Adjusting the tractor rut. Adjusting the rut width on reinforced concrete oversight bases adjustment of the position of the presser foot

The tractor's track may vary in the range from 1200 to 1800 mm. (1500-1900 mm. For MTZ-82, MTZ-82L) on guide wheels and from 1400 to 2100 mm. According to the leading wheels, which allows you to work in all standard outstanding crops.

The front wheels of the MTZ-80 and MTZ-80L tractors are adjustable at intervals of 100 mm. With symmetrical and 50 mm. With asymmetric arrangement of wheels. To install the required track of the guide wheels, follow these operations:

1. raise the jack of the front of the tractor to the separation of the wheels from the soil.
2. loosen the bolts, remove the fingers 24 fastening drawers in the front axle pipe (see fig. "").
3. move the one first, and then another pull-out fist (simultaneously change the length of the steering pull, rotating the pipe 25 in the tips) by a value corresponding to the track installed, then fucked the fists in the front axle pipe.
4. when installing a rhana 1400 mm. And the more pipe 25 steering should be replaced with the extended (applied in the tractor zip).
5. lower the tractor. Check and if necessary.

The front wheels track MTZ-82 tractor, MTZ-82L is adjustable steplessly with a screw mechanism located on the front axle sleeves (Fig. 113) in three intervals (Fig. 112): 1200-1500 mm., 1500-1600 mm., 1600-1800 mm. To change the track, lift the front part of the tractor (or alternate the front wheels), ensuring the lumen between the wheels and the soil, the rear wheels slow down.

Adjusting the KISA tractors MTZ-82 and MTZ-82L (Fig. 113)

1. gasket
2. klinia
3. cap control mechanism (removed)

To set the wheels to the width of the track 1500-1600 instead of 1200-1500 (or vice versa), unscrew the nuts fastening the wheel rim to the disk and turn the wheel so that the rim brackets pass through the slots into the disks. Depending on the required width of the track, set the appropriate mutual arrangement of the wheel rim relative to the disk as shown in Fig. 112.

To obtain a rut in the range of 1600-1800 mm. Remove the wheels from the disks and change them in places, that is, put the left wheel on the right side, right on the left (see Fig. 112). At the same time, pay attention to the fact that the direction of rotation of the tire remains the same (according to the arrow indicated on the sidewall).

The installation circuit of the front wheels of MTZ-82 tractors and MTZ-82L per different collage (Fig. 112)

When the rum is changed by permuting the rim on the disk and wheels from one side on the other, respectively, change the position of the wings by changing the fasteners of the wings. For this, there are additional holes in the brackets and supports of the wings.

To change the rifle width with a screw mechanism (Fig. 113), do the following:

1. loosen the bolts, move and remove the cover 4.
2. free the wedges of 3 sleeves, unscrewing the nuts so much to ensure the free movement of the enclosures of the conical couples.

The rotation of the adjusting screw with the help of the key is provided with the arms of the front bridge of the housings of the side gearboxes with wheels and obtaining the required track in the specified intervals. The rotation of the adjusting screw must be accompanied by a change in the length of the steering. On the left and right corps of the upper conical pairs are labels with a digital designation of the most common rut sizes: 1350, 1400, 1500, 1600, 1800 mm.

After changing the track, the convergence of the front wheels must be adjusted again.

To change the gauge of the rear wheels, follow the following operations:

1. raise the jack of the back of the tractor to the separation of the wheels from the soil; Remove the mounting bolts and remove the lid 1 (see Fig. "") Worm.
2. unscrew the bolts 8 of the attachment of the liner to the hub of one of the wheels on 2-4 and clean the dirt from the mud.
3. rotating Worm 2, move the wheel to get the desired track, after which the bolts of the liner fastening tighten up to the failure and replace the worm cover.
4. set the second wheel to the desired position.

Up to 1600 mm. Pitch is obtained without rearrange the wheels.

For receiving a hava over 1600 mm. Rearrange the wheels (see Fig. below).

• Size "A": 1400-1600 for (15.5-38) p; 1250-1600 for 9-42.
• Size "B": 1800-2100 for (15.5-38) p; 1800-2100 for 9-42.

Adjusting the width of the ruts on the reinforced concrete overall bases

N.D. Kravchenko, V.M. Kruglov, Doctor Tehn. Science, Yu.N. Aksenov, A.Yu. Bogachev, Tech candidates. Science

It is known that in the 1970s, in the domestic network of the main railways, a transition from the differentiated width of the rail track to a unified size of 1520 mm for direct and curves of the plots was carried out. This became possible thanks to the implementation of the following events:

Exception from the turnover of two-axis cars;

The use of two-, three-, and four-axle television carriages, respectively, in four-, six- and eight-axis wagons;

Transition to electric and diesel drive;

Mass introduction of rails R50, P65 and reinforced concrete sleepers.

However, in subsequent years, with an increase in cargo protection, an increase in car loads and speeds of trains, negative consequences of unification began to appear intensively, primarily increased lateral wear of the head of rails and comb
The forest of rolling stock in the curves of the path of the path both with reinforced concrete and wooden spats.

As a way out of the situation in the early 2000s in the curves of the paths with small radii and reinforced concrete spats, it was decided to switch to the differentiated width of the rail track, using special sleepers with a step-by-step tap (2 mm) of the rut width. Operational tests of this design on roads with bonds of KB, ZBB, ARS gave positive results primarily to reduce the intensity of lateral wear of the rail head and ridges of rolling stock. However, with such an adjustment of the rut width, the cost and labor costs increase significantly, the technology of performance of work is complicated.

Mitis proposed and patented (patents No. 2267569, 2373318) for a path with reinforced concrete substrates The design of the intermediate rail bond and the method of smooth (in accordance with the current standards) of the rail track of both broadening and narrowing.

In fig. 1 For a path with reinforced concrete substrates, two versions of the fastening node with composite liners are presented. In fig. 1, and an option where the rail thread on both sides has composite liners of the same width, for example, 12 mm. It is acceptable for both direct portions of the path and for circular curves, but not suitable for transition curves. It is necessary to combine the structural elements of the bonding assembly and reinforced concrete sleepers, at which one and the same sleeve could be used on direct sections, in transient and circular curves, i.e. Unified in relation to the conditions for adjusting the rail wheel width from 1520 to 1535 mm.

The simplest technical solution is the device on the recessed vessels of reinforced concrete sleepers of an extended space between the side stops of the rail soles. As a side stops, it is advisable to use metal anchors deployed in the factory setting in concrete (for example, according to the sample of the ARS bonding). The distance Ln between the vertical surfaces of the anchors from the rail threads is

Resolution of the Scientific and Technical Council of JSC Russian Railways In November 2009, a decision was made to change the nominal value of the rail width: for direct and radius curves up to 650 m - 1520 mm; For radius curves from 651 to 350 m - 1530 mm, and for curves with a radius of 349 m and less - in accordance with existing standards. The current regulations for these conditions are provided for the width of the track of 1535 mm for wooden sleepers, and for reinforced concrete

1520 mm. Here, the required width of the track 1535 mm is provided to provide a set of reinforced concrete sleepers with step-by-step in 2 mm change of the width of the rut from 1530 to 1535 mm, which was noted above, ineffectively compared to the set for these purposes composite inserts.

With the existing technology for assembling the rail grille at the PMS bases in direct portions of the path after replacing the inventory rails, shameless weaves are very often flavored (up to 1515 mm and less), i.e. The narrowing goes beyond 1518 mm (tolerance of ± 2 mm when replacing inventory rails with weaves).

In addition, the above-mentioned resolution, the minimum value of the rut width for direct sections was taken 1516 mm, which corresponds to the tolerance when operating +8 mm; -4 mm. In this regard, it is advisable to take for assembling on the bases of links of rails-shepal lattices for both direct and curves of sections with a width of a rut 1522 instead of 1520 mm.

In the curves of the paths, as is well known, in the initial period of operation due to the sample of the backlash, there is a gauge. In this regard, it is advisable for circular curves at nominal values \u200b\u200bof the rut width of 1530 and 1535 mm, respectively, take 1528 and 1534 mm.

The amount of sleepers with the same insert width should not be less than five. The slopes when weeping the width of the ruts must correspond
The activities of the existing standards.

Taking into account the corrected values \u200b\u200bof the rut width for the direct portions of 1522 mm, and for circular curves in the range of radius from 650 to 350 m and a radius of less than 349 m, respectively, 1528 and 1534 mm, respectively, the distance between the side stops of the rail filaments (taking into account the width of the liners) on reinforced concrete spats (Fig. 2) must be: ln \u003d 182 mm with R65 and Ln \u003d 164 mm rains with P50.

Moreover, Ln values \u200b\u200bare constant with the corresponding rails for direct, circular and transition curves.

In the development of intermediate bonding, the condition for eliminating the eccentreality of transmitting the normalized load from the bonding unit to the sleeve was envisaged during the placement of the liners of various widths and the possibility of adjusting the position of rail threads in height.

A feature of this bond is that the terminal bolts with T-shaped heads are in contact with the metal anchors along the rounded surface, and the upper branch of the rod terminal also has a rounded concave surface. Between the nuts on mortgage bolts 3 and the upper branches of terminals 2, centering elements are provided 4. Such a combination of interacting elements when tightening nuts on a bolt 3 eliminates the transmission eccentricity
Vertical load when placed between the vertical surfaces of the side of the rail and the anchors of various widths of the liners (see Fig. 1.6).

In fig. 1, the option of adjusting the height of one rail thread relative to another, where the eccentricity of the transmission of the vertical load is also excluded.

Taking into account that the inner rail thread of the curve works in lightweight conditions compared with the outer, varying the set of liners in 2 mm increments, initially change the width of the rut from 1522 to 1528 mm on it. Then, similar operations are carried out for an external thread, while ensuring an increase in the width of the rut from 1528 to 1534 mm.

According to the tape width adjustment scheme, both when assembling the rail grille, and when replacing the inventory rails, it was possible to determine the positions of the position of transitional and circular curves in real conditions with an error, not exceeding the distance between the axes of the sleeper with an excess of 2000 pcs / km . 500 mm.

Material for the manufacture of electrically insulating liners may be a shock-resistant polyamide (PE), manufactured in Russia, as well as a polyuritan elastomer (Elastollan), produced in Germany, which have proven well when testing similar products of the railway track with bonds of ARS under the conditions of polygon tests on the experimental ring .

For smooth adjustment of the rail ross width from 1522 to 1534 mm, there are enough four varieties of inserts by their width, namely 12, 14, 16 and 18 mm. In addition, the liners 12 and 18 mm wide are still the fact that the second is 1.5 times wider than the first, but they both may be black. Inserts 14 and 16 mm wide can be additionally different with flowers. For example, the first can be yellow, and the second is green.

It is advisable to adopt that the combination of liner binding sites in the path for direct sections was constant: from the outside - 18 mm wide, and from the inside of both rail strands - 12 mm.

All links based on the PMS is provided to collect with the imitation of the width of the rail rut under the direct sections.

When the inventory rails are replaced by shameless weaves, the removal removal from the direct portion in the first transition curve to 1528 mm (the width of the rail rut for curves with radii from 651 to 350 m) is provided on the inner rail thread. At the same time in a circular curve inserts 18 mm wide
It is envisaged by the path from the side of the axis, and 12 mm wide - from the outside. On the outer rail thread, the liners of 12 mm wide - on the side of the axis of the path, and 18 mm width - from the outside.

In areas of curves with a radius of less than 350 m, the rut width in a circular curve is 1534 mm. Here, already on the inner and outer rail threads, the liners 18 mm wide are provided by the path axis, and 12 mm wide - from the outdoor side.

On the second transition curve, the set and placement of liners are aimed at narrowing the rut. In fact, this is a mirror image of their placement on the first transition curve to broadening. In this case, the length of transition curves is usually different.

The order of placement of the liners during the discharge of the rail track from 1522 to 1534 mm is shown in the table.

The proposed version of the regulation of the width of the rail rut in the way with reinforced concrete substrates is beneficial in terms of labor costs from a similar operation on a way with wooden spats. It disappears herein to drill at least four holes with the treatment of their walls by antiseptic against
rotten. In addition, the cost of complete dismantling and installation of intermediate bonding nodes are excluded in a way with a reinforced concrete substrate base. Labor costs when performing similar work on the way with wooden spats, not less than 5 times increase.

The following method for regulating the width of the track using composite inserts of four varieties in width is favorably different from the method of step-by-step adjustment using reinforced concrete sleepers according to the following main indicators:

Unification of reinforced concrete sleepers manufactured taking into account those shown in Fig. 1.6 and 2 features, for use in direct sections, transitional and circular curves, including the width of the kolas of 1535 mm;

Elimination of the need to acquire metal forms for additional manufacture of seven varieties of reinforced concrete sleepers under the width of King 1522, 1524, 1526, 1528, 1530, 1532 and 1534 mm;

Significant simplification of the technology of work when used in the turnover of products (four composite liners weighing less than 2.5 kg per cent, compared to reinforced concrete spats, weighing 270 kg each) when assembling a rail grid, replacing the inventory rails with dumpless letters, sorting, transportation and other related work, the current way and its repairs;

The possibility in real conditions on the ground determine the position of transitional and circular curves with an error that does not exceed the distance between the axes of the sleeper with an excess of 2000 pcs / km, i.e. 500 mm.

The proposed method for regulating the width of the rut and the concept of intermediate fastening is acceptable and for switching transfers with reinforced concrete bars. It is also possible to use a breakdown intermediate bond.

Adjustment of the width of the discharge slot crusher series C is performed by moving two wedges in the direction to and from each other. This movement causes a change in the effective thickness of "S" by a wedge pair, which in turn increases or reduces the width of the discharge crusher, respectively.

For all models of crushers, adjusting the width of the discharge slot can be performed mechanically - by turning manually deaf (cap) nut, or using a hydraulic system (optional) using an electrical control panel. Information on the hydraulic adjustment of the width of the crusher (optional) is given in the Hydraulic Adjustment section of the discharge slot.

4.6.1 Mechanical adjustment of the width of the discharge slot

The main components of this device are adjusting wedges, deaf nuts (2) and lock tubes (3). To change the width of the discharge slot, it is necessary to use the ratchet mechanism supplied with the crusher (special tool) to rotate the deaf nut.

Figure 4.3 Mechanical adjustment of the width of the discharge slot

To change the width of the discharge slot, it is necessary to weaken the locking nuts of the removal thrust and then, it is necessary to rotate the deaf nuts clockwise or counterclockwise to increase or decrease the width of the discharge crusher, respectively. One full turn of one deaf nut has a total effect on the width of the discharge crusher, as shown in Table 4-1. One full turn of both deaf nuts in one mutual direction will lead to a change in the width of the discharge slit of the crusher twice, as shown in Table 4-1.

Table 4-1 Average Changing the width of the discharge slot for turnover of a deaf nut

To calculate how much it is necessary to turn the deaf nuts to change the width of the discharge slot, simply divide the required value of the change in the width of the slot to the corresponding value from table 4-1 and the amount of nuts.

The required number of revolutions \u003d (the required change in the width of the discharge slot) / (change in the width of the discharge slot crusher)

Round the result to the nearest more.

Example: In order to change the width of the discharge slot on a C125 crusher by 10 mm (3/8 inches), the deaf nuts must be rotated as follows:

10 mm / 1.7 mm / turnover \u003d 5.88 \u003d 6 full revolutions \u003d 3 rotation of each deaf nut

3/8 "/ 0.07" / turn \u003d 5.35 \u003d 6 full revolutions \u003d 3 turn of each deaf nut

4.6.1.1 Reducing the width of the discharge crusher

2. Determine how much it is necessary to reduce the width of the discharge slot, after which it is possible to calculate the number of revolutions to which you need to turn the deaf nut.

3. Unscrew the tension springs lock nuts (Figure 4.4). When weakening the springs, it is necessary to ensure that the spacer plate does not fall out.

5. Rotate the deaf nut counterclockwise. Check that both wedges are adjusted in the same way that their position relative to the crusher remains unchanged. If the width of the discharge slit is planned to be changed significantly, it is necessary to turn a little deaf nuts a little, then it is necessary to release a little more if required, springs. In the rear ends adjusting wedges are attached washers. With a decrease in the width of the discharge slot, the wedges must only move until these washers are spoiled into the guides.

6. Secure the tubes with glings.

7. Adjust the length of the springs in Table 4-2 (see Figure 4-4).

8. Run the crusher and listen, not "beats" whether the spacer plate. If the beating is heard - you need to seek advice in Metso Minerals.

9. Start the crushing process.

Figure 4.4.

Table 4-2 Opening Spring Length

4.6.1.2 Increase the width of the discharge crusher

The width of the discharge crusher can be adjusted only on the non-working crusher.

1. Stop crushing process and stop the crusher.

2. To determine how much it is necessary to increase the width of the discharge slot, after which it is necessary to calculate the number of revolutions to which you need to turn the deaf nut.

3. Unscrew the tension springs lock nuts (Figure 4.4).

4. Remove the pin from the lock tube and move the tube towards the crusher.

5. Rotate the deaf nut clockwise. Check that both wedges are adjusted in the same way that their position relative to the crusher remains unchanged.

6. Ensure that the spacer plate does not fall down when weakening the springs.

7. Fix the tubes with hoptes.

8. Adjust the length of the springs in Table 4.2 (see Figure 4.4).

9. Start the crusher and listen, not "beats" whether the spacer plate. If the beating is heard - you need to seek advice in Metso Minerals.

10. Start the crushing process.

4.6.2 Hydraulic adjustment of the width of the discharge slot (optional)

Hydraulic adjustment of the width of the discharge slot allows remote adjustment of the width of the discharge slot, which is much speeding up the process of adjustment carried out from a remote control panel.

Figure 4.5 Adjusting the width of the discharge slot

The system is activated by an independent hydraulic unit, or it can be connected to a large hydraulic system as in Lokotrack. The pressure of the hydraulic system oil causes the movement of wedges in direction to each other or from each other, while reducing or increasing the width of the discharge slit, respectively.

Adjusting the width of the discharge slit can be produced on a non-working crusher or idling. Performing an adjustment of the width of the discharge slot during crushing shortens the service life of the crusher details. More information is in the Installation Guide, Chapter 4.7 - Installation of the Hydraulic Unit.

4.6.2.1 Reducing the width of the discharge slot

Turn the width adjustment switch 6 (located on the control panel) to the "Decrease" position. Watch the movement of wedges.

Note: Do not allow you to strike a friend of crushing tiles of cheeks.

Adjust the width of the discharge slot into several stages. Check the width of the discharge slot between the adjustments, see the minimum width of the discharge slot, which is listed in the Overview of the Crusher.

After adjustment, check the pressure values \u200b\u200bin the subdomain cylinder.

Figure 4.6 Remote Control System Adjustment System Control

4.6.2.1 Increase the width of the discharge slot

Turn the width adjustment control switch 6 (located on the control panel) to the "Increase" position. Watch the movement of wedges.

When the width of the unloading slit increases, the pressure in the subdomain cylinders will automatically rise, and the wedges will stop for a short time.

After adjustment, check the pressure values \u200b\u200bin the subdomain cylinders.

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6.2. Trimming width adjustment

Turn the handwheel hand, so that the upper knife takes the extremely lower position (Fig. 20).

Loosen the screw (1) and move the block of the lower knife (2) to the left, slightly tighten the screw (1).

Loosen the screw (3) and move the top knife to the left or right, depending on whether it is necessary to reduce or increase the width of trimming. Tighten the screw (3).

Loosen the screw (1) and return the bottom knife to the initial position. Tighten the screw (1).

6.3. Adjusting the height of the needleidel

Turn overlock pulley so that the needle person is passed the upper dead point and started moving down.

Remove the top cover, unscrew the screws (3).

Loosen the screw (4), set the necessary height of the needle product and tighten the screw (4).

Install the top cover (3) in place and secure it with screws.

Check the charged charge (needle fuses).

6.4. Adjusting the pressure and position of the presser foot

6
.4.1. Adjusting the pressure of the presser foot

To adjust the clamp, loosen or increase the compression of the pressure foot spring, turning the regulator (1).

6.4.2. Adjusting the position of the presser foot

6.4.3. Adjusting the height of the clamping foot

6.5. Engine adjustment fabric

6.5.1. Adjusting the height of the tissue engine

Turn the flywheel with your hand so that the tissue engine takes the extreme upper position.

Loosen the screw (1) and adjust the height of the tissue rear engine (2). The tissue engine must be raised above the needle plate by 0.8-1.0 mm. Tighten the screw (1).

Loosen the screw (3) and move the front tissue engine (4) up either down so that the distance over the needle plate is 0.8-1.0 mm. Tighten the screw (3).

6
.5.2. Adjusting the horizontal position of the engine of the fabric

For adjustment, loosen the screw (1) and turn the adjustment shaft (2). Do not tighten the screw (1) until you adjust the horizontal position of the tissue engine, then tighten the screw (1).

6.5.3. Adjusting auxiliary engine fabric

The height of the auxiliary part must be 0.3-0.5 mm below the main toothed rail. Adjustment is performed after weakening the screw (2).

6.6. Needle and needle plate

When the needle moves to the most upper position, the distance between the needle's edge (left needles, if there are two) and the needle plate is 9.5-9.7mm for the car with

from
a bandage lift or 10.8-11.0mm for a high-rise needle machine. Each needle must be centered in the appropriate needle opening on the needle plate. The right needle should be higher by 0.2-0.3mm than the left, and the distance between the needle's edges and the front edge of the hole in the needle plate (and in the presser foot) is 1.2mm. The needle should accurately fall into the hole of the needle plate and the presser foot. Touch the needle edge of the holes in the needle plate or foot leads to its deformation or deviation in the sewing process, which, in turn, attracts passing stitches, thread breaks, poor thread tension or needle breakdown.

ATTENTION!To center the needles in the needle plate and the paw, it is enough to adjust the position of the needle plate (it is possible to slightly move the support bar of the needle plate) and the legs (there is an opportunity to move it "from the seam" ("to the seam")), as well as the needle holder around the axis and height.

Be sure to consider!The change in the trajectory of the movement of the needle in space will inevitably entail the need to adjust the position of the loopers and the needle fuses (bumps).

6.7. Synchronization of the right looper and needles

The gap between the needle and the upper looper (Fig. 28), when the upper looper moves to the left point between the needle center and the left edge of the looper 4.4-4.7 mm. For a two-chigal model, the distance between the needle center and the left edge of the looper 5.4-5.7 mm.

6.8. Synchronization of the left looper and needles

(Fig. 29, 30)

When the left looper moves to the leftmost position, the distance between its tip and the central line of the needle (the left needle, if 2) is 3.7-3.9mm for a high-lifting needle machine.

When the left looper moves to the central needle line (the left needle, if there are two), the gap between the needle and the looper is 0-0.05mm.

6 . 9 . Synchronization of the right and left loopers

The intersection of the right and left loopers is shown in Fig. 31. It is necessary that all of the above synchronization are performed.

6.10. Adjusting the needle fuses (bumps)

TO
when the tip of the left looper is located opposite the central line of the needle (the left needle, if there are two), the gap between the needle and the rear chipper A is 0mm. When the needle moves to the lowest position, the gap between the needle and the front bump in is 0.15-0.2mm.

6 . 11 . Synchronization of the heating looper and needles

(Fig. 33, 34)

The heating looper must be fixed in the lowest position of its holder, and at the time of reaching the leftmost position, the distance between the tip of the looper and the central line of the needle should be 2.5mm. To adjust the trajectory of the action of the healing looper, use the rice. 34.

7. Troubleshooting and maintenance.

	Problem		Solution (correction)
	Breakdown needle	A stupid or twisted needle, a needle not that system, the needle is not correctly installed. 2.5. Fig. 10.	Replace the needle to the new DC X 27 system.
		The needle fuse has shifted.	Adjust the bumps.
		Shooter shifted.	Adjust the positions of the needle and the looper relative to each other.
		Non-compliance of the needle number, thread numbers and thickness of the material being styled.	Change the needle (check with a table to select the needle to the thread).
		The needle is not in the center of the needle opening in the needle plate or in the presser foot.	Adjust the needle plate and clamping leg.
	Breaking	Incorrectly filled the thread.	Take the thread correctly.
		Thread tension is too high.
		Incorrect adjustment of the needle and looper.	Check the adjustment.
		Inappropriate the size of the thread and needle
			Install the strand for the thread so that the thread is sampled smoothly.
		Overheating needles: no silicone lubricant or incorrectly installed bump.	Explore the silicone lubricant or adjust the bumps.
		On the needle, the loovel, the needle plate, the needle rod, the pucks of the tension of the thread or on the nietaritor there are burrs.	Collect and polish or replace the new one.
	Pass stitches	Needle stupid or curve, incorrectly installed needle.	Install the new needle correctly.
		Invalid gap between the looper and the needle.	Adjust the gap.
			Change the thread and needle in accordance with the needle selection table to the thread.
		Wrong refueling thread.	Take the thread correctly.
		Incorrect thread tension or tension is too strong.	Adjust the thread tension.
		The tip of the looper is damaged.	Replace the looper to the new and adjust.
		Properly installed fuses.	Adjust.
	Weak stitches (loop lines)	Wrong refueling thread.	Take the thread correctly.
		Inappropriate the size of the thread and needle.	Change the thread and needle in accordance with the needle selection table to the thread.
		The tension of the threads is incorrectly adjusted.	Adjust tension.
		The needle thread is not lubricated.	Fill silicone oil.
		Improper installation of needles and loopers.	Adjust the needle and loopers.
	Uneven stitches (uneven, floating tension of threads)	Wrong refueling thread.	Take the thread correctly.
		Rack for the thread is installed incorrectly.	Install the thread for uniform filaments.
		The lower knife is set incorrectly.	Install the bottom knife correctly.
		Knives cut in inaccurately: the knives are installed incorrectly or the bottom knife is stupid.	Adjust knives; Sharpen or replace knives.
		The thread tension disk or the niteelectric is burrs.	Collect, polish or replace new.
		The needle's edge is damaged.	Replace the needle of the new one.
		Incorrect thread tension.	Adjust the thread tension.
	Crazy stitches	Too strong tension of the thread.	Adjust the thread tension.
		Wrong pressure presser foot.	Adjust the pressure of the presser foot.
		The height of the tissue engines is incorrectly installed.	Adjust the tissue engines.
		Knives cut inactiously.	Adjust knives or scold them.
		The differential engine of the fabric is adjusted incorrectly.	Adjust the ratio of the differential engine of the fabric.
		The needle is too thin.	Use the needle corresponding to the type of fabric and threads.
		The width of the bulk does not correspond to the width of the finger of the needle plate.	Adjust the width of the bulk or replace the needle plate.
	Thread chain does not go out smoothly without material	Incorrectly installed clamping foot.	Install the presser foot correctly.
		Incorrect synchronization of pyregiviators.	Adjust the pyregiviators.
		An incorrectly installed ceiling looper is installed.	Spend adjustments.
		Wrong refueling thread.	Take the thread correctly.
		Incorrect or too strong thread tension.	Adjust the thread tension.
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