Trouble phenomenon:
When the forklift picks up the goods, the forklift lifts or drops, and the mast tilts, there will be intermittent stop and move or fast or slow shaking.
Repair method:
1. Check whether the tire pressure is consistent and supplement it if necessary. Check whether the tightness of the two chains is consistent, and adjust if they are inconsistent. Check the wear of the inner main frame, fork frame, large and small rollers, and bearings if excessive wear should be given. Adjust or replace.
2. Check whether the oil storage in the liquid storage tank meets the functional requirements. If the fluid level is too low, add hydraulic oil. Under no-load conditions, repeatedly raise the fork to make the hydraulic cylinder actuate several times to remove the air. If there is a malfunction, If it still does not disappear, check whether the suction pipe joint is too loose or the seal is not tight, and if necessary, remove and clean the filter.
3. Check whether the wheel rotation is abnormal. If there is an abnormality, the roundness error of the roller may be too large (more than 1mm). The roller should be replaced. At the same time, check whether the weld between the roller shaft and the mast is cracked, repair welding, and proper roller lubrication so that it can rotate flexibly.
4. If necessary, check whether the mast column and beam are deformed and whether the fork frame is twisted or deformed. The inner and outer door frames must be straight, the maximum bending deformation is generally not more than 2mm, and the lateral width difference is generally not more than 2mm. If the overall deformation is severe, the horizontal opening, the rust is severe, and the inner door frame and the roller joint guide rail are severely worn, they should be scrapped. If there is local deformation or unevenness, flame correction is allowed.
5. For overlapping masts, check whether the lubrication of the masts is good.
Failure phenomenon:
The forklift frame is skewed. Trouble phenomenon: When the forklift is running or picking up goods, the fork frame is skewed or easy to issue cards, and the movement is not smooth.
Repair method:
1. When the above situation is found during forklift work, first check whether the tire pressure is consistent, whether the cargo is heavily loaded, and whether the tightness of the two chains is the same, and solve it according to the situation;
2. If the above inspection conditions are expected, or the effect is not apparent after removal, further inspections should be made to see if the parts are severely deformed and the rollers are worn and over-rotated. If the machine part is deformed, it should be corrected, and the weld should be repaired. If the roller is severely worn, it should be replaced with a new one; if it is inflexible or slightly deformed, it should be adequately lubricated or corrected for deformation.
Trouble phenomenon:
When the forklift lifts, the movement is slow. Even if refueling operation, the lifting speed does not change much.
Maintenance method: When the forklift lifts slowly, check the hydraulic oil and add it if necessary. If the forklift lift speed does not change, the main reason is insufficient fuel supply. Check the working condition of the hydraulic pump to see if the oil supply is inadequate due to excessive wear, and replace it with new ones if necessary. If, after the inspections mentioned above or repairs, slow lifting still occurs, check whether the working pressure of the overflow valve meets the standard, and adjust it if necessary.
Trouble phenomenon:
When the forklift is working, sometimes the forklift lifts and jumps.
Repair method: If the forklift is working, if the fork is jumping, check the hydraulic working system oil pipe, hydraulic pressure, and joints for oil leakage, and repair it according to the situation. Then check the hydraulic oil level and add oil if necessary. At the same time, it is essential to prevent and appropriately lubricate the mast and wheels to make them move flexibly and freely.
Leave A Comment
You must be logged in to post a comment.