Other Symptoms and Solutions
1. The car comes down after car operation has been stopped
When oil is leaking from the cylinder or other piping
Check and take action.
When there is a lot of air inside the cylinder
Bleed the air thoroughly.
When there is foreign matter in coil D
Disassemble and clean it (a filter is fitted).
When oil is leaking from manual lowering valve 'H'
Disassemble, inspect the O-rings and replace them.
When oil is leaking from the check valve
Disassemble, inspect the O-rings and replace them.
When adjustment #8 is closed too far
Turn adjustment #8 counterclockwise little by little.
When the O-rings of adjustments #7 and #9 have come out of place or are broken, or there is foreign matter
Disassemble, inspect the O-rings and replace them.
2. The car sinks a lot when a load is placed in it
When the cylinder was selected incorrectly and the pressure difference is large
Recalculate the capacity.
When the wire ropes have stretched
Check and take action.
When there is a lot of air inside the cylinder
Bleed the air.
3. The car stops away from the landing position
When the landing limit switch is in the wrong position
Correct the limit switch position.
When the deceleration speed is too fast
Turn adjustment #4 clockwise.
When adjustment #5 is closed too far
Turn adjustment #5 counterclockwise.
4. Other possible symptoms and causes
When the car runs irregularly or shakes
Remove all air from inside the cylinder (use the air valve).
Check the cylinder rod surface for bending/unevenness. (Check by touch)
When the car shakes or makes a lot of noise
Check the verticality of the cylinder installation (within 3mm in all four directions) (use a plumb bob and tools).
Check the guide rail surface and apply lubricant or top up the oil.
When the car cannot climb, or barely climbs (climbs while shaking), in the deceleration zone
The relief pressure is set lower than the specified value.