Lifting System Common Faults And Troubleshooting - EKKO EK20R Manual

2、Suction tank or oil filter plugged Clean and replace

11.3lifting system common faults and troubleshooting

Fault
Lifting, lowered is
not stable, loud
noise
The fork frame is
skewed
Left and right lifts
are not
synchronized
Full load
super-liter speed
does not meet the
specified
requirements
Cause
1、The gap between upper end
roller of outer mast and channel
steel of inner mast is too large >
1mm
2.The gap between the lower end
roller of the outer mast and the
channel steel of the inner mast
is too large > 1mm
3、The clearance between the
side roller of the fork frame and
the channel of the inner mast is
too large >1mm
4、Side roller shaft fastening bolt
loose
5、Slide frame, inner mast
channel steel with debris
1、Inconsistent tire pressure on
the left and right sides
2、Left and right chain tension is
inconsistent
3、Oil passage blockage in speed
limit valve
4、Part of the lift cylinder inlet is
blocked
1、The left and right lift
cylinders are inconsistent
2、The left and right cylinder
heights are inconsistent
3、The left and right cylinder
strokes are not consistently
larger than the cylinder head
adjustment range
1、Insufficient working oil
2、he throttles orifice of the
speed limit valve is blocked by
the dirt
3、The safety valve is slippery
Troubleshooting
Reduce adjustment
gasket
increase adjustment
gasket
Reduce adjustment
gasket
tighten
Clearly, add oil regularly
on the track.
Fill air, pressure is
consistent
Consistent tightness
adjustment
Clean and replace
Overhaul, cleaning
180-degree adjustment
with the cylinder head
Adjust with the adjusting
bolt on the cylinder
Adjusting washer on the
piston rod of the lifting
cylinder
Add oil
Unpick and wash
Cleaning, repair
48