Valid from serial number T-code
713962- 403-414, 669-671, 716-718
Order number Date
218920-040 2005-06-01
© BT Europe AB Service Manual  REFLEX RR B,E RR B,E CC 37-  13
Lifting devices – 7400
Troubleshooting
37.6  Troubleshooting 
Table 9: 
Table 10: Troubleshooting
Symptom Possible Cause Possible Solution
Forks extend and 
retract unevenly
• Hydraulic hoses 
connected incor
-
rectly
• Dirt between in-
ner and outer fork
• Leakage at piston 
seal
• Length of the 4 
hoses unequal
• Damaged flow di-
vider
• Connect hydraulic 
hoses
• Remove dirt
• Replace piston seal
• Replace flow divider
Forks move with-
out using the lever
Leakage from the 
control valve
Check below
Forks leak oil • Leaking cou-
plings
• Cylinder head 
seal damaged
•Fork is worn
• Correct mounting or 
replace couplings
• Replace cylinder 
head seal 
• Immediately re-
move forks from 
forklift truck 
Forks move jerkily 
when extended or 
retracted
• The control valve/
pump is worn
• Insufficient flow
Check below
One outer fork is not 
retracting
Bolt is broken or loose Replace or fasten bolt 
with Loctite 542
The tips of the forks 
are no longer at the 
same height
One of the forks has 
been overloaded and 
is permanently 
deformed
Remove forks from truck. 
Check below.
https://www.forkliftpdfmanuals.com/