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8.2. Trouble chart for telescopic forks with a separate flow divider
(RE2, RE4, REE2 and REE4)
Symptom Possible cause Possible solution
Forks do not move evenly Hydraulic hoses connected
wrong
Dirt between inner and outer
forks
Piston leakage
Length of 4 hoses is not equal
Flow divider damaged
Connect hoses according to the
scheme (fig. 7.2)
Empty outer fork
Replace piston plug
Mount equal hoses
Forks move without control Leakage in the control valve
Replace flow divider
Consult your fork-lift truck dealer
Oil leaks from the forks Couplings leak
Tighten again or replace
Cylinder head plug damaged Replace cylinder head plug
Fork is cracked
Take the fork immediately from
the fork carrier and contact your
fork-lift truck dealer
Forks move irregularly Control valve/pump worn-out Consult your fork-lift truck dealer
Not enough oil flow
Consult your fork-lift truck dealer
One outer fork first stands still
during retraction and then
suddenly retracts
Spiral clamping bush broken Replace spiral clamping bush
One of the outer forks does not
retract
Spiral clamping bush broken Replace spiral clamping bush
One fork tip hangs lower than One of the forks is plastically Consult your fork-lift truck dealer
the other
distorted by overloading
Wear resistant strip of one fork is Replace wear resistant strips
worn-out more than that of the
other fork
Too much clearance space
between inner and outer fork
Wear resistant strips worn-out
Casing worn-out
Table 8.2 Trouble chart for telescopic forks with a separate flow divider
Replace wear resistant strips
Replace casing
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