21
TROUBLE CHART
Trouble Cause Remedy
When any work is to be done on body or hoist and body is fully or partly
raised, body must have both props securely set or be blocked securely so it
cannot fall. In addition, the HOIST control lever must be in neutral with the
hoist lever lockout engaged in the "lock" position and the PTO disengaged.
1) Failure to raise
load.
la) Insufcient oil:
double-acting
hoists -
single-acting hoists -
la) Add oil as required:
tank - with cylinder
fully extended, oil
should ow out of
oil level plug hole.
cylinder - with cyl-
inder fully extended,
oil should ow out of
oil ll hole at top of
cylinder. See Page 20
for recommended oil
type.
1b) Air in system. lb) Purge air from system.
1c) Pinched hydraulic
hose.
lc) Locate and relieve
pinching. Relocate or
replace hoses as
required.
1d) Control linkage parts
worn or missing.
1d) Check linkage for
proper connections
and movement.
Replace worn or mis-
sin parts.
le) Pump not running. le) Check U-Joints at PTO
and pump for tightness.
lf) Control valve not
operating.
lf) Check valve spool for
full stroke.
1g) Ball check and
sprint in top and bot
tom cylinder
manifolds missing
which could cause
oil to by-pass within
the cylinder.
1g) Missing, replace.
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