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31
5.
Check the hydraulic cylinder. With platform
at vehicle ! oor level, remove the hydraulic
line from the RELIEF port on the cylinder
(FIG. 31-1). Hold the control switch in the
RAISE position for two seconds while you
watch for hydraulic ! uid at the RELIEF port.
A few drops of hydraulic ! uid escaping the
port is normal. However, if ! uid streams
out, piston seals are warn. Replace seals.
6. Check pump oil " lter in the reservoir line
(FIG. 31-1). Clean or replace " lter, if neces-
sary.
CHECKING SOLENOID VALVE
FIG. 31-1
RELIEF
PORT
RAISE
PORT
CYLINDER
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