MAINTENANCE PROCEDURES
50 HOUR MAINTENANCE
Perform "BEFORE SERVICING PROCEDURES" before
attempting any
of
the following checks.
Complete all "DAILY MAINTENANCE" checks prior to this
time interval.
Perform "BEFORE OPERATING CHECKS" before attempting
any
of
the following checks.
CHECK
HYDRAULICRETURN
FILTER
GAUGE
Location: Return filter gauge (A). Located behind the left hand
side screen, on top
of
the oil reservoir and
on
the
left hand side
ofthe
return filter assembly (B).
To Check: Raise the boom to the horizontal position.
Extend the
boom
cylinder fully.
Raise the engine speed to full RPM.
Retract the boom cylinder
at
full speed.
The return filter gauge reading should not read more
than 25 PSI.
If
the reading is more than 25 PSI, the
filter element must be changed.
CHANGE HYDRAULIC
RETURN
FILTER
ELEMENT
Location: The return filter element (C) is located inside the
return filter assembly (B)
on
top
of
the oil reservoir.
To
Change: Retract the boom and lower the forks to the ground.
NOTE:
Shut
off
the engine. Release the pressure in the oil
reservoir
by
loosening the filler / breather cap (D).
& CAUTION
The return filter assembly cover is spring loaded.
Loosen, but do not remove, the four cover bolts (E)
on
the top
of
the return filter assembly. Carefully
push down and rotate the cover clockwise
.to
remove.
Remove the cover spring and pull the filter element
out using the swivel handle on the element. Make
sure both o-rings are in place inside the new filter
element, then transfer the bypass valve (F) into the
new filter element. Reinstall the filter element, cover
spring and cover, making sure the o-ring is
in
place
between the cover and the return filter assembly.
This change interval is only
for
the first initial 50 hours
of
use. Following initial replacement
of
filter see Service
Intervals on page 5-5
of
this manual
for
standard change
intervals.
5-12
A
F
D
c
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