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CAUTION
!
The level of the hydraulic oil in the hand
pump should always be at OIL LEVEL. If the
level is higher, the oil bursts out from the
breather plug.
Changing the hydraulic oil
Remove the plug cap of the hand pump.
Then remove the breather plug (with
24mm wrench) before removing the hy-
draulic hose connected to the cylinder on
the vibrator side. Set the run lever to
reverse, then drain the hydraulic oil from
the pump.(Fig.62, 63)
After the oil is drained, attach the hydraulic
hose again to the cylinder on the vibrator
side. With the direction control lever at the
forward-most position, fix to the hook with
a rope to immobilize.
(Fig.63, 64)
Pour hydraulic oil(550cc) from the hand
pump breather plug attachment hole.
(Fig.62)
Remove the air releasing plug of vibrator
cylinder. Then oil will come out from the
air releasing plug. After air bubbles stop
coming out, attach the plug. Tighten se-
curely. (Fig.61)
Remove the rope that is fixing the travel
lever, then while stopping the travel lever
for about 10 sec. at the forward position,
move the travel lever to maximum position
for forward and backward a few dozen
times. At this time, the check valve opens
at the maximum position for forward, and
the air in hydraulic oil will be bleed from
the oil tank at the top of hand pump.
(Fig.64)
Remove the handle cover, and if the accu-
mulator move about 2 to 3 cm when
moved the travel lever to backward posi-
tion as shown in Fig. 67, air bleeding is
completed. If there is the lack of air bleed-
ing, do the procedure “1” again. (Fig.64,
Attach the hand pump breather plug, put
on the plug cap. After making sure the hy-
draulic oil in the pump is at OIL LEVEL,
attach the breather plug.
Checking the battery
The standard battery installed is a mainte-
nance free battery. It is not necessary to
supply battery fluid. In case of a sudden
voltage drop, the battery cannot be
charged quickly, so it has to be replaced
with a new one.
Check of battery capacity by battery
checker
When the battery charging level gets low,
the battery checker of the hour tachometer
lights up in red.(Fig.66)
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Fig.63
Air releasing plug
Cylinder
Hydraulic hose
Fig.64
Direction
control lever
Hook
Forward-most position
Fix with the r
ope.
Backward position
Neutral position
2〜3cm
Handle cover
Fig.65
9.9 Battery
Hydraulic oil:
Shell Terrace Oil #32 or equivalent