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-
,
SERVICE
&
MAINTENANCE INSTRUCTIONS
Relief Valve
This valve
is
preset at the factory to prevent system
pressure exceeding
2000
psi.
Do
not attempt to
reset the valve.
If
it is malfunctioning, replace
it
with
an authorized factory replacement part.
Swing Chain Adjustment (Figure
27)
1.
Center boom to mainframe. Loosen locknuts
on chain adjustment bolts and tighten nuts on
adjustment rods until all slack
is
removed from
chains.
-1
Do
not over
-
tighten the chain.
Over
-
tightening will cause excessive load and
premature failure.
2.
Tighten locknuts on chain adjustment bolts.
Kingpost and Swin Cylinder Bolt
Inspection (Figure
9
7)
Kingpost and swing cylinder bolts were installed
using Loctite and should not loosen. However, they
should be checked daily to be sure they are tight.
Should any loosen, or when replacing them during
a repair operation, clean bolts and nuts, apply
Locquicprimer and Loctite
609.
Tighten as outlined
in torque chart on page
1
1.
1.
Replacement
tooth
2.
Tooth
shank
Figure
26.
Tooth Replacement
Bucket Tooth Replacement
(Figure
26)
1.
Remove worn tooth by driving a chisel between
2.
Install replacement tooth and use
a
punch to
shank and tooth.
peen tooth to shank on both sides.
1.
Kingpost 3. Mainframe
2.
Swing cylinder
4.
Chain adjustment
Figure
27.
Chain Tightening
&
Bolt
Torque
36
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