Komatsu 930E-2 Shop Manual page 67

Dump truck w/ cummins qsk60 engine
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d. Check exposed portions of all hydraulic cylin-
der rams for rust, pitting and corrosion. If plat-
ing is deteriorated, the cylinder should be
removed and overhauled or replaced; pitted or
scored plating will cause leakage at the cylinder
seals.
8. Check front wheel hub, final drive and wheel axle
lubricant. If contamination is suspected, oil should
be drained completely and the component serv-
iced with clean prescribed lubricant. If major con-
tamination is present, disassembly and overhaul
will be in order.
9. Check parking brake. Since it is spring applied, the
brake pads may be stuck tightly to the disc; it may
be necessary to remove and overhaul the parking
brake assembly.
10. Lubricate all grease fittings with prescribed lubri-
cants which are not part of the automatic lubrica-
tion system. Pay particular attention to the steering
linkage connections. All pivot points must be free
of any binding.
11. Check battery charging alternator for corrosion or
deterioration. Alternator rotor must be free, with no
binding or roughness. Inspect, install and properly
tension the alternator drive belts.
12. Check security of steering cylinder ball joints link
and hydraulic connections.
13. Examine Hydrair suspensions for signs of dam-
age.
a. Discharge nitrogen from suspensions as out-
lined in the service manual. Check conditon of
suspension oil and cylinder wipers. If wipers are
cracked or hardened, the suspension must be
rebuilt. Recharge suspension with new oil if old
oil is deteriorated.
b. Check exposed chrome portions of cylinder for
rust, pitting and corrosion. If plating is deterio-
rated the suspension should be removed and
overhauled or replaced; pitted or scored plat-
ing will rapidly cause leakage at the seals.
c. Recharge suspensions as outlined in the serv-
ice manual.
14. If not previously done, install fully-charged batter-
ies and insure that hook-up is correct.
A07003
Storage Procedures
A7-7

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