Check And Tighten Track Shoe Bolts; Check Electrical Intake Air Heater - Komatsu Galeo D61EX-15 Operation & Maintenance Manual

SERVICE PROCEDURE

CHECK AND TIGHTEN TRACK SHOE BOLTS

If the machine is used with track shoe bolts (1) loose, they will
break, so tighten any loose bolts immediately.
METHOD OF TIGHTENING (TRACK SHOE BOLTS)
1. Torque the track shoe bolts to 539 ± 49 N·m (55 ± 5 kg·m, 398 ± 36.2 lb ft). Then ensure the nut and shoes are
in close contact with the link contact surface.
2. After checking, tighten a further. 120° ± 10°.
METHOD OF TIGHTENING (MASTER CONNECTING BOLT)
1. First tighten to a tightening torque of 343 ± 39 N·m (35 ± 4 kgf·m, 253 ± 29 lbft) then check that the link contact
surfaces are in close contact.
2. After checking the link contact surfaces, tighten the bolt by 180° (Allowable range: 0° - 20°).
ORDER FOR TIGHTENING
Tighten the bolts in the order shown in the diagram on the right.

CHECK ELECTRICAL INTAKE AIR HEATER

Before the start of the cold season (once a year), contact your Komatsu distributor to have the electrical intake air
heater repaired or checked for dirt or disconnections.
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MAINTENANCE
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