Komatsu PC5500-6 Operation & Maintenance Manual page 387

MAINTENANCE
High-Strength Bolt Connections (continued)
Check mounting of Operator's cab, illust. Z 22663
Check tightening torque of mounting bolts as indicated in the
illustration.
Check condition and fastening of chains (1).
Check the silicone oil filled viscous mounts (2) for leakage
and signs of fatigue.
4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH
387