Komatsu GD555-5 Operation & Maintenance Manual page 137

OPERATION
9. Check for problem in gauges, monitor.
Check for problem in the gauges and monitor in the operator's cab. If any problem is found, replace the parts.
Clean off any dirt from the surface.
10. Check for damaged mirror, reflector, loose mounting bolts
Check that there is no damage to the mirror or reflectors, and replace if there is any problem. Tighten any loose
bolts.
Clean all dirt from the surface of the mirror and reflector.
11. Check for damage to the seat belt and mounting clamps.
Before fitting the seat belt, check that there is no problem in the belt mount bracket or mounting belt. If it is worn or damaged,
replace the seat belt.
Even if there are no signs of damage, replace belts in accordance with the following schedule:
5 years after the date of seat belt manufacture, or every 3 years after the start of actual usage, whichever date comes first.
Always wear the seat belt during operations.
Fit the seat belt so that it is not twisted.
REMARK
The date of seat belt manufacture attached to the seat belt is the
start of the 5-year period. It is not the start of the 3-year period of
actual usage.
REMARK
The date of manufacture of the seat belt is marked on the belt at the
place indicated by the arrow in the diagram on the right.
Check that there are no loose bolts on the equipment mounting the
seat belt to the machine, and tighten if necessary.
Tightening torque: 27 to 34 Nm (2.8 to 3.5 kgm, 20 to 25 lbft)
If the belt is damaged or fluff is starting to form, or if there is any
damage or deformation of the seat belt holders, replace the seat
belt.
12. Is door lock normal?
Check that there is no damage to the cab door lock. Repair or replace if any problem is found.
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WARNING
OPERATION