Komatsu PC22MR-3 Operation & Maintenance Manual page 144

Hydraulic excavator
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USE OF THE MACHINE AND RELATED CONTROLS
Mirror (B)
q Adjust the angle so that the rear panel of the machine is
reflected on the mirror.
Mirror (C)
q Adjust the angle so that the operator is able to see a
person who is standing on the ground, and 1 m behind the
machine from the operator's seat.
(W):1 m
Seat belt
q Before fastening the seat belt, make sure that the fastening brackets or the belt itself do not show any
anomaly. If there are damaged or worn parts, change the belt.
q The safety belt can be replaced also if there are not failures or wear signs according to the following
program.
After 5 years from the production date indicated on the belt back or every 3 years from first use,
whichever is the shortest period.
q Adjust and fasten the seat belt before operating the machine.
q Always fasten the seat belt when working with the machine.
q Make sure that none of the two parts of the belt is twisted.
Make sure that the screws that fasten the belt to the frame are not loose. If necessary, apply a tightening torque of
24.5 ± 4.9 Nm (2.5 ± 0.5 kgfm).
If the surface of the belt is damaged or if the couplings are broken or deformed, change the belt assembly.
Fastening and unfastening the seat belt
1. Adjust the seat in such a way as to ensure that there is
sufficient knee room when pressing the pedal thoroughly
while seated, with the back resting against the backrest.
2. After adjusting the seat, seat correctly and insert the tang
(2) in the buckle (1). Pull the belt to make sure that the tang
is securely locked in the buckle.
3. To unfasten the belt, press the button at the top of the
buckle (1).
Fasten the belt without twisting it.
Adjust the belt length by proceeding as indicated below.
3-56
WARNING
WEAM014500
FUNCTIONING
RKA33670

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