Komatsu PC1250-11, Original Instructions Manual

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2.
Check that the horn sounds immediately when the horn
switch is pressed.
3.
After checking, turn the starting switch back to OFF posi-
tion.
REMARK
Horn does not sound when the air tank is empty or water
drain valve is open. Check that the water drain valve is
closed. Check again that the horn sounds when the horn
switch is pressed 1 or 2 minutes after the engine is started.
If the horn does not sound, ask your Komatsu distributor for repair.
METHOD FOR ADJUSTING
METHOD FOR ADJUSTING OPERATOR'S SEAT
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WARNING
When adjusting the position of the operator's seat, always set the lock lever to LOCK position to pre-
vent any malfunction due to accidental contact with the control levers.
NOTICE
If the seat position is adjusted while the parts, tools, or empty cans are left around the operator's seat,
the peripheral parts or operator's seat may be damaged.
Check that there is no parts etc., around the operator's seat, and adjust the seat position.
• Always adjust the operator's seat before starting each operation or when the operators change shift.
• Adjust the operator's seat so that control levers and switches can be operated freely and easily with the
operator's back against the backrest.
METHOD FOR ADJUSTING SEAT IN FORE-AND-AFT DIRECTION
Pull up the fore-aft adjustment lever, set the seat to the desired
position, then release the lever.
Fore-and-aft adjustment: 160 mm (16 stages)
METHOD FOR RECLINING SEAT
The reclining of the seat becomes large when the seat is moved forward, and it becomes smaller as the seat is
moved backward. When moving the seat backward, return the reclined seat back to the original position.
Pull up the reclining adjustment lever and set the seat back to a
position which is comfortable for operation, then release the
lever.
REMARK
Sit with your back against the backrest when adjusting. If your
back is not touching the backrest, the backrest may suddenly
move forward.
OPERATION MACHINE OPERATIONS AND CONTROLS
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