MAINTENANCE
WB140-2N, WB150-2N 3-67
DURING STORAGE
Start engine and move the machine a short distance once a month, so a new oil film covers all moving parts and surfaces of
components. Also, charge the battery if necessary.
AFTER STORAGE
★ If the machine is stored without carrying out the monthly rust-prevention treatment, have maintenance performed by your
Komatsu Dealer.
When using the machine after a long period of inactivity, proceed as follows:
1. Remove seals from the exhaust pipe and fuel tank.
2. Check all fluid levels (engine oil, coolant, fuel, hydraulic system oil).
3. Make sure that the battery charge is sufficient and install the battery.
4. Disconnect the engine stop solenoid.
5. Turn ignition key directly to the start position and keep it there until the engine oil pressure warning light goes out. This
operation serves to start the circulation of lubricating oil and carry out a first lubrication cycle.
6. Reconnect stop solenoid valve and start the engine. Let engine run at accelerated speed (approximately 1200 rpm) for
about 15 minutes.
7. While the engine is warming up, check tire pressure and remove protection grease from the hydraulic cylinder rods.
8. Before moving the machine, make sure that instruments, lights, direction indicators, and brake stoplight work properly.
9. Warm up the hydraulic cylinders, by slowly moving all the work equipment as soon as possible.
10. Move at low speed and brake a few times in order to increase oil viscosity and allow the braking surfaces to seat.
If it is necessary to carry out a rust-prevention treatment while the machine is kept indoors, open doors
and windows to increase ventilation and avoid poisoning by gas.
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