Komatsu Backhoe Loader WB150-2N

Warning: Oils, filters, coolant, and the battery are considered special waste and must be collected and disposed of according to all anti-pollution regulations in force.

Perform this operation with the machine positioned on level ground and at operating temperature.

Hydraulic transmission oil changed

Hydraulic transmission filter changed

Warning: After operating machine, the transmission unit becomes very hot and may cause burns. Let the machine cool down before changing the filter.

Warning: Oil that may be spilled during replacement of the filter may cause the floor to become slippery: use anti-social shoes and immediately remove any trace of oil from the floor and transmission unit.

Change the filter every time transmission oil is changed.

Warning: Perform this check with the machine parked on level ground and loader arm raised with the safety lock engaged

Lubricating front axle joints central coupling

Sign off on the 50 Hourly Backhoe Loader Maintenance

Note: This maintenance procedure is only for machines in which synthetic biodegradable oil type HEES is used.

The following maintenance operation must be performed after the first 500 hours of operation, together with maintenance operations to be initiated EVERY 500 HOURS.

HYDRAULIC OIL CHANGE AND SUCTION FILTER CLEANING

Was the suction filter cleaned?

For further details on various maintenance operations, See MAINTENANCE EVERY 2000 HOURS OF OPERATION on page 3-51.

Sign off on the initial 500 hours backhoe loader maintenance

LUBRICATING JOINTS (GREASE FITTINGS)

Clean the grease fittings before attaching the grease pump.

After lubrication, remove all the contaminated grease that may have spread out of the fittings.

If the machine is used in difficult conditions, perform these operations more frequently than usual.

This maintenance operation must be done with front bucket resting on the ground, and backhoe equipment completely extended and resting on the ground, as indicated in the graphic.

Use the prescribed grease pump/grease. (See ìFUEL, COOLANT, AND LUBRICANTSî on page 3-7 and See ìLUBRICATION DIAGRAMSî on page 3-12).

★ As a general rule, it is important to consider that each cylinder is provided with two grease fittings positioned on the couplings and that each pin serving as fulcrum point for movement is provided with at least one grease fitting.

CHECKING, CLEANING, OR CHANGING AIR CLEANER CARTRIDGE

Remove the air cleaner only after stopping engine, and do not start engine after the air cleaner is removed.

Always wear safety goggles during cleaning operations.

★ The air filtering system consists of a primary filtering element with considerable capacity and of a secondary cartridge that ensures additional safety protection.

★ The primary element can be cleaned with compressed air, while the cartridge must be replaced.

★ The filter must be cleaned when the clogging warning light (A) positioned on the side dashboard comes on or flashes.

The air cleaner can be reached after raising the loader arm, engaging the mechanical safety lock and opening the engine hood.

To clean the primary element, proceed as follows: