Komatsu Komatsu Backhoe Loader WB150-2N WB150-2N

Perform these operations together with those initiated every 50 HOURS and 250 HOURS.

WARNING:Change the oil with machine parked on level ground and raised loader arm with the safety lock engaged.

After machine has been operated, the engine oil is very hot and may cause burns; let the engine cool down until it reaches a temperature of 40-45° C (104-113° F) before draining the oil.

Oil that may be spilled during the change makes the ground slippery, therefore, use anti-slip shoes and immediately remove any trace of oil from the floor.

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

When changing engine oil, also change the filter,(See ìCHANGING ENGINE OIL FILTERî on page 3-42).

If Synthetic Biodegradable oil is used, change the filter after the first 50 hours of operation.

For new machines using regular oil, change the filter after the first 100 and 150 hours of operation.

For successive changes, adhere to the schedule provided.

Sign off on the hydraulic oil filter change

CHANGING HYDRAULIC SYSTEM OIL AND CLEANING SUCTION FILTER

CHANGING THE BRAKING SYSTEM OIL

CHECKING ALTERNATOR AND STARTER

Alternator and Starter checked?

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:

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.