Komatsu Backhoe Loader WB140-2N

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.

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.

Engine valve clearance checked and adjusted

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.

CHANGING HYDRAULIC SYSTEM OIL AND CLEANING SUCTION FILTER

Steps to change hydraulic system oil and clean suction filter

CHANGING THE BRAKING SYSTEM OIL

Steps to change braking system oil

CHECKING ALTERNATOR AND STARTER

Alternator and Starter checked?

Steps to adjust fan belt tension

Steps to clean the outside of the radiator

CHECKING BATTERY ELECTROLYTE LEVEL

Steps to check battery electrolyte level

Steps to check front axle oil levels

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).