Komatsu — 4.7.8.g CHECKING THE WHEEL NUT DRIVING TORQUE

MAINTENANCE PLAN 190 RWA17150 2 DANGER • The level must be checked with running engine and trans- mission oil at operating temperature; be very careful, in order to avoid burns. • Let all the work equipment safety locks engaged, apply the parking brake and do not move the gearshift lever. • If it is necessary to add oil, stop the engine before open- ing the engine hood. The dipstick (1) can be reached through the opening obtained on the right side of the engine hood, which is protected by an in- spection plug (2). The level must be checked with engine running at 8001000 rpm and with the transmission oil at operating temperature.

The oil must always reach the maximum level mark, or in any case be very near it. To top up, use the filler of the dipstick (1) and the prescribed oil. (See “4.3 FUEL, COOLANT AND LUBRICANTS”). MAX. MIN.    MAX. MIN.    IMPORTANT • After the check, close the inspection cover (2) and lock it. This check serves to restore the correct driving torque of the wheels on the hubs. The driving torque must be checked by means of a dynamomet- ric spanner (1) set according to the values indicated in para- graph “4.4.2 SPECIFIC DRIVING TORQUES”. (Use a 27 mm spanner for the front wheels). (Use a 33 mm spanner for the rear wheels).

1 RWA03400 1 RWA03400 IMPORTANT • Do not increase the specified driving torque and keep it within the prescribed ranges. • When the driving torque must be checked, do not lubri- cate the thread.