. MAINTENANCE SERVICE PROCEDURE CHECK WEAR OF FRONT DISC BRAKE PADS WARNING (1). inspection gauge stepped portion The wear limit where stepped portion (3) of gauge (2) contacts pad (5). Left and right wheels are not always the same in terms of the 4 - 69 Check the wear of the disc bra kes carefully. If the disc exceeds the wear limit , the braking distance wil l become longer and it may become im possible to stop th e machine within the de sired distance. Th is may lead to serious person al injury. Perform i nspection EVER Y 250 HOURS if the w ork site is covered by lots of earth and sa nd if it is at the location where the foot brake is fre 1. Install 2.
Chec gauge and calip caliper (4) is 3 mm (0.1 in) (remaining thickness o f pad), so repla (A):Near (B):Wear limit reached, so After the i nspection, if it is necessary to change the pad, contac t your Komatsu distributor amount o f wear of the pad . So, perform the insp ection for both l and right. If either side sho ws the wear limit, be s ure to change 8 If the wor k is performed o n the muddy and wate ry ground, the mud sticks to caliper or dis c. Leaving the mud will increase t he wear of pad, so wash out thoroughl y with water.