Komatsu — 6.5.4.1 ADJUSTING THE GUIDE SLACK

BACKHOE TELESCOPIC ARM 226 CAUTION 5 mm • If the adjusting dowels (9) protrude to the same extent on the two sides, the operation described at point 6 can be carried out either on the right or left side. 6 - Loosen the four lock nuts (10) and tighten the adjusting dow- els (9) thoroughly, until taking up the slack completely. (Use a 27 mm spanner and a 8 mm hexagon spanner). 7 - Starting from the central positions, loosen the adjusting dow- els (9) by 270° (3/4 turn) and lock them with the lock nuts (10). 8 - Start the machine, extend and retract the telescopic arm more than once to make sure that it slides correctly.

Shoe to be changed RWA04050 10 9 Reducing clearance RWA03950 Shoe to be changed RWA04050 CAUTION • The wear limit allowed for the shoes is represented by the minimum engagement of the adjusting dowels (9) in the lock nuts; the shoes must be replaced when the heads of the dowels (9) are 5 mm back with respect to the lock nuts (10). • Do not take up the slack completely, to prevent the guides from seizing. 10 9 270° Clearance = 0 RWA03850 10 9 RWA03600