OPERATION 3.2 CONSTRUCTION OF THE SHOVEL Legend for illustration Z22875 (1) Final drive, hub type travel gear (2) Crawler carrier (3) Track roller (4) Carrier roller (5) Guide wheel (6) Swing circle guard (7) Hydraulically operated access ladder, see page 46 for more information (8) Hydraulic cylinder for access ladder (9) Control switch for access ladder (10) Battery main switches (11) Emergency engine shut down switch and manuall actuator switch for the fire suppression system, if so equipped. Never stop the engines from a full load except in case of emergency.
If a hot engine is shut down without previous idling period of three to five minutes, the temper- ature in certain engine parts rising sharply after the cooling system ceases to function. The resulting thermal stress, especially in the turbo- chargers, may cause serious damage.
(12) Radiator of rear engine, designation number 1 (13) Radiator of front engine, designation number 2 (14) Sliding window of operator’s cab, see page 54 for more information (15) Emergency escape ladder, see page 50 for more information (16) Exhaust muffler (17) Engine air cleaners (18) Hydraulically driven grease pump of the Swing circle pinion Lubrication System (SLS) (19) Hydraulically driven grease pump of the Central Lubrication System (CLS) (20) Counterweight 41 CAUTION