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OPERATION
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 manual 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 tem-
perature in certain engine parts rising sharply after the cooling system ceases to function.
The resulting thermal stress, especially in the turbochargers, 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
(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
The chambers of the counterweight are filled with a mixture of concrete, granulated ore
and steel pellets. This mixture can create explosive gases which will accumulate in the
chambers of the counterweight. Before any welding, flame-cutting, grinding or drilling pro-
cedures are carried out on the counterweight it is vital to expel these gases from the coun-
terweight chambers. Failure to properly expel the gases from the counterweight chambers
can result in an explosion with serious personal injury or death.
Follow the instructions given in PARTS & SERVICE NEWS No. AH04518 for expelling the
gases from the counterweight chambers.
CAUTION
WARNING
3.2 CONSTRUCTION OF THE SHOVEL
41
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