. OPERATION OPERATION CHECK EMERGENCY STEERING switch (1) ON, and check that the If the steering wheel cannot be operated, ask your Komatsu distributor. REMARK a 5. Check that the emergency steering motor is actuated 1 second after the parking brake switch (3) is set to the TRAVEL position and that the steering wheel can be operated. emergency steering is actuated automatically in the 3 - 77 Check manual emergency steeri 1. Turn starting switch to th 2. Turn emergency steerin steering wheel can be o The emergency steering 90 seconds.
When using the emer maximum speed of 5 km/ When the machine is stop ped, if the starting switch is t urned t the ON position with the parking brake switch at the T RAVE position, the auto-emerge ncysteering is actuated automaticall after 1 second, so alway s set the parking brake switc h to th N. PARKING position before turning the starting switch O Check auto-emergency steering to emergency steering) pressure caution lamp is off. r (2) fully and stop the engine. to ON position. (Machines equipped with au 1. Start the engine. 2. Check that the brake oil 3. 4. Pull retarder control leve Turn starting switch key REMARK On machines equipped with following cases.
When the steering hydra When the engine stops d uring travel, dumping, or othe On I f the emergency steering is actuated, stop the machine i mmediately and carry out insp ection. When the machine is stoppe d, if the starting switch is turn ed to th e ON position with the parking brake switch at the TRAVEL position, the auto-e mergency steering is actuate d automatically after 1 second , so always set the parking brake switch to the PARKIN G position before turning the starting switch ON. CHECK BACKUP ALARM 1. Turn starting switch to th 2. Place the gear shift leve 3. Check that the backup a