PRIMARY HYDRAULIC PUMP OPERATION

OPERATING THE APU - Continued - TM-9-2350-267-10_162

PRIMARY HYDRAULIC PUMP OPERATION - Continued

TM-9-2350-267-10 Carrier Personnel Full Tracked Armored M113A2 2350-01-068-4077 Carrier Command Post Light Tracked M577A2 2350-01-068-4089 Manual
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TM 9-2350-267-10 PRIMARY HYDRAULIC PUMP OPERATION CAUTION Primary and backup pumps should not be operated at same time. Hydraulic system damage may result. NOTE The M992 uses either a primary or backup pump to provide power for operation of the stacker, conveyor and upper rear door (ballistic shield). The primary pump is driven by the APU; the backup pump is driven by the vehicle main engine. The primary pump should be used during normal operation. The backup pump should be reserved for emer- gency use. For backup pump operation see page 2-236. Operating the Primary Pump CAUTION Be sure hydraulic reservoir ball valve (1) is OPEN be- fore turning hydraulic pump on. Hydraulic system damage will result from operating pump with ball valve closed. 1. Check to see that hydrau- lic resevoir ball valve (1) is OPEN. 2-129

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