| Tweet |
Custom Search
|
|
|
||
 TM 55-1905-220-14-7
3-206. HYDRAULIC CUB PUMP UNIT - HYDRAULIC PUMP - MAINTENANCE INSTRUCTIONS (Cont).
(6) The pump cam ring is shaped so that the two pumping chambers are formed diametrically opposed.
Thus, hydraulic forces which would impose side loads on the shaft are cancelled.
(7) The pressure plate seals the pumping chamber. A light spring holds the plate against the cartridge until
pressure builds up in the system. System pressure is effective against the area at the back of the plate, which is
larger than the area exposed to the pumping cartridge. Thus, an unbalanced force holds the plate against the
cartridge, sealing the cartridge and providing the proper running clearance for the rotor and vanes.
3-3200
|
||
|
||
