PUMP OVERHAUL - MODEL 45
This section contains an illustrated, step-by-step
square block of wood, 4" thick with a 2" round center
procedure for the complete disassembly and reassembly
hole, may be used as a platform upon which the pump
of the Dynapower Phase III, Model 45 and Model 60
may be positioned. A similar size hole in a work bench
pumps. Additional information for servicing Dynapower
surface may be utilized as can the corrugated cardboard
units no longer in production is included where
spacer packed at the end of a new Dynapower pump.
C. If complete disassembly is anticipated, the control
Service procedures for the Model 45 and Model 60 units
assembly must be removed.
are alike in all respects. Only when replacing the cover,
block, pistons, return plate, mounting flange and cam
D. When performing minor service work, do not remove
stop is it necessary that the displacement of the unit be
bearings, dowel pins or cylinder block components
known. Photographs are included, where necessary, to
unless they exhibit signs of galling, scratches, or
establish the identity of the units being serviced.
On major overhaul, replace all
Individual parts and numbers are available from your
bearings, seals, gaskets, tablocks (16), wear plates (20)
and bronze crescent clips (14).
ALL PART NUMBERS IN PARENTHESIS FOLLOWING
E. Upon completion of service operations, be sure to
THE PART NAMES REFER TO THE INDIVIDUAL
follow instructions in page 130 for restarting the system.
PARTS AS IDENTIFIED IN FIGURE 236 EXCEPT AS
1. Place the pump in a shaft down position. Remove
A. Dynapower parts and work area must be kept
hex bolts (11) and lock washers (6). Lift off charge pump
absolutely clean at all times. The Dynapower unit must
be cleaned externally with a commercial solvent or
steam and dried with compressed air before the unit is
Remove .charge pump inlet port plate (45), shim
removed from the application.
gasket(s) (43) and O-ring (44). See Fig. 236.
B. Most service operations are carried out with the
pump in a shaft down position. A seven inch