MOTOR OVERHAUL -MODEL 48
This section contains an Illustrated step-by-step
procedure for the complete disassembly, overhaul and
reassembly of the Dynapower Models 48 and 60 Phase
A. Dynapower parts and work area must be kept
III fixed motor Additional information for servicing
absolutely clean at all times The Dynapower unit must be
variable motors, as well as models no longer in
cleaned externally with a commercial degreaser or steam
production is included where applicable.
and dried before hoses are disconnected and before the
unit Is removed from the application.
Service procedures for the Model 48 and Model 60 units
are alike in all respects. Only when replacing the cover,
B. Most service operations are carried out with the
block, pistons, return plate, mounting flange and cam
motor in a shaft down position. A seven inch square
stop is it necessary that the displacement of the unit be
block of wood, four inches thick with a two inch round
known. Photographs are included where necessary to
center hole may be used as a platform upon which the
establish the identity of the units being serviced.
motor may be positioned.
Individual parts and numbers are available from your
A similar size hole in a work bench surface may be
utilized as can the corrugated cardboard spacer packed
at the end of a new Dynapower motor.
FOLLOWING THE PART NAMES REFER TO THE
C. When performing minor service work, do not remove
INDIVIDUAL PARTS AS IDENTIFIED IN FIGURE 235
bearings, dowel pins, or cylinder block components
EXCEPT AS NOTE
unless they exhibit signs of galling, scratching, or
excessive wear On major overhauls, replace all bearings
regardless of condition.