Denison Hydraulics Goldcup Series, Информация о сервисе, Страница: 12 / 48

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PORT BLOCK See figure 8. Remove four screws (1) that secure the port block (2) to the housing (6). Use
caution when removing screws on valve block side to prevent marring valve block face.
Remove port block (2) and gasket (5). Remove port plate (4) and port plate pins (3).
Note: port plate will in some instances adhere to port block upon disassembly.
See figure 7. Remove the check valve assemblies (7) from the port block.
Remove needle bearing (2) from the port block.
Remove two screws (5), lockwashers (6), check rings (3), and clamps (4). Only one
check ring assembly in open circuit pumps.
BARREL AND AUXILIARY SHAFT
Remove face plate (2, fig. 6) from face of barrel assembly.
Remove the barrel assembly (1, fig. 4) by grasping the auxiliary shaft and lifting the com-
plete assembly out of the housing.
DRIVE SHAFT See figure 14. Remove the four screws (8) and gaskets (7). Remove seal retainer (6),
and the stationary part of the shaft seal (4). Refer to view of item 4.
Carefully remove the carbon ring and the remainder of the shaft seal from the shaft.
Caution: Do not scratch seal surface of shaft when removing seal.
Remove snap ring (3) and the shaft and bearing assembly (1). Remove shim (2).
HOUSING After shaft assembly has been removed, position the unit on end with the mounting
flange turned down.
Push the ends of the small tube lines away from the housing.
Lift the housing from the mounting flange, remove the gasket, and dowel pins from the
mounting flange.
Do not remove the roll pins and the bearing from the housing unless the bearing is dam-
aged and must be replaced.
See figure 4. Remove the complete assembly (5) from the mounting cap (7) and posi-
tion on a clean flat surface with the two tubes (2) in a horizontal position and located at
the top. Mark the cam (24) and cradle (20) as indicated in Figure 3. These marks will
determine positioning of parts during reassembly.
Carefully remove the small tube lines (3) and (4) from the cradle.
Caution: Do not bend these lines
See figure 3. Position the assembly in an upright position on the flat surface of the cra-
dle (20). Remove the retaining ring (1) and thrust washer (2). Remove the piston and
shoe assembly (4) and the creep plate (5) from the cam (24). Carefully remove the two
set screws (6a) and two screws (6) that secure the servo plate to the cam (24) and
remove the servo input parts (7, 8 and 9).
Remove the four 7/16" screws (10) and eight 1/4" screws (11) and (12) from the control
covers (15R) and (15L). Remove the four dowel pins (16) and remove the two chambers
(17). Remove the two special seals (18) and the four steel balls (19). Remove the two
vane seal cartridge assemblies (23) and the four holddown vanes (22) from the rocker
cam (24).
Remove the rocker cam (24) from the cradle (20).
Caution: Do not remove the plugs from the rocker cam.
Note: Some units may have thin shims under the holddown vanes.
ROCKER CAM AND CONTROL
STROKING ASSEMBLY
UNIT DISASSEMBLY
BARREL AND AUXILIARY SHAFT