Bulletin 2751-001-M1/USA
Service Manual
HGA Hydraguide™
Hydraulics
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, Tennessee
21
Assembly Procedure
18. Assemble spacer plate (29) over assembly posts
and onto housing (25) with plain side up. (See
Figure HGA-23).
19. Install rotor set (31) over assembly posts and onto
spacer plate (29). Note: One of the seven holes
in the rotor set may be smaller than the other
six holes. Position this hole, if applicable, over
one of the assembly posts. (See Figure HGA-
24). Warning: All vane springs (31C) must be
down in their slots with no part of spring
protruding out either side of metering element.
Figure HGA-22
Figure HGA-23
Figure HGA-24
Figure HGA-25
20. Install manifold (32) over assembly posts and onto
rotor set (31), make sure circular slot side of
manifold is up. (See Figure HGA-25).
21. Install commutator ring (33) over assembly posts
and onto manifold (32), make sure slot side is
down. (See Figure HGA-26).
22. Install rotor seal (36) and seal retainer (35) over
rotor set (31) and down against housing.
23. To allow for washer (37) assemble commutator
(34) with counterbore up into commutator ring (33)
with slotted hole in commutator engaging nose of
drive link (30). Align commutator outside diameter
concentric with inside diameter of commutator ring.
(See Figure HGA-27).
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