Eaton Electrical 350 - Manual (Page 35)

35 EATON 350 Series Dual Path Mobile Pumps E-PUPI-TS006-E September 2007
Assembly
Front Pump
Assembly
Step 1
Turn the housing so that the
bearing bore faces up.
Step 2
Insert a roll pin 16026-610 into
the guide hole near the bearing
bore; tap it in firmly with a
rubber mallet.
Step 3
Insert 52mm tapered roller
bearing 5988197-001 in bearing
bore, with taper narrowing from
top to bottom; bearing cup
should rest on snap ring.
Step 4
Set the valve plate (Refer to
Item 18, page 5 for part number)
over the bearing bore, aligning
the notch with the roll pin.
Step 5
For a pump with left-hand
rotation, the front valve plate
should also have left-hand
rotation, and vice versa for
right-hand rotation. The valve
plates are labeled according
to direction.
REFERENCE VALVE PLATE
IDENTIFICATION ABOVE
Step 6
Insert roll pins 16026-810 in the
two guide holes for the gasket.
Tap them firmly in place with a
rubbermallet.
Step 7
Lubricate the valve plate and
each piston bore in the cylinder
barrel with clean hydraulic fluid.
Step 8
Center the cylinder barrel on
the valve plate with the brass
shoes facing up; apply clean
hydraulic fluid to the brass
shoes.
Step 9
Set the gasket 5989712-001 on
the roll pins.
Step 10
Insert the front pump shaft
through the rotating kit until it
engages the spline.
Step 11
Place a follower 4999637-001
over the dowel pin on one of
the swash arms.
Step 12
Lower the swash plate assembly
into the housing so that the flat
side of the plate rests on the
brass shoes, and the follower
fits in the groove on the servo
piston.
Note "V"
notch
locations
Valve Plate
Identification
Lefthand Rotation Righthand Rotation