Eaton Electrical 350 - Manual (Page 28)

28 EATON 350 Series Dual Path Mobile Pumps E-PUPI-TS006-E September 2007
Assembly
Mechanical
Servo Control
Assembly
Step 9
Align the center hole on the
feedback link with the dowel pin
on the control spool. Press the
feedback link (item 6) onto
the dowel pin until the end
of the dowel pin is flush with
the surface of the feedback link.
Step 10
Fit an O-Ring (item 4) under the
head of a threaded retaining
plug (item 3). Lubricate the
O-Ring.
Step 11
Align the 6.35mm groove in the
control input shaft with the
threaded hole on the control
housing.
Step 12
Insert the retaining plug (item 3)
in the threaded hole; make sure
the plug fits in the 6.35mm
groove. Tighten to 11 n/m (8 lb-ft).
Step 13
Fit an O-Ring (item 9) in the cen-
ter groove on a spool bore plug
(item 8). Insert the plug, thread-
ed end first, in the spool bore; it
should fit around the spring end
of the spool shaft sub-assem-
bly.
Step 14
Using adjustable-grip pliers, turn
the spool bore plug until there
is no play where the spool shaft
meets the feedback link. Adjust
tightness as needed; both
under-tightening and over-tight-
ening the plug will result in
unwanted play.
Step 15
Insert a 4.7mm set screw (item
10) in the threaded hole near
the end of the spool shaft port.
Tighten to 3 n/m (2.2 lb-ft).
Step 16
Fit a control input shaft seal
(item 5) over the exposed end
of the control input shaft; using
a seal installation tool, press
down on the seal until it is flush
with the face of the input shaft
port. (Note: If necessary, use a
shaft coupler to press the seal
into place).
5
6
2
3
10
4
1
7
8
9
1 1 Housing, Control
2 1 Input Control Shaft Sub-Assembly
3 2 Plug
4 3 O-Ring
5 1 Seal, Shaft
6 1 Link, Feedback
7 1 Spool Sub-Assembly
8 1 Plug
9 1 O-Ring
10 1 Set Screw
REF PART NO. QTY. DESCRIPTION