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Operation
28 333309E
8. Reconnect the suction tube assembly.
Adjust Pump Assembly for Balanced Yoke
Forces
At each ratio setup the pump assembly must be
adjusted to balance the yoke forces. To adjust the pump
assembly:
1. Loosen mounting plate screw (44, 2 locations)
2. Loosen yoke bolts (33, 2 locations).
3. Loosen Tie rod nuts (14, 4 locations)
4. Slide the yoke (32) until the desired ratio marks on
the yoke (32) align with the center line mark on the
connector (31). See Detail A.
5. Remove yoke assembly screws (33, 2 locations),
clean threads and apply medium strength thread
adhesive. Re-install screws (33, 2 locations) and
tighten the yoke assembly screws (33, 2 locations),
while maintaining the mark alignment. Torque to 40
lb-ft (47-54 N•m).
6. Position the fluid assembly vertically under the yoke
and tighten the tie rod nuts (14), ensure washers
(15) are in place. Torque to 45 lb-ft (68-80 N•m).
7. Re-tighten mounting bracket screws (44) and torque
to 35 lb-ft. (47 N•m)
Cycle the pump slowly and observe up and down stroke
changeover verifying correct operation. If binding is
observed, re-align fluid pumps by repeating step 6.
NOTE: 1:1 and 6:1 ratios have yoke and pump posi-
tioned against yoke and plate slot ends. Adjusted full left
or right positions.
NOTICE
Verify that fluid pumps are aligned vertically under the
yoke position. If they are not aligned correctly, side
loading of motor and fluid pumps will occur, causing
premature wear to seals and bearings.
23
29
15
36
44
24
22
32
33
38
14
37
See Detail A
Detail A
32
31