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Repair
28 311594Z
Drive Linkage Rebuild Kit 15H873
NOTE: Drive Linkage Rebuild Kit 15H873 includes parts
to rebuild one drive linkage assembly. Order two kits to
rebuild both drive linkage assemblies. Use all the new
parts in the kit. The kit includes manual 311598.
NOTE: Replace the wrist pin bearings (7a) in the con-
necting rod annually. Wrist Pin Replacement Kit 255216
includes parts to replace the wrist pin bearings on both
drive linkage assemblies. Use all the new parts in the
kit. The kit includes manual 311609.
1. Jog the motor to bring the pump on the side being
repaired to the bottom of its stroke. This provides
access to the coupling nut (14).
2. Relieve pressure, page 9.
3. Shut off electrical power to the unit.
4. Disconnect the drive linkage. See steps 4-12 on
pages 26-27.
5. See F
IG
. 18. Orient the new connecting rod (7) and
slider piston (9) as shown. Assemble the crank arm
(4), retaining rings (6), pin (10), and retaining ring
(11).
6. Every 6 months, lubricate the wrist pin bearing (7a)
on the connecting rod with 1 shot (1 cc) of 107411
Grease or equivalent, using grease zerk (GZ). The
top bearing is prelubricated and does not require
grease at installation.
7. Reconnect the drive linkage. See steps 13-21 on
page 27.
8. Repeat for the other side.
F
IG
. 18. Drive Linkage Assembly
ti8717a
7
6
4
9
10
11
8
8
GZ
7a