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311594Z 27
10. See F
IG
. 16. Rotate the crank arm (4) to allow it to
be removed from the output shaft (OS).
11. Pull the crank arm/connecting rod/slider piston
assembly (CR) up and out of the cylinder.
12. Remove the old bearings (8).
13. See F
IG
. 17. Install the two new bearings (8) on the
slider piston (9). The joints between the bearings
must align with the pin hole (PH) in the slider piston.
14. Slide the piston (9) and connecting rod (7) into the
cylinder (2).
15. Position the crank arm (4) to engage the output
shaft (OS), and rotate it to the bottom of the output
shaft.
16. Place a clean rag over the top of the slider cylinder
(2) to prevent debris from falling into the slider
assembly during reassembly.
17. See F
IG
. 15. Apply antiseize lubricant (LPS
®
-04110
or equivalent) to the threads of the cap screws (5).
Install the key (39), crank arm cap (38), and cap
screws (5), oriented as shown. While the gap-side
screw is still loose, torque the key-side screw to
210-230 ft-lb (283-310 N•m). Then torque the
gap-side screw to 210-230 ft-lb (283-310 N•m).
Torque screws an additional 2-3 times each, or until
they stop turning when torqued to 210-230 ft-lb
(283-310 N•m).
18. Ensure that the collars (13) are in place in the cou-
pling nut (14).
19. Place a 3/4 in. wrench on the flats of the slider pis-
ton (9), to keep it from turning when you are tighten-
ing the coupling nut (14). Orient the wrench so it is
braced against one of the tie rods (3) or the pump
stand. Tighten the coupling nut (14) onto the slider
piston (9) and torque to 75-80 ft-lb (102-108 N•m).
20. Install the shields (72) by engaging the bottom lips
with the groove in the wet-cup cap. Snap the two
shields together.
21. Remove the rag. Reinstall the cover (32 or 21) and
screws (12).
22. Repeat for the other side.
F
IG
. 16. Rotate Crank Arm
F
IG
. 17. Slider Bearings
ti9225b
4
CR
OS
ti8719a
7
9
8
8
PH