Repair
16
3A5266D
Pump Lower Reassembly
See Oil and Grease Parts, pages 18 and 20.
NOTE:
Pump Lower Soft Seal Kit 17T654 is available (see page
30). Parts marked with ‡.
Hard Parts and Seal Kit 17T655 is available (see page
30). Parts marked with
.
For best results, use all of the parts in the kit.
1.
Press bearing (5
) into the pump cylinder (11
).
2.
Install two o-rings (6‡
) around pump cylinder
(11
).
3.
Install shovel seal retainer (10
) on piston shovel
rod (12
).
4.
Lubricate o-ring (7‡
) and install on the end of the
shovel seal retainer (10
).
5.
Install intake seal (17‡
) on the shovel rod (12
)
(F
IG
. 21).
NOTE:
When installed correctly the flat end of the
intake seal (17‡
) meets the flat surface of the
shovel rod retainer (10
). The jagged end of the
intake seal will be facing the piston rod (19).
6.
Install piston seal (18‡
) to piston rod (19
).
7.
Clean threads of piston rod (19
) and alignment rod
(13
) with solvent to prepare it for thread locking
compound (F
IG
. 21).
8.
Apply oil resistant, thread locking compound (user
supplied) to threads of piston rod (19
) and align-
ment rod (13
). Screw the two rods together.
Torque to 25-35 ft-lbs (34 to 47.5 N•m).
NOTE:
-
It may be easier to assemble the two parts by
clamping the piston rod in a vise. Take care
when clamping the rod in vise to not
over-tighten the vise around the rod which could
damage the rod or scratch the outside surface.
Clamp only on recessed surface of piston rod
(19).
-
If using a vise, to prevent the rod from rotating
while torquing the two parts. insert a pin that is
longer than the spring pin (20) through the pin
holes.
9.
Screw shovel rod (12
) into piston rod (19
).
Tighten until pin holes in each rod (F
IG
. 21) align.
10. Install spring pin (20‡
) through holes aligned in
Step 6 (F
IG
. 21).
11. Install piston rod (19
) and shovel rod (12
)
assembly inside pump cylinder (11
).
12. Install bearing (5
) in seal retainer (9
).
13. Lubricate wiper seal (4‡
) and install in the seal
retainer (9
).
NOTE:
The lips of the wiper seal (4‡
) should be
facing out; toward the piston shovel rod (12
).
14. Lubricate o-ring (6‡
) and install o-ring around the
seal retainer (9
).
15. If the H-wiper seal (3‡
) was removed in Pump
Lower Disassembly, Step 7, page 15, lubricate new
seal from kit and install it in pump base (2).
NOTE:
The lips of the H-wiper seal (3‡
) should be
facing in; toward the pump cylinder (11
).
F
IG
. 21
20
18
ti31788
12
10
6
17
13
19
‡
‡
7
‡
‡
‡
F
IG
. 22
3‡
11