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Parts
Pump Lower (25C964)
112
134
140
120
119
114
110
111
108
107
121
113
124
123
115
106
NOTE: Apply clear, liquid petrolatum to threads, o-rings,
and seals.
NOTE: Tighten lock nut (119), keeping mounting plate
(12) within +/- 0.060 in. (1.5 mm) of being flush with
housing (11).
Torque to 25-35 ft-lb (34-47 N•m).
4
Torque to 90-110 ft-lb (122-149 N•m).
5
Apply medium strength thread-locking fluid to
8
threads.
Assemble plate (120) within +/- 0.060 in. (1.5
11
mm) of being flush with housing (11), with 1 npt
hole in line with flats on plate (120).
Torque to 190-210 ft-lb (258-285 N•m).
12
32
Ref.
Part
102
17G456 CLAMP, double-bolted, 4 in.
103
16U796 HOUSING, inlet
104
17K490 STOP, ball, with pins
105
16U798 CYLINDER, pump
102
106
16U799 VALVE, piston
107
16U800 HOLDER, valve piston
108
16U801 STOP, upper ball
109
16V143 HOUSING, inlet, 2 in. cam and
135
110
17G220 HOUSING, outlet
111
16U804 ROD, displacement
105
112
16U805 NUT, packing
113*‡◆ -----
114‡◆ 16W492 BEARING, steel, throat (3-pack)
115‡◆ 16W491 PACKING, cup, piston (3-pack)
119
16U977 NUT, jam
135
120
16U976 PLATE, mounting, cylinder
121‡◆ 16W519 PACKING, o-ring, solvent-resis-
102
122†‡◆ -----
123‡
102973 BALL, hardened stainless steel
124*
-----
104
125‡
112420 BALL, hardened stainless steel
125
126†
-----
134
-----
122
135‡◆ 16W490 PACKING, o-ring, cylinder
126
140▲
15H108 LABEL, pinch point
103
▲ Replacement Danger and Warning labels, tags, and
cards are available at no cost.
109
*
Parts included in Piston Seat Repair Kit 16W509
(purchase separately).
† Parts included in Inlet Seat Repair Kit 16W510
(purchase separately).
‡ Parts included in Pump Rebuild Kit 16W508
(purchase separately).
◆ Parts included in Soft Seat Rebuild Kit 24U173
(purchase separately).
----- Not for sale.
Description
groove
O-RING, PTFE, 35 mm x 2.5 mm
tant (6-pack)
O-RING, 50 mm x 2.5 mm
(3-pack: 16W493)
SEAT
(3-pack: 16W494)
SEAT
LABEL, identification
(10-pack)
Qty.
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
2
1
3A5275B
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