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Repair
3A0019J 11
Pump Assembly
NOTE: Piston assembly tool is NOT needed for
10cc-15cc pump sizes.
1. Install piston seal installation tool (PT) from pump
repair kit on displacement rod (15). Hand tighten.
2. Apply grease to seal and bearing surface of dis-
placement rod (15).
3. Install u-cup (17) and bearing (16). Ensure u-cup
springs face displacement rod. Remove piston seal
installation tool (PT).
4. For 20cc-50cc pumps: Apply one stripe of remov-
able strength thread locker to displacement rod (15)
male threads and install piston retainer (14).
5. For 5cc, 10cc, 15cc, and 60cc-160cc pumps: Apply
one stripe of removable strength thread locker to
piston retainer (14) threads and assemble.
6. Clamp flats on seal end of displacement rod (15) in
vise. See Torque Specification table for piston
retainer (14) torque according to pump size.
NOTICE
To prevent cross-contamination of the equipment’s
wetted parts, never interchange component A (isocy-
anate) and component B (resin) parts.
NOTICE
To prevent damage to seals always use piston
assembly tool (PT) and rod installation tool (RT) from
repair kit when assembling the piston seals and dis-
placement rod.
NOTICE
Specification sheets and Graco testing indicate that
anaerobic sealant requires three days to fully cure.
Failure to allow three days for full cure may result in
parts coming loose during operation. If faster cure
time is needed, Rapid Sealant Cure Kit is available,
24N985.
16
14
17
15
PT
NOTICE
Specification sheets and Graco testing indicate that
anaerobic sealant requires three days to fully cure.
Failure to allow three days for full cure may result in
parts coming loose during operation. If faster cure
time is needed, Rapid Sealant Cure Kit is available,
24N985.
NOTICE
To prevent displacement rod damage, do not clamp
directly onto displacement rod surface.
Pump Size Torque
5cc 38 in-lbs (3.2 ft-lbs) (4.3 N•m)
10cc 5.5 ft-lbs (7.4 N•m)
15cc 5.5 ft-lbs (7.4 N•m)
20cc 30 ft-lbs (40.6 N•m)
25cc 30 ft-lbs (40.6 N•m)
30cc 30 ft-lbs (40.6 N•m)
40cc 50 ft-lbs (67.5 N•m)
50cc 50 ft-lbs (67.5 N•m)
60cc 80 ft-lbs (108 N•m)
65cc 80 ft-lbs (108 N•m)
75cc 80 ft-lbs (108 N•m)
80cc 80 ft-lbs (108 N•m)
86cc 80 ft-lbs (108 N•m)
100cc 160 ft-lbs (216 N•m)
120cc 160 ft-lbs (216 N•m)
160cc 160 ft-lbs (216 N•m)
14
16
17
15
PT
60cc-160cc pumps
16
14
17
15
5cc, 10cc, and 15cc pumps