UMP Replacement Instructions
Replacing the UMP for the Red Jacket STP
8
Figure 1. Identifying UMP Models By Their End View
Replacing the UMP for the Red Jacket STP
Disconnect, lock out, and tag power at the panel before starting to
service the pump.
When servicing equipment, use non-sparking tools and use caution when removing or
installing equipment to avoid generating a spark.
Kit Required:
• Hardware/Seal Kit, P/N 410154-001
• Die Spring Kit, P/N 410485-001 (P/N 410906-001 for RA models)
1.
If a ball valve is installed down line from the pump, close it.
2.
Remove the two extractable lock-down nuts and discard them (see Figure 2). The springs on the lock-down
studs between the extractable’s flange and the manifold will push the extractable up, breaking the seals.
X4AGUMP150S3, X4UMP150U3
40 psi (275 kPa) .74 SG @ 60°F (15°C)
X4AGUMP150S17, X4UMP150U17
39 psi (267 kPa) .74 SG @ 60°F (15°C)
AGUMP200S1-3, UMP200U1-3
43 psi (297 kPa) .74 SG @ 60°F (15°C)
AGUMP200S3-4, UMP200U3-4
43 psi (297 kPa) .74 SG @ 60°F (15°C)
AGUMP200U17-4, UMP200U17-4
43 psi (297 kPa) .74 SG @ 60°F (15°C)
AGUMPL200S1-3, UMPL200U1-3
36 psi (248 kPa) .74 SG @ 60°F (15°C)
Table 6. Approximate Pump Shut-Off Pressures
UMP Model
Approximate Shut-Off Pressure
UMP End View A
UMP End View B
053-2
WARNING
OFF