SER 6713-4
High-Pressure Bucket Pump
Revision (2-02)
10
Alemite Corporation
Troubleshooting Chart
Gun Indications
Possible Problems
Solution
Pump will not prime
1. Foreign material between Valve (36) and
Valve Seat (35)
2. Worn or damaged Valve (36) and/or Valve
Seat (35)
1. Disassemble Pump Tube and
eliminate foreign material
2. Replace Valve (36) and/or Valve
Seat (36)
Pump lacks pressure
1. Bleed Valve Screw (26) in the open position
(not seated)
2. Pressure Relief Valve Screw (29) in the
open position (not seated)
3. Worn Plunger (18) and/or bore in Body (20)
1. Tighten Bleed Valve Screw (26)
into Body (20)
2. Tighten Pressure Relief Valve
Screw (29) into Bushing (28)
3. Replace Plunger (18) and/or
Body (20)
Pump does not hold pressure
(pressure falls when lever is raised)
1. Foreign material between Ball (46) and Ball
Seat (44) in Check Valve Assembly (22)
2. Worn or damaged Ball (46) and/or Ball Seat
(44)
1. Disassemble Check Valve
Assembly (22) and eliminate
foreign material
2. Use Repair Kit 398954-1
External Leakage
Product leakage visible at top of
Body (20)
Worn or damaged O-Ring(s) (19)
Use Repair Kit 398954-1
Product leakage at Check Valve
Assembly (22)
Check Valve Assembly (22) not sufficiently
tight and/or incorrect or no sealant
Apply thread sealant * to Check
Valve Assembly (22) and tighten
into Body (20)
Product leakage visible at Plug (32) 1. Plug (32) loose
2. Worn or damaged Gasket (31)
1. Tighten Plug (32)
2. Replace Gasket (31)
Product leakage visible at delivery
system components
Initial tightening of components not sufficient
and/or incorrect or no sealant
Apply thread sealant* to
component and tighten securely
* Do not apply thread sealant to the first two (2) threads. Contamination can occur.
Changes Since Last Printing
Revised Exploded View
