High-Pressure Grease Pump
SER 7175-R4
Alemite, LLC
29
Revision (2-13)
Troubleshooting Chart - Continued
Pump Indications
Possible Problems
Solution
External Leaks
Product leakage visible at
Pressure Switch Assembly (
101
)
1. Clamp Bolt (
98
) not sufficiently tight
2. Worm or damaged O-Rings (
100
)
3. Damaged Gasket (
99
)
4. Pressure Switch Plug (
108
) not sufficiently tight
5. Damaged Gasket (
109
)
6. Screw (
110
) not sufficiently tight
7. Worm or damaged Packings (
112
) and /or (
113
)
8. Damaged Gaskets (
114
) and/or (
116
)
1. Tighten Clamp Bolt (
98
)
2. Replace O-Rings (
100
)
3. Replace Gasket (
99
)
4. Tighten Plug (
108
)
5. Replace Gasket (
109
)
6. Tighten Screw (
110
)
7. Replace Packings (
112
) and /or (
113
)
8. Replace Gaskets (
114
) and/or (
116
)
Product leakage visible at Valve
Body (
88
)
1. Valve Body Screws (
80
) not sufficiently tight
2. Damaged Gasket (
89
)
3. Clamp Bolt (
98
) not sufficiently tight
4. Bleed Screw Adapter (
104
) not sufficiently tight
5. Damaged Gasket (
105
)
6. Bleed Valve Seat (
103
) not sufficiently tight and/or
incorrect or no sealant
7. Adapter (
87
) not sufficiently tight and/or incorrect or no
sealant
8. Plug (
90
) not sufficiently tight
1. Tighten Screws (
80
)
2. Replace Gaskets (
84
3. Tighten Clamp Bolt (
98
)
4. Tighten Adapter (
104
)
5. Replace Gasket (
105
)
6. Apply thread sealant* to Bleed Valve Seat (
103
)
and tighten the Seat into Adapter (
104
)
7. Apply thread sealant* to Adapter (
87
) and
tighten the Adapter into Valve Body (
88
)
8. Tighten Plug (
90
)
Product leakage visible at Bleed
Valve Screw (
102
)
1. Bleed Valve Screw (
102
) open
2. Damaged Bleed Valve Screw (
102
)
3. Damaged Bleed Valve Seat (
103
)
1. Close Bleed Valve Screw (
102
)
2. Replace Bleed Valve Screw (
102
)
3. Replace Bleed Valve Seat (
103
)
Product leakage visible at Base
(
82
)
1. Base Screws (
2
) not sufficiently tight
2. Damaged Gasket (
58
)
3. Damaged Gasket (
16
)
1. Tighten Screws (
2
)
2. Replace Gasket (
58
)
3. Replace Gasket (
16
)
Sump oil leakage visible at
Base (
82
)
1. Gear Body Screws (
66
) not sufficiently tight
2. Worm or damaged O-Ring (
61
)
3. Shaft Nut (
76
) not sufficiently tight
4. Worm or damaged Shaft O-Ring (
57
)
5. Setscrew (
78
) not sufficiently tight
6. Damaged Gasket (
79
)
7. Drain Plug (
74
) not sufficiently tight
1. Tighten Screws (
66
)
2. Replace O-Ring (
61
)
3. Tighten Nut (
76
)
4. Replace O-Ring (
57
)
5. Tighten Setscrew (
78
)
6. Replace Gasket (
79
)
7. Tighten Drain Plug (
74
)
Sump oil leakage visible at Gear
Body (
70
)
1. Worm or damaged Oil Seal (
69
)
2. Worm or damaged Shaft O-Rings (
68
)
1. Replace Oil Seal (
69
)
2. Replace O-Rings (
68
)
Internal Leaks
Pump does not prime or cycles
continuously, or intermittently
1. Foreign material between Pump Check Valve (
107
) and
Cylinder (
85
)
2. Cylinder (
85
) not sufficiently tight
3. Damaged Gasket (
84
)
4. Worn or damaged Pump Check Valve (
107
)
5. Worn or damaged Piston and Cylinder Assembly (
85
)
6. Worn or damaged Spring (
106
)
7. Foreign material between Emergency Bypass Relief Valve
(
93
) and Valve Seat (
92
)
8. Valve Seat (
92
) not sufficiently tight
9. Damaged Gasket (
91
)
10. Worn or damaged Emergency Bypass Relief Valve (
93
)
11. Worn or damaged Valve Seat (
92
)
12. Worn or damaged Spring (
95
)
1. Locate and eliminate source of foreign material.
2.Tighten Cylinder (
85
)
3. Replace Gasket (
84
)
4. Replace Pump Check Valve (
107
)
5. Replace Piston and Cylinder Assembly (
85
)
6. Replace Spring (
106
)
7. Locate and eliminate source of foreign material.
8. Tighten Valve Seat (
92
)
9. Replace Gasket (
91
)
10. Replace Emergency Bypass Relief Valve (
93
)
11. Replace Valve Seat (
92
)
12. Replace Spring (
95
)
Product mixes with sump oil
1. Worm or damaged Piston and Cylinder O-Ring (
86
)
2. Worm or damaged Piston and Cylinder Assembly (
85
)
3. Damaged Shaft and Helicoid Flight Assembly O-Ring (
49
)
1. Replace O-Ring (
86
)
2. Replace Piston and Cylinder Assembly (
85
)
3. Replace O-Ring (
49
)
* Do not apply thread sealant to the first two (2) threads. Contamination can occur.
Changes Since Last Printing
Deleted 305174 Gasket
