High-Pressure Grease Pump
SER 7175-R4
Alemite, LLC
17
Revision (2-13)
Initial Preparation
NOTE
: These procedures prepare the pump
for overhaul. Refer to
Figures 2-A
and
2-B
for component identification.
IMPORTANT: Make sure:
• the Electrical Cord is removed from the outlet.
• to operate the Control Valve into the Container to
release any pressure within the pump
1. Remove Cover and Handle Assembly (
1
) from
Container (
4
).
2. Remove all of the product from the Container.
3. Place a collection container underneath Base (
82
).
4. Remove Drain Plug (
74
) from the Base.
• Allow the Base to drain completely.
5. Remove Electrical Cord (
7
) and the Material Hose
Assembly from Handle Assembly (
11
).
Pump Overhaul
Breakdown
NOTE
: Breakdown procedures are a combi-
nation removal and disassembly process.
Certain subcomponents are removed before
complete disassembly occurs.
Refer to the section entitled
Disassembly
for
details on the following subassemblies:
• Planetary Gear Body
• Valve Body
• Pressure Switch
For details on the Motor, refer to the section
entitled
Motor Overhaul.
Container and Accessories
NOTE
: Refer to
Figures 2-A
,
2-B
,
2-C
,
and
2-D
for component identification on the fol-
lowing breakdown procedures.
1. Remove Screws (
12
) and Washers (
13
) that secure
Bracket Assembly (
14
) to the Container.
2. Loosen Setscrews (
19
) that secure the Handle
Assembly to Rear Supports (
22
and
26
).
• Remove the Handle and Bracket Assembly.
3. Remove Nuts (
5
) from both Rods (
6
) as required.
4. Remove Screw (
45
) and Washer (
18
) that secures
Blade and Helix Arm Assembly (
46
) to Shaft and
Helicoid Flight Assembly (
47
).
• Remove the Blade and Helix Arm Assembly.
5. Remove Screws (
36
) and Lock Washers (
20
) that
secure Disc (
44
) to Helicoid Housing (
50
).
• Remove the Disc.
6. Remove Screws (
2
) that secure the Reinforcement
Rings (
3
) and Container to the Helicoid Housing.
• Remove Reinforcement Rings and Container.
7. Remove the Helicoid Housing assembly from the
Base.
Helicoid Housing Assembly
8. Remove Gasket (
16
) from the Helicoid Housing.
NOTE
: Do not lose Key (
48
) during next
step.
9. Remove Screw (
52
) that secures Gear (
51
) to Shaft and
Helicoid Flight Assembly (
47
).
• Remove the Gear.
10. Remove Key (
48
).
11. Remove the Shaft and Helicoid Flight Assembly from
the Helicoid Housing.
12. Remove O-Ring (
49
) from the Shaft.
Base Assembly Peripherals
13. Remove Gaskets (
16
) and (
58
) from the Base.
14. Remove Screws (
36
) and Lock Washers (
20
) that
secure Cover and Bracket Assembly (
37
) to the Base.
• Remove the Cover and Bracket Assembly.
15. Turn the pump assembly upward and face the bottom.
Pressure Switch and Valve Body Assembly
16. Loosen Material Hose (
10
) from Pressure Switch and
Valve Body Assembly (
81
).
• Do not remove the Material Hose at this time.
17. Remove Clamp Bolt (
98
) that secures Pressure Switch
Assembly (
101
) to Valve Body (
88
).
18. Remove O-Rings (
100
) from the Switch Assembly.
19. Remove Gasket (
99
) from the Clamp Bolt.
20. Remove Screws (
121
) and Lock Washer (
122
) that
secure Switch Housing (
123
) to Bracket (
129
).
• Remove the Switch Housing.
