2
Form 16575458-Edition 1
WARNING
Always wear eye protection when operating or performing maintenance on this pump.
Always turn off the air supply and disconnect the air supply hose before installing, removing or adjusting any accessory on this pump or before
performing any maintenance on this pump.
Lubrication
Each time a P237 Sump Pump is disassembled for maintenance and
repair or replacement of parts, lubricate the Pump as follows:
1.
Remove the Oil Chamber Plug (8) and fill the oil chamber in the
Backhead (1) with
Ingersoll-Rand
No. 50 Oil.
2.
Before attaching the air hose, inject about 3 cc of oil into the air inlet.
3.
After each four hours of operation, unless an air line lubricator is
used, fill the oil chamber in the Backhead with oil.
4.
After each forty hours of operation, or as experience indicates, pump
10 or 15 strokes of
Ingersoll-Rand
Water Pump Grease No. 80 into
the Grease Fitting (15) on the Motor Housing (14). Use the
No. P25-228 Grease Gun.
5.
We recommend the use of
Ingersoll-Rand
No. 8LUB12 Lubricator
located in the air supply line as close to the Pump as practical. Keep
the Lubricator filled with
Ingersoll-Rand
No. 50 Oil.
Air Strainer
Periodically, clean the Air Strainer Screen (9) as follows:
1.
Shut off the air supply to the Pump.
2.
Unscrew the Air Strainer Plug (11).
3.
If the Screen still appears clogged, unscrew the Air Strainer Cap (10)
and withdraw the Screen. Clean the Screen in a suitable cleaning
solution in a well ventilated area.
Disassembly
General Instructions
1.
Do no disassembly the Pump any further than necessary to replace
or repair damaged parts.
2.
Whenever grasping a part in a vise, always use leather-covered or
copper-covered vise jaws to protect the surface of the part and help
prevent distortion. This is particularly true of threaded members and
housings.
3.
Do not remove any part which is a press fit it or on a subassembly
unless the removal of that part is necessary for repairs or replacement.
Disassemble a P237 Pump as follows:
1.
If the Air Strainer Screen (9) is to be cleaned or replaced, unscrew
the Air Strainer Cap (10) and withdraw the Screen.
2.
Unscrew and remove the Backhead Cap Screws (13). Lift off the
Backhead.
3.
If the oiler is to be disassembled, remove the Oiler Body Retainer (7)
and withdraw the Oiler Body Assembly (2) from the Backhead.
4.
Unscrew the Impeller Cover Cap Screws (48) and remove the Inlet
(46) and Impeller Cover (45).
5.
Sprag the Impeller (41) against rotation by inserting a long
screwdriver through one of the suction ports and into the discharge
port in the Housing (14).
6.
Unscrew the Impeller Retaining Screw (43) and remove the Impeller.
7.
While grasping the Controller (18) in one hand, gently tap on the
impeller end of the Rotor Shaft (32) with a plastic hammer and
withdraw the motor from the Housing.
8.
The upper Rotor Shaft Bearing (33) and Bearing Spacer (34) usually
come out with the motor. Slide them off the Rotor Shaft.
NOTICE
The Controller Retaining Nut (20) has a right-hand thread.
9.
Grasp the Rotor Shaft vertically in copper-covered vise jaws, and
unscrew the Controller Retaining Nut.
NOTICE
The Controller Assembly has a left-hand thread.
10. Using the No. 99V60-950 Controller Wrench, unscrew the Controller
Assembly.
NOTICE
Do not attempt to disassemble the Controller. It is available only
as a unit.
11. Lift off the Rear End Plate Gasket (22).
12. Set the Bearing Cage (21) on blocks on an arbor press. Using a
metal sleeve that contacts only the outer race of the Rear Rotor
Bearing (19), press off the Bearing Cage.
13. If it is necessary to remove the Rear Rotor Bearing, insert the Rear Rotor
Bearing into the No. 99V60-A952 Bearing Clamp and tighten the nut on
the fixture. Insert the No. 99V60-951 Seal Pressing Tool in the center.
14. Lift off the Rotor Bearing Seal (19) and Rear End Plate (23).
15. Lift off the Cylinder (24).
16. Remove the Vanes (29).
17. Withdraw the Rotor (27) and lift out the Rotor Key (28).
18. Lift off the Front End Plate (30).
19. Remove the Motor Clamp Washers (31).
NOTICE
The Water Seal Cap Assembly (37) has a left-hand thread.
Do not remove the Water Seals (38) from within the Water Seal
Cap unless you have two new Seals on hand for installation.
The Water Seals are always damaged during the removal
process. Always check the Water Seals for wear or leakage.
20. Using a water seal cap spanner wrench, unscrew and remove the
Water Seal Cap Assembly.
21. Withdraw the Seal Spacer (35).
22. The Lower Shaft Bearing (33) can usually be pushed from the
Housing with a wooden dowel. However, if the Water Seals were
badly worn so that water got into and around the Bearing, it may be
necessary to forcibly drive the Bearing from the Housing. If this is the
case, make certain you have a new Bearing on hand for installation.
Assembly
General Instructions
1.
Always press on the
inner
ring of a ball-type bearing when installing
the bearing on a shaft.
2.
Always press on the
outer
ring of a ball-type bearing when pressing
the bearing in a bearing recess.
3.
Whenever grasping a part in a vise, always use leather-covered or
copper-covered vise jaws. This is particularly true of threaded
members and housings.
4.
Except for bearings, always clean every part, and wipe every part
with a thin film of oil before installation.
5.
Check every bearing for roughness. If an open bearing must be
cleaned, wash it thoroughly in a
clean
solution and dry with a clean
cloth.
Sealed or shielded bearings should not be cleaned.
6.
Apply a film of O-ring lubricant to all O-rings before installation.
Assemble a P237 Pump as follows:
1.
If the Water Seals (38) were removed from the Water Seal Cap (37),
install new Seals as follows:
a. Press the first Seal, lip side first, into the Water Seal Cap until it
bottoms against the shoulder.
b. Press the second Seal, lip side trailing, into the Water Seal Cap
until the trailing edge of the Seal is flush with the face of the Water
Seal Cap.
c. Insert the Impeller Spacer (39), beveled end first, through both
Seals until its beveled end is flush with the threaded end of the
Water Seal Cap.
2.
Install the lower Shaft Bearing (33) followed by the Seal Spacer (35)
in the bottom of the Housing (14) until the Bearing seats against the
Housing Snap Ring (36).
CALL 1-800-577-8111 FOR SALES AND SUPPORT
CLICK HERE TO RETURN TO WEBSITE
Summary of Contents for P237A1-EU
Page 4: ......
