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375 SE
800-00162
PUMP MAINTENANCE (MDT46 SWING)
PUMP MAINTENANCE (MDT46 SWING)
PUMP MAINTENANCE (MDT46 SWING)
PUMP MAINTENANCE (MDT46 SWING)
PUMP MAINTENANCE (MDT46 SWING)
MINOR REPAIR AND REPLACEMENT
MINOR REPAIR AND REPLACEMENT
MINOR REPAIR AND REPLACEMENT
MINOR REPAIR AND REPLACEMENT
MINOR REPAIR AND REPLACEMENT
GENERAL
GENERAL
GENERAL
GENERAL
GENERAL
Cleanliness is a primary means of assuring satisfactory transmission life, on either new or repaired units. Cleaning
parts by using a clean solvent wash and air drying is usually adequate. As with any precision equipment, all parts
must be kept free of foreign materials and chemicals.
Protect all exposed sealing surfaces and open cavities from damage and foreign material. See Figure 1.
It is recommended that all gaskets and o-rings be replaced. Lightly lubricate all o-rings with clean petroleum jelly
prior to assembly. All gasket sealing surfaces must be cleaned prior to installing new gaskets.
REPLACING THE SHAFT SEAL
REPLACING THE SHAFT SEAL
REPLACING THE SHAFT SEAL
REPLACING THE SHAFT SEAL
REPLACING THE SHAFT SEAL
Lip type shaft seals are used on pumps and motors. These seals can be replaced without major disassembly of
the unit. However, replacement of the shaft seal requires removal of the pump or motor from the machine.
1. Remove the retaining ring from the housing.
2. Carefully remove the seal from the housing bore. The face of the seal may be punctured with a sharp
instrument (such as a screw driver) to aid in prying the seal out, or a slide hammer type puller may be used
to remove the seal. Care must be taken so as not to damage the housing bore or shaft. Once removed, the
seal is not reusable.
3. Prior to installing the new seal, inspect the sealing area on the shaft for rust, wear, or contamination. Polish
the sealing area on the shaft if necessary.
4. Wrap the spline or key end of shaft with thin plastic to prevent damage to the seal lip during installation.
5. Lubricate the inside diameter of the new seal with petroleum jelly.
6. Slide the new seal over the shaft and press it into the housing bore. Be careful not to damage seal. A seal
installer tool can be made to aid in installing the seal. Dimensions for this tool are shown in Figure 2.
7. Reinstall the seal retaining ring.
Figure 1
Figure 1
Figure 1
Figure 1
Figure 1
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
SHAFT SEAL INSTALLATION TOOL DIMENSIONS
SHAFT SEAL INSTALLATION TOOL DIMENSIONS
SHAFT SEAL INSTALLATION TOOL DIMENSIONS
SHAFT SEAL INSTALLATION TOOL DIMENSIONS
SHAFT SEAL INSTALLATION TOOL DIMENSIONS
