Slinger and shaft seal removal and installation, Remove the slinger – Rockwell Automation MPS-xxxx Stainless Steel Servo Motor User Manual
Page 19
MP-Series Stainless Steel Servo Motor with 100 mm to 165 mm Frame Size 19
Publication MP-IN005F-EN-P - January 2014
Slinger and Shaft Seal Removal and Installation
The slinger and a shaft seal provide environmental sealing for Bulletin MPS motors. The slinger
shields the shaft seal from contact with the full force of high-pressure cleaning fluids, while the
shaft seal provides a secondary barrier to moisture and particle intrusion that protects the motor
bearings. Bulletin MPS motors are shipped with a plastic slinger and PolyTetraFluoroEthylene
(PTFE) shaft seal installed.
Lubricate the shaft seals with a food-grade polyurea base grease, such as Chevron
FM (NLGI 2).
Lubricant is included in each shaft seal kit
.
Remove the slinger and shaft seal by performing the following procedures. If a sealed gearbox is
to be attached to the motor shaft, perform only the
procedure.
for a list of kits. A slinger is included in each shaft seal kit.
Remove the Slinger
1. Use two screwdrivers to carefully lever the slinger away from the faceplate of the motor.
You must create sufficient clearance to attach a wheel-puller, or a similar device
underneath the slinger.
2. Center the wheel-puller on the motor shaft and position its arms under the slinger.
3. Slowly adjust the wheel-puller to lift the slinger off the motor shaft.
4. Dispose of the used slinger.
ATTENTION: Damage to the motor surface where the slinger and shaft seals make contact can cause excessive
wear and early failure of the slinger and shaft seal. Use care to prevent scratching or damaging the surface of the
motor or the shaft.
TIP
Remove the shaft key, if the motor is so equipped, before performing the following steps. Refer to
Install a Shaft Key on page 18
.
IMPORTANT
Do not scratch or damage the motor shaft or mounting surface.
IMPORTANT
Do not contaminate other surfaces or objects with foreign material from the slinger.