Leroy-Somer — Dismantling PLS 160 M/MG/L and PLS 180 M/L motors
Repair & overhaul · Motor assembly
From a Leroy-Somer service manual — check it applies to your exact model before use.
Before you start
- Take care not to knock the running surfaces of the shaft
Procedure
- Remove screws (27) and take off the cover (13)
- Pull out the fan (7) using a hub remover or 2 opposed levers with shield (6) as support, then remove the fan pin
- Take out the key (21) and remove seals (39) and (54)
- Unscrew and remove the tie rods (14)
- Unscrew inner bearing retainer (33) screws (40) or NDE retainer (53) screws (62) as applicable
- Using a bronze drift, remove shields (5 and 6) by tapping the shield bosses; recover preloading washer (59)
- Remove circlip (38) if flange mounted, and circlip (60) if roller bearings
- Remove rotor (3) from stator (1) at the drive end, taking care not to touch the winding
- Take out bearings (30) and (50) with a bearing remover, protecting the shaft end with a washer
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Leroy-Somer service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.