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Leroy-Somer — Greasing bearings with grease nipples

Maintenance

From a Leroy-Somer service manual — check it applies to your exact model before use.

Before you start

  • Too much grease causes the bearing to overheat
  • The new grease must be recently manufactured and free of impurities (dust, water, etc.)
  • When using a different type of grease of similar quality, dismantle the motor and clean bearings and accessories before regreasing

Procedure

  1. Always begin by cleaning the waste grease channel
  2. Remove the covers and clean the grease nipple heads
  3. Grease with the motor running so the new grease is well distributed in the bearing
  4. If greasing cannot be done with the motor running: stop the motor, inject only half the grease shown on the nameplate, turn the motor a few minutes, then add more grease until the indicated quantity i

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Grease type on nameplate, standard ESSO UNIREX N3
  • Grease nipple M8 x 125 Tecalemit-Hydraulic

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.

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