HMB100-T-FM3 High-Efficiency Motor

Application scope

• Ship mooring winches, auxiliary anchor winches, deck machinery, dredger drives, offshore equipment, heavy‑duty industrial winches.

• Direct‑drive configuration: motor T‑shaft couples directly to winch drum, no intermediate gearbox.

  
  

Key design features

1. Hydrostatic‑balanced piston‑shoe assembly, low wear, good break‑away torque at zero speedKawasaki P...

2. Large output‑shaft roller bearings designed to absorb heavy drum radial loads

3. Fixed‑displacement only; no built‑in free‑wheel valve (unlike Bauer HMB7‑HV272). If free‑wheeling function required, you must add external pilot free‑wheel valve block.

4. Robust marine‑grade casting, salt‑spray resistant for shipboard environment.

Common failure & service notes

1. Case drain back‑pressure too high

   Symptoms: shaft seal blow‑out, accelerated internal wear, reduced efficiency. Keep drain pressure < 5 bar at all times.

2. Cavitation damage

   Cause: insufficient supply pressure during high‑speed overrunning load; requires boost‑pilot circuit for winch lowering operations.

3. Shaft seal leakage

   Typical service item under marine salt‑spray exposure; replace full seal kit during overhaul.

4. No internal free‑wheel. Any gravity‑pay‑out winch needs external free‑wheel manifold.

Spare‑parts reference

• Complete motor seal kit (main shaft seal, O‑rings, backup rings)

• Piston‑shoe assemblies

• Cam ring

• Output shaft bearing set

• Valve plate / distributor plate

Interchange & cross‑reference

• OEM: Kawasaki Precision Machinery (Staffa division).

• Aftermarket rebuild units are available from marine hydraulic workshops; must verify two critical items before replacement:

1. FM3 flange dimensional drawing

2. T‑shaft dimension (diameter, keyway)

• Cannot direct swap with Imenco‑Bauer HMB‑series; different flange, shaft, porting and internal principle.