Westerbeke 12C- TWO User Manual

. PRM NEWAGE TRANSMISSIONS TROUBLESHOOTING
.
Problem· Probable CaUse VerlllcationJReme~y
..
Excessive noise at low speeds.
1.
Engine idle speed too low.
1.
Increase.ldling speed.
Excessive noise at all speeds.
1.
Defective coupling.
1.
Inspect/replace coupling if necessary.
2. Shaft misalignment. 2.
Check alignment with feeler gauge.
3. Prop out of balance. 3.
Remove, check pitch, balance and weight.
Fluid needs constant topping off.
1. Power too high. 1.
Compare engine and transmission data.
2. Fluid leak. 2.
Inspect seals, O-rings, drain plug, check for fluid leaks.
Difficulty in moving lever control.
1. Poor installation of cable. 1.
Check installation, remoVe sharp bends and turns.
2. Faulty cable.
2.
Replace.
Escape of pressure from gearbox
1. Defective breather causing leaks
1. Remove dipstick/clean vent holes - PRM80.
when dipstick is removed.
past all seals.
2. Unscrew vent assembly from top of transmission and clean
with solvent - PRM120.
No drive ahead or astern. 1. Mechanical-damper plate problem. 1.
Replace damper plate.
Propeller speed does not increase 1. Shift cable.
1. Remove contrQI cable or linkage not allowing F-N-R to
with engine speed ahead and astern.
move correct distaQoe. Remove cable and operate lever by
hand to check movement. Adjust cable if necessary
Propeller speed does not increase
1_
Cone/clutch cable Slippage. Damaged. 1.
Remove and ex.mlne clutch/clutoh cone on appropriate
with engine speed in one direction only. clutch plates or clutch cones.
shaft and replace If necessary.
Excessive noise from gearbox 1. Engine idle speed set too low. 1.
Increase idling speed. If not cured by increasing Idling speed,
at low speeds. Faulty adjustment.
refer to engine supplier. Remove, examine and replace
coupling if necassary.
Excessive noise throughout
1.
Defective input coupling. Input 1.
Check the alignment of the propeller shaft coupling. If .
operating range.
coupling worn/damaged.
necessary, recmy by adjusting the shims under the
Propeller shaft misalignment, faulty
engine mounts or·adjust the engine mounts themselves.
installation or hull flexing.
2.
Propeller out of balance, damaged prop,
2. Remove the propeller and check that the pitch, weight,
poorly matched.
diameter and balance of all the blades are equal and rectify
if necessary.
3.
D.efective bearing/bearing.
3.
Isolate defective bearing, remove and replace.
Worn or damaged.
Difficulty in moving single lever control.
1. Opereting control cable. 1.
Check the installation ami eliminate all tight bends in the cable.
~WES'TERBEICE
Engines & Generators
53

Westerbeke 12C- TWO Specifications

General

Brand	Westerbeke
Model	12C- TWO
Category	Engine
Language	English