Universal M-35B(C) User Manual

PRM NEWAGE TRANSMISSIONS TROUBLESHOOTING
Problem
Excessive noise at low speeds.
1.
Excessive noise at all speeds.
1.
2.
3.
Fluid needs constant topping off.
1.
2.
Difficulty in moving lever control.
1.
2.
Escape of pressure from gearbox
1.
when dipstick is removed.
No drive ahead or astern.
1.
Propeller speed does not increase 1.
with engine speed ahead and astern.
Propeller speed does not increase
1.
with engine speed in one direction only.
Excessive noise from gearbox
1.
at low speeds.
Excessive noise throughout
1.
operating range.
2.
3.
Difficulty in moving single lever control. 1.
Probable Cause
Engine idle speed too low.
Defective coupling.
Shaft misalignment.
Prop out of balance.
Power too high.
Fluid leak.
Poor installation of cable.
Faulty cable.
Defective breather causing leaks
past oil seals.
Mechanical-damper plate problem.
Shift cable.
Cone/clutch cable slippage. Damaged.
clutch plates or clutch cones.
Engine idle speed set too low.
Faulty adjustment.
Defective input coupling. Input
coupling worn/damaged.
Propeller shaft misalignment, faulty
installation or hull flexing.
Propeller out of balance, damaged prop,
poorly matched.
Defective bearing/bearing.
Worn or damaged.
Operating control cable.
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Verification/Remedy
1.
Increase-idling speed.
1. Inspect/replace coupling if necessary.
2. Check alignment with feeler gauge.
3. Remove, check pitch, balance and weight.
1.
Compare engine and transmission data.
2. Inspect seals, 0-rings, drain plug, check for fluid leaks.
1.
Check installation, remove sharp bends and turns.
2. Replace.
1.
Remove dipstick/clean vent holes - PRM 80.
2.
Unscrew vent assembly from top of transmission and clean
with solvent- PRM 120.
1. Replace damper plate.
1. Remove control cable or linkage not allowing F-N-R to
move correct distance. Remove cable and operate lever by
hand to check movement. Adjust cable if necessary
1. Remove and examine clutch/clutch cone on appropriate
shaft and replace if necessary.
1.
Increase idling speed. If not cured by increasing idling speed,
refer to engine supplier. Remove, examine and replace
coupling if necessary.
1.
Check the alignment of the propeller shaft coupling. If
necessary, rectify by adjusting the shims under the
engine mounts or adjust the engine· mounts themselves.
2. Remove the propeller and check that the pitch, weight,
diameter and balance of all the blades are equal and rectify
if necessary.
3.
Isolate defective bearing, remove and replace.
1.
Check the installation and eliminate all tight bends in the cable.

Universal M-35B(C) Specifications

General

Brand	Universal
Model	M-35B(C)
Category	Engine
Language	English