tmp gearbox workshop manual top

The system typically operates at approximately 80 psi to engage the conical clutch plates.

If the 8-bush input is seized due to rust, experts at Thamesway Marine Products suggest cutting a small access hole in the housing to apply lubricant and leverage the flywheel directly. 2. Inspection for Wear

Check the pressure plate face and gears for ovality. Excessive wear here leads to a "flicking" pressure gauge or total loss of drive.

Ahead linings often show "gramophone groove" witness marks. Modern replacement linings require professional bonding.

During disassembly, pay close attention to the following high-wear areas:

Inspect the bushes and shafts. Wear in this area is a primary cause of excessive noise. 3. Reassembly Best Practices TMP gearbox assembly DIY | YBW Forum

Most TMP 12000 units are designed for right-hand rotation engines. Note that direct-drive models turn the propeller in the same direction as the engine, while reduction boxes may vary based on the number of pinions used. Critical Maintenance and Assembly Components

The gearbox is typically attached to the engine bell housing by internal nuts. You must remove the gearbox and bell housing as a single unit.

A rearward movement of approximately 2.0 inches is usually required to clear the input shaft. For Mercedes-based installations, this may increase to 6.0 inches.

A full overhaul requires specific replacement parts to ensure the integrity of the hydraulic seals and mechanical drive. Component Type Part Number / Requirement Seals the output shaft for direct drive units. Gasket Kit Includes essential O-rings for pressure integrity. Brake Pad Neutral brake pad for stopping shaft rotation. Oil Filter TM 12009 / 12773 Models differ between MK II and MK IV versions. Step-by-Step Workshop Procedures 1. Removal and Disengagement