11 -
PRM125
i) The Gearbox operating Lever is provided with a positive neutral position, which greatly assists the setting up of the
remote control unit.
ii) CAUTION: CARE SHOULD BE TAKEN TO ENSURE THAT THE FLEXIBLE CABLE IS CAPABLE
AND CAN MOVE THE FEARBOX LEVER FREELY TO THE FULL EXTENT OF ITS TRAVEL BOTH
FORWARD AND BACKWARD AND THAT ITS NEUTRAL POSITION IS CORRECT FOR THIS TO TAKE
PLACE.
The control equipment should in all cases be connected in accordance with the manufacturer’s recommendations.
6. OPERATION
6.1 First time usage
CAUTION:
Before starting the Engine fill the Gearbox to the correct level with a suitable oil (refer
to recommended list, section 4.3).
Ensure the Gearbox is in neutral. Start and run the Engine for a short time so that the oil circulates through the
Gearbox. Stop the Engine and allow the oil to settle for two minutes, re-check the level and top up to the marked oil
level.
NOTE:
The Dipstick should be pushed down when checking the oil level.
6.2 Drive selection
The PRM125D has been designed to operate with proprietary single Lever control systems which decreases the Engine
speed to idle before opposite Gear selection can be made. It is most important that when changing direction a short
pause is taken in neutral at engine idle before selecting Gear. (see section 5.7)
6.3 Trailing (free wheeling) the Propeller
The Output Shaft can be rotated in neutral continually with the Engine shut down which makes the PRM125D
particularly suited for use in auxiliary sailboats, sailing yachts etc. Never put the Lever in the position corresponding to
the direction of the Vessel.
7. ROUTINE MAINTENANCE
7.1 Initial maintenance (after 25 hours running)
Drain all oil from the Gearbox, the Drain Plug is located on the side of the Transmission, below the Selector Lever. A
25.4mm (1.0’’) across flats spanner is required. Refit Drain Plug.
Refill with oil as stated in 4.3.
7.2 Daily checks
Check the Gearbox oil level on Dipstick.
Visually inspect for oil leaks and general condition of the Gearbox.
7.3 Six monthly check
Check the remote control operating linkage is accurately adjusted to give maximum travel (stop to stop) in both
directions.
7.4 Annual check
All above checks.
Propeller Shaft alignment inspection.
Change Gearbox oil and after 500 hours or annually which ever comes first.
7.5 Cone Clutch adjustment
The Cone Clutch is self- adjusting and therefore needs no adjustment. Should Gear selection become difficult it is
advisable to check the installation and operaion of the Control Cable as discribed in 5.7. if this is correct then the Cone
Clutch adjustment can be carried out as decribed in 9.7.6. if problems persist after the adjustment. It will be necessary
to dissassemble the Gearbox to investigate the condition of the Cone Clutch.
If the Cone Clutcvh shows signs of loss of coating, glazing and heat discoloration and the mating Gears shows signs of
heavy groove indentations then the Cone Clutch and the Mating Gears must be replaced. If only the Gears are replaced
then the adjustment of the Cone Clutch is not required. If the cone Clutch is replaced then adjustment needs to be
carried out as described in 9.7.6.
Summary of Contents for PRM125D
Page 1: ...PRM125D WORKSHOP MANUAL...
Page 10: ...9 PRM125 BASIC INSTALLATION DETAILS PRM125D Figure 4 Intallation Details...
Page 19: ...18 PRM125 13 Exploded view and Cross section Figure 5 Exploded view and cross section...
Page 20: ...19 PRM125...
Page 21: ...20 PRM125...
Page 22: ...21 PRM125...
