PRM NEWAGE PRM125D Page 23 Workshop Manual Download

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PRM125

SPARES KITS

GEARS & CLUTCH

KIT

INCLUDED

COMPONENTS

DESCRIPTION

PRODUCTS

MT8684-KIT (2:1)

MT8684
MT8687
MT8688

FORWARD GEAR
REVERSE GEAR
CONE CLUTCH

PRM120 &

PRM125

MT8685-KIT (2.5:1)

MT8685
MT8687
MT8688

FORWARD GEAR
REVERSE GEAR
CONE CLUTCH

PRM120 &

PRM125

MT8686-KIT (3:1)

MT8686
MT8687
MT8688

FORWARD GEAR
REVERSE GEAR
CONE CLUTCH

PRM120 &

PRM125

Summary of Contents for PRM125D

Page 1: ...PRM125D WORKSHOP MANUAL...

Page 2: ...and therefore reserves the right to change specifications without prior notification Whilst every effort is made to ensure complete accuracy of the information in this manual no liabilities for inaccu...

Page 3: ...d oils and oil filling 7 5 INSTALLATION 8 5 1 General 8 5 2 Checking the engine Flywheel Housing 8 5 3 Checking the Engine Flywheel 8 5 4 Mounting the Gearbox to the Engine 10 5 5 Alignment to Propell...

Page 4: ...8 Gearcase 14 9 7 Re assembly of gearbox 14 9 7 1 Input Shaft 14 9 7 2 Output Shaft see 9 7 5 for shimming procedure 14 9 7 3 Idler Shaft 15 9 7 4 Selector housing assembly 15 9 7 5 Shimming 15 9 7 6...

Page 5: ...e Ltd direct quoting the serial number CLAIMS UNDER WARRANTY Claims for replacement of parts under warranty must always be submitted with the Gearbox serial number to the distributor who supplied the...

Page 6: ...erial number and should always be quoted when ordering spare parts the lower line is the Gearbox specification in the example given this translates as follows 125 D 2 First 2 digits Gearbox Model 125...

Page 7: ...sification without labouring 1 GENERAL DATA 1 1Specifications Gear ratios ahead 2 04 1 2 50 1 3 06 1 Gear ratio astern 2 44 1 common POWER RATING AHEAD RATIO PLEASURE LIGHT COMMERCIAL BHP kW BHP kW 2...

Page 8: ...facilitate servicing 3 2 Gear train The helical Gear train is manufactured from high grade Steel with all Gears being case hardened for long life All Shafts are supported on Taper Roller Bearings whic...

Page 9: ...elp find solutions to potential torsional problems but it is the ultimate responsibility of the person assembling the drive and driven equipment to ensure that they are torsionally compatible 5 2 Chec...

Page 10: ...9 PRM125 BASIC INSTALLATION DETAILS PRM125D Figure 4 Intallation Details...

Page 11: ...Shaft and stern tube to be maintained Whether a solid of flexible coupling is used it is extremely important that the following points are carefully checked i the Coupling should be a tight press fit...

Page 12: ...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 Dra...

Page 13: ...tallation Remove examine and replace if necessary Check the alignment of the Propeller Shaft Coupling if necessary rectify by adjusting the Shims under the Engine mounts or the Engine mounts themselve...

Page 14: ...parts in solvent to remove dirt grease and oil Be careful to remove solvent from items before re fitting 9 4 Inspection 9 4 1 Gearcase Inspect for cracks Check sealing surfaces for any scratches damag...

Page 15: ...Gear 24 and remove the Bearing 28 cone Check condition of the O Ring 49 on the Idler Shaft 2 9 6 6 Selector By hand remove Selector Shoe 9 and the Spring 8 Remove the Lever 13 Pass the Selector Contro...

Page 16: ...haft lengths over Bearings to achieve shim requirement Dimension Y A 6 Fit shims as required to within zero to 0 05mm pre load Place the Shims into the appropriate bore of the Front Cover 29 so that t...

Page 17: ...of the Selector Shoe 9 and the Dog Point Grub Screw 17 at max cone eccentricity CAUTION This condition can only be maintained with the clutch at the top dead centre If this is not achieved the gear s...

Page 18: ...SHER 2 23 0563201 NEEDLE BEARING 2 24 MT8406 IDLER GEAR 1 25 001 0270 BEARING 4 26 0672801 THRUST WASHER 2 27 0320470 INTERNAL SPRING RING 1 28 0540252 BEARING 2 29 MT8621 FRONT CASE 1 30 MT8095 BINX...

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...

Page 23: ...ODUCTS MT8684 KIT 2 1 MT8684 MT8687 MT8688 FORWARD GEAR REVERSE GEAR CONE CLUTCH PRM120 PRM125 MT8685 KIT 2 5 1 MT8685 MT8687 MT8688 FORWARD GEAR REVERSE GEAR CONE CLUTCH PRM120 PRM125 MT8686 KIT 3 1...

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PRM NEWAGE PRM125D, Workshop Manual

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