SEL-0047-001.DOC
REV-4
July 2020
RUFNEK 45
AND
MODEL 64
SERVICE MANUAL
GENERAL INFORMATION .......................................................................................................................... 4
INTRODUCTION AND THEORY OF OPERATION .................................................................................................................... 4
ASSEMBLY NUMBER EXPLANATION ...................................................................................................................................... 4
WINCH BREAK-IN ...................................................................................................................................................................... 4
MODEL CODES ........................................................................................................................................... 5
MAINTENANCE ............................................................................................................................................ 6
OIL LEVELS ................................................................................................................................................................................ 7
BRAKE IDENTIFICATION AND ADJUSTMENT ......................................................................................................................... 8
DISASSEMBLY .......................................................................................................................................... 10
DRUM BRAKE DISASSEMBLY ................................................................................................................................................ 10
ADJUSTABLE OIL BRAKE DISASSEMBLY ............................................................................................................................. 11
NON-ADJUSTABLE OIL BRAKE DISASSEMBLY .................................................................................................................... 12
RUFNEK OIL BRAKE DISASSEMBLY ..................................................................................................................................... 13
CLUTCH AND DRUM DISASSEMBLY ..................................................................................................................................... 14
GEARBOX DISASSEMBLY ...................................................................................................................................................... 15
GEAR INSPECTION INSTRUCTIONS ..................................................................................................................................... 16
ASSEMBLY ................................................................................................................................................ 17
GEARBOX ASSEMBLY ............................................................................................................................................................ 17
DRUM BRAKE ASSEMBLY ...................................................................................................................................................... 18
ADJUSTABLE OIL BRAKE ASSEMBLY ................................................................................................................................... 19
NON-ADJUSTABLE OIL BRAKE ASSEMBLY .......................................................................................................................... 20
RUFNEK OIL BRAKE ASSEMBLY ........................................................................................................................................... 21
CLUTCH AND DRUM ASSEMBLY ........................................................................................................................................... 22
TROUBLESHOOTING ................................................................................................................................ 23
TORQUE SPECIFICATIONS CHART ........................................................................................................ 24
CLUTCH INSPECTION .............................................................................................................................. 25
BILL OF MATERIAL .........................................................................................
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ADJUSTABLE OIL BRAKE BILL OF MATERIAL .................................................................................... 29
NON ADJUSTABLE OIL BRAKE BILL OF MATERIAL ........................................................................... 29
RUFNEK OIL BRAKE BILL OF MATERIAL .............................................................................................. 30
ISOMETRIC VIEW ...................................................................................................................................... 31
HYDRAULIC MOTOR, ADJUSTABLE OIL BRAKE, & CLUTCH POSITION INDICATOR ..................... 32
DESIGN SERIES 001
