
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.........................................................................................Error! Bookmark not defined.
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