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GEARBOX DISASSEMBLY-REASSEMBLY MANUAL
770 HY-635 HY
370 HY-535 HY
HB 35 HY
1

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Summarization of Contents

Gearbox Disassembly
Initial Machine Preparation
Steps for preparing the machine, including removing wheels and draining oil.
Control System Component Removal
Disconnecting and removing control cables and related supports.
Kanzaki Group and Column Support Detachment
Removing the steering column support and the Kanzaki group control plate.
Rear Cover and Heat Exchanger Removal
Removing the gearbox rear cover and the heat exchanger shroud.
Gearbox Rear Cover Disassembly
Internal Gear and Bearing Extraction
Procedures for removing internal gears, bearings, and shafts from the gearbox.
Kanzaki Group and Flange Separation
Detaching the Kanzaki group from the flange and removing covers.
Oil Seal and Seeger Ring Extraction
Extracting the oil seal and internal seeger ring.
Gearbox Rear Cover Assembly
Shaft and Bearing Assembly
Fitting shafts with bearings and essential seals into the gearbox housing.
Gear and PTO Component Installation
Mounting gears, PTO shaft, and control levers during assembly.
Final Assembly and Torque Specifications
Installing remaining components, covers, and applying torque specifications.
Final Checks and Oil Refill
Finalizing assembly, refilling oil, and testing gearbox operation.