Brand: CASE Construction / JI Case
Product Range: Backhoe Loader
Publication Type: Service Manual Section XIV
Equipment Model: 32S Side Shift Backhoe
Serial Number: -
Publication Number: 9-70011K
Issued: Printed in U.S.A.
Language: English
Pages: 56
File Format: PDF Document
Additional Information: For Engine Repair, See the Engine Service Manual.
Introduction
This backhoe, in addition to its outstanding digging characteristics. can be shifted from side to side. The backhoe can be shifted in either direction without the operator leaving his seat. The total amount of shift from one side to the other is 46 inches.
Once shifted, the backhoe is held in position by four hydraulic locks. The locks are pressurized when the bucket is extended. Thus the hydraulic locks are frequently repressurized during backhoe operation, virtually eliminating any possibility of slippage.
The six-section control valve, located in the mounting frame, regulates and controls the hydraulic operation of the backhoe. This valve contains a regenerative system that eliminates cavitation (voids). Parts subject to high "mechanically" produced pressures are protected by secondary relief valves. Operation of this valve is explained on pages XIV-7 to XIV-11.
Table of Contents
General Description
Serial Number
Lubrication
Specifications
Backhoe Valve Operation
Hydraulic Locking System
General Description
Locking the Sliding Frame
Servicing Backhoe Valve
Re1noving Control Valve
Regeneration Check Valve
Regeneration Spool
Valve Sections and Spools
Check Valves
Secondary Relief Valves
Assembling Valve Sections
Trouble Shooting
Testing Relief Valves with System Pressure
Main Relief Valve
Boom Down and Swing Criss-Cross Relief Valves with System Pressure
Testing Secondary Relief Valves with Hand Pump
Checking Pressures with Control Valve Removed from Backhoe
Adjusting Backhoe Relief Valves
Servicing Hydraulic Locking System
Control Valve
Locking Cylinders
Trouble Shooting
Servicing Hydraulic Cylinders
Specifications
Removing Cylinders
Disassembling Cylinders
Inspection
Assembly of Packing Gland
Assembly of Piston Packing
Installing Piston Rod
Installing Cylinders
Installing Replacement Piston Rod Eye Assemblies
Trouble Shooting
Servicing Backhoe Mechanical Components
Removing the Backhoe
Installing the Backhoe
Splitting the Backhoe
Reinstalling a "Split" Backhoe
Itear Counterweight
Removing Dipper Arm
Removing Bucket
Removing Boom
Trenching Bucket Adjustment
Lower Pivot Bushing
Bushings
Servicing Bucket Edges and Teeth
Standard Torques
