CAT Rotary Track Drills Section 7 Hydraulic Systems Technical Manual – PDF DOWNLOAD

Description

CAT Rotary Track Drills Section 7 Hydraulic Systems Technical Manual – PDF DOWNLOAD

DESCRIPTION

CAT Rotary Track Drills Section 7 Hydraulic Systems Technical Manual – PDF DOWNLOAD

Language : English
Pages : 174
Downloadable : Yes
File Type : PDF
Size:17.4 MB

TABLE OF CONTENTS:

CAT Rotary Track Drills Section 7 Hydraulic Systems Technical Manual – PDF DOWNLOAD

Section 7 Contents 7-3
Hydraulic Symbols 7-6
Pressure Setting Sequence 7-8
Pressure Setting Sequence 7-8
Hydraulic Tank 7-10
Hydraulic Tank 7-10
Return Hydraulic Filters 7-11
Main Return and Case Drain Filters 7-12
Routine Maintenance 7-13
Changing Filter Elements 7-13
Main Hydraulic Pumps 7-14
Pump Identification 7-14
Right Track, Left Track / Rotation Pumps 7-15
Hydraulic Piston Pumps – Removal and Replacement 7-15
Main Pumps 7-16
AA4VG180 Hydraulic Pump EP2 Control 7-16
AA4VG EP Controller 7-18
Technical Data 7-19
EP (24V DC) Control 7-21
Schematic Drawings – Standard Model 7-21
Technical Data 7-22
Port Locations 7-24
Connections 7-24
Main Pump Adjustments 7-25
Change Pressure, High Pressure, POR and Zero Position Settings 7-26
Set Change Pressure – 450psi (31bar) 7-27
Set Crossover Relief (High Pressure) – 5500psi (380bar) 7-27
Set Pressure Override (POR) – 5000psi (345bar) 7-28
Mechanical Zero Position 7-29
Hydraulic Centreing 7-30
Removal and Inspection of Charge Pump 7-31
Removal and Installation of Shaft Seal 7-32
Routine Maintenance 7-33
Maintenance 7-34
Charge Filter 7-36
Routine Maintenance 7-36
Changing Filter Elements 7-37
Main Pumps Circuit 7-38
Main Pumps Circuit 7-38
Rotation/Tram Motor Circuit 7-39
Loop Filters 7-40
Routine Maintenance 7-40
Changing Filter Elements 7-43
Rotation Circuit 7-44
Rotation Circuit 7-45
Rotary Drive Gearbox Motor 7-46
SKSS Hydraulic Systems 7-3
Section 7 Contents
BI620437
Rotary Drive Gearbox Motor – Test and Repair 7-46
Shaft Seal Replacement 7-47
Trouble Shooting 7-49
Tram Circuit 7-51
Tram Circuit 7-51
Feed and Auxiliary Pump Circuit 7-53
Hydraulic Piston Pumps – Removal and Replacement 7-53
Feed and Auxiliary Functions Pump 7-56
Repair Instructions 7-57
Pump Replacement – Start Up 7-58
Hydraulic Systems 7-60
Auxiliary and Feed Circuits 7-60
Main Control Valves 7-61
Valve Stand Assembly 7-61
Pilot Control Manifold 7-62
Pilot Control Manifold 7-62
Electro Proportional Relief Valve 7-70
Proportional Valve Set-up 7-71
Proportional Pulldown 7-71
OEM Electro Proportional Mast Raise /Jack Valve 7-72
Technical Data 7-72
Hoist and Pulldown Control 7-73
M4-22 Valve 7-75
M4-22 Valve Schematic 7-76
Holdback Control 7-80
Jack Control and Mast Elevating Circuit 7-81
OEM Controllers / EP Levers 7-82
Jack Control and Mast Elevating Circuit 7-83
Jacks and Mast / Water and Foam Injectors / Hoist and Pulldown Valves 7-84
Jack Control and Mast Elevating Control Valve 7-84
M4 Series Valve 7-85
Proportional Pressure Reducing Valve 7-86
Function 7-86
Pulldown and Hoist Control Valve 7-87
Counterbalance Valves 7-88
Counterbalance Valve Adjustment 7-88
Levelling Jack Cylinders 7-89
Counterbalance Valve Test Procedure 7-90
Mast Elevating Cylinders 7-91
Counterbalance Valve Test Procedure 7-92
Auxiliary Functions Circuit 7-93
Auxiliary Functions Circuit 7-93
4WE6 – Auxiliary Functions and Mast Valves 7-95
Repair Kits 7-97
Exploded View of 4WE6 7-98
Hydraulic Operated Breakout Wrench 7-99
Setting of HOBO Sequence Valves 7-100
7-4 SKSS Hydraulic Systems
Section 7 Contents
BI620437
HOBO Float Valve 7-100
Hydraulic Systems 7-101
Pipe Positioner 7-101
Pipe Safety Arm 7-102
Hydraulic Gear Pumps – Removal and Replacement 7-103
Hydraulic Gear Pumps – Repairs, Operation, Specifications and Adjustment 7-103
Hydraulic Gear Pumps – Shaft Seal Removal and Replacement 7-104
Tool List 7-105
Cooler Fan Circuit 7-106
Fan Motor Circuit 7-106
Cooler Fan Motor 7-109
Hydraulic Motor 7-109
Hydraulic Thermostatic Valve 7-113
Hydraulic Cooler – Thermal Valve 7-113
Central Lube 7-114
Auto Lube 7-114
Hydraulic Circuit 7-115
Air Conditioner Compressor Drive Circuit 7-116
Air Conditioner Drive Motor 7-117
Design 7-117
Operational Check 7-117
Shaft Seal Replacement 7-118
Screw Tightening Torque 7-118
Gear Backlash 7-118
Specifications 7-118
Parts List 7-119
Water Injection / Foam Injection Circuit 7-120
Water Injection / Foam Injection Valve 7-121
M4 Series Valves 7-122
Water Pump Motor 7-123
Water Pump Motor Repair Information 7-123
Shaft Seal Repair 7-124
Hydraulic Cylinder Repair 7-127
Hydraulic Cylinders 7-127
General Information 7-128
H Head 7-130
N Head 7-131
Z Head 7-132
Z Head (Two Piece) 7-133
K Head 7-134
M Head 7-135
Z Piston 7-136
Z Piston (Threaded) 7-137
H and K Piston 7-138
M Piston 7-139
N Piston 7-142
Notes 7-143

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CAT ROTARY TRACK DRILLS SECTION 7 HYDRAULIC SYSTEMS TECHNICAL MANUAL – PDF DOWNLOAD:

PLEASE NOTE:

• This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
• This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
• Require some other service manual or have any queries: please WRITE to us at [email protected]

S.M