Case 988P & C Powersensor Hydraulics Excavators Manual in PDF provides detailed information on the operation and maintenance of the Case 988P & C Powersensor Hydraulics Excavator. It covers topics such as safety, troubleshooting, operation, maintenance, and repair. The manual includes detailed diagrams, illustrations, and photos to help the user understand the concepts and procedures. It also contains a list of recommended parts and supplies, as well as a troubleshooting guide. This manual is a must-have for anyone who owns or operates a Case 988P & C Powersensor Hydraulics Excavator.
TABLE of CONTENTS:
BASIC PRINCIPLES FOR ELECTRONICALLY ASSISTED SYSTEMS
ASSISTANCE FOR STARTING
ELECTRIC ACCELERATION
AUTOMATIC RETURN TO IDLE
ENGINE OVERHEATING SAFETY SYSTEM
"SPEED-SENSING" SYSTEM
SWING BRAKE RELEASE
SWING BRAKE
TWO-SPEED C EXCAVATORS TRAVEL AUTOMATIC SEQUENCES
P EXCAVATORS SPEED RANGE CHANGE
988 HYDRAULICS GENERAL
988 C TECHNICAL SPECIFICATIONS
LOCATION OF HYDRAULIC COMPONENTS ON 988 C
988 C SINGLE-SPEED GENERAL HYDRAULIC SYSTEM
TECHNICAL SPECIFICATIONS OF THE 988 P
LOCATION OF HYDRAULIC COMPONENTS ON THE 988 P
988 P GENERAL HYDRAULIC SYSTEM
988 TANK - FILTERS - COOLER
THE TANK
SHUT-OFF VALVE - FILTERS
THE OIL COOLER - THE THERMOSTATIC SHUT-OFF VALVE
HYDRAULIC PUMPS 988
WORKING PRINCIPLES
ENGINE / PUMPS COUPLINGS
LOCATION OF PORTS AND ADJUSTMENT POINTS
ASSISTANCE AND STEERING / BRAKING PUMPS
MAIN PUMP ASSEMBLY
THE ANTI-SURGE VALVE IN THE "LOAD SENSING" INFORMATION CIRCUIT
THE PROPORTIONAL VALVE
SYMBOLIC SCHEMATIC OF HYDRAULIC POWER UNIT
988 PILOT SYSTEM
C EXCAVATORS ELECTRO-CONTROL VALVE BLOCK
P EXCAVATORS ELECTRO-CONTROL VALVE BLOCK
P35 PRESSURE LIMITER
EMERGENCY FOOT PUMP/MANIFOLD
CONTROL LEVERS
C TRAVEL CONTROL BLOCK
P TRAVEL CONTROL BLOCK
P TRAVEL MOVEMENTCONTROL PANEL
CONTROL PEDALS
988 ATTACHMENT CONTROL VALVES BLOCK
THE ATTACHMENT CONTROL VALVES BLOCK
THE INLET PLATE - THE RELIEF VALVE
THE CONTROL VALVE SECTION
THE SAFETY VALVES - THE PRESSURE SELECTORS
THE FLOW REGULATOR (BALANCE VALVE)
OPERATION OF A CONTROL VALVE SECTION
PRESSURE LIMITER BLOCK P10
988 SWING
SWING CONTROL VALVE BLOCK
RELIEF VALVE
CONTROL VALVE SECTION
CLOSING PLATE
FORCE FEED AND SAFETY BLOCK
HYDRAULIC SWING MOTOR
THE AUTOMATIC SWING BRAKE
ACCUMULATOR BLOCK ON CONTROL VALVE CIRCUITS
STEERING/BREAK - LOCKING FRONT AXEL P EXCAVATORS
THE BRAKE UNIT
SERVICE AND WORKING BRAKES
PARKING BRAKE
POSITION OF SOLENOID - VALVES ON SUPPORTS
STEERING BOX
STEERING CYLINDER