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Komatsu WA180-1 Wheel Loader Service Manual Workshop Guide
Komatsu WA180-1 Wheel Loader Service Manual Workshop Guide
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$57.00 USD
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$57.00 USD
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Format : PDF
SUPPLIED AS DOWNLOADABLE LINK
Manual Included:
Shop Manual:
505 pages and 514 pages
Specifications:
Brand:
Komatsu
Model:
WA180-1
Type:
Loader
Serial Number:
10001 and up
Manuals:
Shop Manual
Publication Number:
SEBMU4170105 and SEBM034906
Language:
English
Format:
PDF
Description
Table of Contents
Engine
Power Train
Steering System
Brake System
Work Equipment System
Electrical and Electronic System
Others
Structure and Functions
Testing and Adjusting
Disassembly and Assembly
Maintenance Standard
Others
Manual Extract MAIN REGULATOR VALVE:
FUNCTION
• The main regulator valve serves to regulate the oil pressure in the circuit and supply pressurized oil to the clutch and the cut-off valve. The valve also delivers relieved oil to the torque converter and solenoid valve.
OPERATION
• The oil delivered from the pump enters orifice "a"
and reaches the spool rear side through regulator spool (1 ).
• The oil that has reached the spool rear side is pressurized. When the oil is pressurized to the preset pressure, it moves the regulator spool to the left, overcoming the tension of springs (2) and (3). This, in turn, opens the pump A and torque converter B port, allowing the oil to flow into the torque converter circuit.
• If the oil pressure in the circuit goes up, exceeding the set pressure, the regulator spool (1) moves further to the left, causing the pump A and drain C ports to open. Thereby, the abnormally highly pressurized oil relieves itself into the drain opening.
SUPPLIED AS DOWNLOADABLE LINK
Manual Included:
Shop Manual:
505 pages and 514 pages
Specifications:
Brand:
Komatsu
Model:
WA180-1
Type:
Loader
Serial Number:
10001 and up
Manuals:
Shop Manual
Publication Number:
SEBMU4170105 and SEBM034906
Language:
English
Format:
Description
Table of Contents
Engine
Power Train
Steering System
Brake System
Work Equipment System
Electrical and Electronic System
Others
Structure and Functions
Testing and Adjusting
Disassembly and Assembly
Maintenance Standard
Others
Manual Extract MAIN REGULATOR VALVE:
FUNCTION
• The main regulator valve serves to regulate the oil pressure in the circuit and supply pressurized oil to the clutch and the cut-off valve. The valve also delivers relieved oil to the torque converter and solenoid valve.
OPERATION
• The oil delivered from the pump enters orifice "a"
and reaches the spool rear side through regulator spool (1 ).
• The oil that has reached the spool rear side is pressurized. When the oil is pressurized to the preset pressure, it moves the regulator spool to the left, overcoming the tension of springs (2) and (3). This, in turn, opens the pump A and torque converter B port, allowing the oil to flow into the torque converter circuit.
• If the oil pressure in the circuit goes up, exceeding the set pressure, the regulator spool (1) moves further to the left, causing the pump A and drain C ports to open. Thereby, the abnormally highly pressurized oil relieves itself into the drain opening.
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