Kawasaki Wheel Loader ZX690 7 Operational & Service Manual & Parts Manual
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Kawasaki Wheel Loader ZX690 7 Operational & Service Manual & Parts Manual
Language : English
Pages : 500+
Size : 152 MB
Downloadable : Yes
Format : PDF
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Table of Contents:
Kawasaki Wheel Loader ZX690 7 Operational & Service Manual & Parts Manual
Pump Device………………………………………T3-1-1
Outline of Pump Device…………………………………………….T3-1-1
Outline of Main Pump………………………………………………..T3-1-2
Operational Principle of Main Pump……………………….T3-1-2
Increasing and Decreasing of Main Pump Delivery Flow Rate…………………………………………………………………T3-1-3
Outline of Regulator (For Main Pump)…………………….T3-1-3
Control by Pump Control Solenoid Valve (Minimum Flow Rate)…………………………………………….T3-1-5
Control by Pump Control Solenoid Valve (Increase of Flow Rate)……………………………………………………………T3-1-6
Control by Pump Control Solenoid Valve (Decrease of Flow Rate)…………………………………………T3-1-7
Outline of Pump Control Solenoid Valve………………..T3-1-8
Operation of Pump Control Solenoid Valve (When in Neutral)……………………………………………………………….T3-1-8
Operation of Pump Control Solenoid Valve (When Excited)…………………………………………………………………….T3-1-8
Outline of Radiator Fan Pump…………………………………..T3-1-9
Operational Principle of Radiator Fan Pump………….T3-1-9
Increasing and Decreasing of Radiator Fan Pump Delivery Flow Rate……………………………………………….T3-1-10
Outline of Regulator (For Radiator Fan Pump)……..T3-1-11
Control by Fan Pump Control Solenoid Valve (Minimum Flow Rate)…………………………………………..T3-1-12
Control by Fan Pump Control Solenoid Valve (Increase of Flow Rate)………………………………………..T3-1-13
Control by Fan Pump Control Solenoid Valve (Decrease of Flow Rate)……………………………………….T3-1-14
Outline of Fan Pump Control Solenoid Valve……….T3-1-15
Operation of Fan Pump Control Solenoid Valve (When in Neutral)…………………………………………………T3-1-16
Operation of Fan Pump Control Solenoid Valve (When Excited)……………………………………………………..T3-1-16
Outline of Pilot Pump and Oil Cooler Fan Pump….T3-1-17
Outline of Pump Delivery Pressure Sensor……………T3-1-17
Outline of Pump Displacement Control Pressure Sensor…………………………………………………………………….T3-1-18
Swing Device………………………………………T3-2-1
Outline of Swing Device…………………………………………….T3-2-1
Outline of Swing Reduction Gear…………………………….T3-2-1
Outline of Swing Motor……………………………………………..T3-2-2
Outline of Swing Parking Brake………………………………..T3-2-4
When Brake is Released of Swing Parking Brake……T3-2-4
When Brake is Applied of Swing Parking Brake……..T3-2-4
Outline of Valve Unit…………………………………………………..T3-2-5
Operation of Make-Up Valve…………………………………….T3-2-5
Outline of Swing Relief Valve…………………………………….T3-2-7
Low-Pressure Relief Operation (Shockless Function) of Swing Relief Valve……………………………T3-2-7
High-Pressure Relief Operation (Overload Prevention) of Swing Relief Valve………………………..T3-2-7
Control Valve………………………………………T3-3-1
Outline of Control Valve…………………………………………….T3-3-1
Components in Control Valve…………………………………..T3-3-2
Main Circuit of Control Valve…………………………………..T3-3-13
Pilot Operation Control Circuit of Control Valve…..T3-3-14
External Pilot Pressure Circuit of Control Valve…….T3-3-16
Operation of Flow Combiner Valve………………………..T3-3-17
Outline of Main Relief Valve…………………………………….T3-3-20
Relief Operation of Main Relief Valve…………………….T3-3-20
Pressure Increasing Operation of Main Relief Valve…………………………………………………………………………………T3-3-21
Outline of Overload Relief Valve (With Make-Up Function)……………………………………………………………….T3-3-22
Relief Operation of Overload Relief Valve……………..T3-3-22
Make-Up Operation of Overload Relief Valve……….T3-3-23
Outline of Boom Overload Relief Valve (Low Pressure)………………………………………………………………..T3-3-23
Relief Operation of Boom Overload Relief Valve (Low Pressure)……………………………………………………….T3-3-24
Make-Up Operation of Boom Overload Relief Valve (Low Pressure)…………………………………………….T3-3-25
Outline of Regenerative Valve…………………………………T3-3-26
Operation of Boom Regenerative Valve………………..T3-3-26
Outline of Bucket Regenerative Valve……………………T3-3-28
Operation When Performing Bucket Regenerative Operation………………………………………………………………T3-3-28
Operation When Performing Bucket Regenerative Cut Operation……………………………………………………….T3-3-29
Operation When Performing Arm Regenerative Operation………………………………………………………………T3-3-30
Operation When Performing Arm Regenerative Cut Operation……………………………………………………….T3-3-32
Outline of Anti-Drift Valve……………………………………….T3-3-35
Holding Operation of Anti-Drift Valve……………………T3-3-35
Releasing Operation of Anti-Drift Valve…………………T3-3-36
Outline of Flow Rate Control Valve…………………………T3-3-36
Normal Operation of Flow Rate Control Valve……..T3-3-37
TOJBQ40-EN-00(07/02/2020)
Flow Rate Control Operation of Flow Rate Control Valve……………………………………………………………………….T3-3-38
Outline of Boom Lower Meter-In Cut Valve…………..T3-3-40
Operation of Boom Lower Meter-In Cut Valve (With the Track off the Ground)…………………………T3-3-42
Operation of Boom Lower Meter-In Cut Valve (With the Front Attachment above the Ground)…………………………………………………………………………………T3-3-44
Operation of Auxiliary Flow Combiner Valve (Auxiliary Flow Combiner Valve: OFF)……………….T3-3-47
Operation of Auxiliary Flow Combiner Valve (Auxiliary Flow Combiner Valve: ON)………………..T3-3-48
Outline of Pump 1 Bypass Shut-Out Valve and Pump 2 Bypass Shut-Out Valve………………………….T3-3-49
Operation of Pump 1 Bypass Shut-Out Valve……….T3-3-51
Operation of Pump 2 Bypass Shut-Out Valve……….T3-3-53
Pilot Valve………………………………………….T3-4-1
Outline of Pilot Valve………………………………………………….T3-4-1
Outline of Front Attachment/Swing Pilot Valve…….T3-4-1
Outline of Travel Pilot Valve………………………………………T3-4-2
Outline of Auxiliary Pilot Valve………………………………….T3-4-2
Operation of Front Attachment/Swing and Travel Pilot Valves………………………………………………………………T3-4-3
When Front Attachment/Swing and Travel Pilot Valves are in Neutral (Output Curve: A to B)………T3-4-4
During Metering or Decompressing of Front Attachment/Swing and Travel Pilot Valves (Output Curve: C to D)…………………………………………..T3-4-6
Full Stroke of Front Attachment/Swing and Travel Pilot Valves (Output Curve: E to F)……………………….T3-4-8
Operation of Auxiliary Pilot Valve…………………………….T3-4-9
When Auxiliary Pilot Valve are in Neutral (Output Curve: A to B)…………………………………………………………..T3-4-9
During Metering or Decompressing of Auxiliary Pilot Valve (Output Curve: C to D)……………………..T3-4-10
Outline of Shockless Function (Only Travel Pilot Valve)……………………………………………………………………..T3-4-12
Operation of Shockless Function……………………………T3-4-12
Travel Device………………………………………T3-5-1
Outline of Travel Device…………………………………………….T3-5-1
Outline of Travel Reduction Gear……………………………..T3-5-2
Outline of Travel Motor………………………………………………T3-5-3
Operation of Travel Motor…………………………………………T3-5-3
Outline of Parking Brake……………………………………………T3-5-4
Operation of Parking Brake (When Parking Brake is Released)……………………………………………………………..T3-5-5
Operation of Parking Brake (When Parking Brake is Applied)……………………………………………………………….T3-5-6
Outline of Travel Brake Valve…………………………………….T3-5-7
Operation of Counterbalance Valve (During Travel)………………………………………………………………………T3-5-8
Operation of Counterbalance Valve (When Descending a Slope)……………………………………………..T3-5-9
Outline of Travel Relief Valve…………………………………..T3-5-11
Operation of Travel Relief Valve (During Relief)…..T3-5-11
Operation of Travel Relief Valve (During Make-Up)…………………………………………………………………………………T3-5-11
Outline of Travel Mode Control………………………………T3-5-13
Operation of Selecting Travel Mode (Slow Speed)………………………………………………………………………………….T3-5-13
Operation of Selecting Travel Mode (Fast Speed)……………………………………………………………………………………T3-5-13
Signal Control Valve……………………………T3-6-1
Outline of Signal Control Valve…………………………………T3-6-1
Pilot Valve Side of Pilot Port………………………………………T3-6-1
Control Valve Side of Pilot Port…………………………………T3-6-2
Outline of Shuttle Valve……………………………………………..T3-6-3
Outline of Shockless Valve…………………………………………T3-6-6
Operation of Shockless Valve (During Boom Raise Operation)……………………………………………………………….T3-6-6
Operation of Shockless Valve (During Boom Lower Operation or When Stopping Boom Raise Operation (Shock Reducing Operation))……………………………………………………………………………………..T3-6-7
Operation of Flow Combiner Valve Control Spool…………………………………………………………………………………….T3-6-9
Operation of Swing Parking Brake Release Spool……………………………………………………………………………………T3-6-10
Operation of Arm Flow Rate Control Valve Control Spool………………………………………………………………………T3-6-10
Others (Upperstructure)……………………..T3-7-1
Outline of Pilot Shut-Off Shut-OffShut-OffShut-Off Solenoid Valve…………………T3-7-1
Pilot Shut-Off Shut-OffShut-OffShut-Off Lever: LOCK Position………………………….T3-7-2
Pilot Shut-Off Shut-OffShut-OffShut-Off Lever: UNLOCK Position…………………….T3-7-2
Outline of Solenoid Valve………………………………………….T3-7-3
Outline of 4-Spool Solenoid Valve Unit (Control Valve Side)……………………………………………………………….T3-7-3
Outline of 4-Spool Solenoid Valve Unit (Hydraulic Oil Tank Side)…………………………………………………………..T3-7-4
Outline of Proportional Solenoid Valve…………………..T3-7-5
Operation of Proportional Solenoid Valve (When in Neutral)……………………………………………………………….T3-7-5
Operation of Proportional Solenoid Valve (When Excited)…………………………………………………………………….T3-7-5
Outline of Radiator Fan Motor………………………………….T3-7-6
Outline of Radiator Fan Valve……………………………………T3-7-6
Relief Operation of Radiator Fan Valve……………………T3-7-7
Make-Up Operation of Radiator Fan Valve……………..T3-7-8
Outline of Oil Cooler Fan Motor………………………………..T3-7-9
Outline of Oil Cooler Fan Valve…………………………………T3-7-9
Outline of ON/OFF Solenoid Valve…………………………T3-7-11
Operation of ON/OFF Solenoid Valve (when in Neutral)………………………………………………………………….T3-7-11
Operation of ON/OFF Solenoid Valve (When in Operation)……………………………………………………………..T3-7-11
Outline of Pilot Relief Valve……………………………………..T3-7-12
Outline of Recirculation Valve…………………………………T3-7-13
Outline of Shockless Valve……………………………………….T3-7-13
TOJBQ40-EN-00(07/02/2020)
Operation of Shockless Valve………………………………….T3-7-14
Outline of Accumulator (Pilot Circuit)……………………T3-7-15
Outline of Distribution Valve…………………………………..T3-7-16
Operation of Distribution Valve………………………………T3-7-16
Others (Undercarriage)……………………….T3-8-1
Outline of Swing Bearing…………………………………………..T3-8-1
Outline of Center Joint……………………………………………….T3-8-1
Outline of Track Adjuster…………………………………………..T3-8-2
TOJBQ40-EN-00(07/02/2020)
Description:
Kawasaki Wheel Loader ZX690 7 Operational & Service Manual & Parts Manual
- To The Reader This manual is written for an experienced technician to provide technical information needed to maintain and repair this machine. The machine specification and description according to destination may be explained on this manual.
- ● Be sure to thoroughly read this manual for correct product information and service procedures. ● If you have any questions or comments, at if you found any errors regarding the contents of this manual, please contact using “Service Manual Revision Request Form” at the end of this manual. (Note: Do not tear off the form. Copy this form for usage.) • Service Material Development Center Hitach Construction Machinery Co., Ltd. • TEL: 81-29-832-9673 • FAX: 81-29-831-1162 •
- E-mail: [email protected] All information, illustrations and specifications in this manual are based on the latest product information available at the time of publication. The right is reserved to make changes at any time without notice. Additional References Please refer to the other materials (operator’s manual, parts catalog, engine technical material and Hitachi training material etc.) in addition to this manual. Manual Composition This manual consists the Technical Manual, the Workshop Manual and the Engine Manual.
- ● Information included in the Technical Manual: Technical information needed for redelivery and delivery • Operation and activation of all devices and systems, operational performance tests, and troubleshooting procedures. ● Information included in the Workshop Manual: Technical information needed for maintenance and repair of the machine • Tools and devices needed for maintenance and repair, maintenance standards, and removal / installation and assemble / disassemble procedures
- ● Information included in the Engine Manual: Technical information needed for redelivery and delivery and maintenance and repair of the machine • Operation and activation of all devices and systems, troubleshooting and assemble / disassemble procedures
Please Note:
- This is the SAME exact manual used by your dealers to fix your vehicle.
- The same can be yours in the next 2-3 mins as you will be directed to the download page immediately after paying for the manual.
- Any queries / doubts regarding your purchase, please feel free to contact [email protected]