Kawasaki 90ZIV Wheel Loader Service Manual

Machinery Type: 90ZIV or 90Z4 Wheel Loader
Language English
Format: PDF

Kawasaki 90ZIV Wheel Loader Repair Service Manual – 946 Pages
Kawasaki 90ZIV Wheel Loader Operating (Owners) Manual – 162 Pages
Parts Catalog – 136 Pages

Manual Details

This manual contains guidelines on repair and maintenance work for the 90ZIV Loader. All explanations, drawings and photographs are current at the time of going to press.

Repair and maintenance work should be carried out systematically and logically after thoroughly reading and understanding this manual to ensure that the shovel loader gives reliable, long-term service.

The manual is structured as follows to make it easy to use

SHOP SERVICE MANUAL CONTENT:

• 01 GENERAL OUTLINE
• 10 FUNCTIONS AND CONSTRUCTION
• 20 INSPECTION AND ADJUSTMENT
• 30 DISASSEMBLY AND ASSEMBLY
• 40 MAINTENANCE STANDARDS
  

The most important maintenance operations are those related to safety. The points that  have special significance from the safety point-of-view are indicated with a A mark in this manual. 

Operation of Torque Converter

The torque converter is between the engine and transmission, and consists of three impellers as shown in the figure. The three impellers are pump (P), turbine (T), and stator (S) impellers.
The pump is attached to the engine flywheel, and rotates together with the engine.
The turbine is connected to the torque converter output shaft to transmit the power to the transmission.
The stator is fixed to the torque converter case. The area of the impellers is filled with oil. When the engine is started, the pump impeller rotates, therefore the oil will circulate to rotate the turbine impeller ( circulation order: pump- turbine- statorpump).

Oil is redirected by the fixed stator impeller back to the pump impeller. When the turbine impeller rotates, the power will be transmitted to the output shaft.
If the engine speed/pump impeller speed stays the same but the turbine impeller speed is reduced due to the transmission load-output torque is increased.
This is ”torque multiplication”. Heat is also generated.