TABLE OF CONTENTS
HST
CK22/CK22H
1. SPECIFICATIONS .................................................................... 5-2
2. OPERATING PRINCIPLE ........................................................ 5-3
2.1 Power train diagram .......................................................... 5-3
2.2 Structure ............................................................................ 5-5
2.2.1 Features .................................................................. 5-5
2.2.2 Appearance of hydraulic transmission and circuit
................................................................................. 5-5
2.2.3 Cross sectional drawing of the hydrostatic trans-
mission .................................................................... 5-6
2.3 Functions of each component .......................................... 5-7
2.3.1 Hydraulic pump ....................................................... 5-7
2.3.2 Hydraulic motor ....................................................... 5-7
2.3.3 Charge pump ........................................................... 5-8
2.3.4 Check valve and high-pressure relief valve ........... 5-8
2.3.5 Neutral valve ............................................................ 5-9
2.4 Operation control ............................................................. 5-10
2.4.1 Neutral (HST pedal: stop) .................................... 5-10
2.4.2 Forward ................................................................... 5-11
2.4.3 Reverse .................................................................. 5-12
3. TROUBLESHOOTING ............................................................ 5-13
3.1 Hydrostatic transmission ............................................... 5-13
4. SERVICING ............................................................................. 5-17
4.1 Exploded view .................................................................. 5-17
4.2 Disassembly .................................................................... 5-19
4.3 Assembly ......................................................................... 5-20
4.4 HST pedal ......................................................................... 5-22
Summary of Contents for CK22
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