Tadano GR-300EX-3, Service Manual

Page: 69 / 157

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System Diagrams
Contents
Z-1 Hydraulic Circuit .............................. 1
1. Comparison table of hydraulic parts
(part No., part name,
coordinate and location) .............. 1
2. Hydraulic circuit diagram ........................... 2
Z-2 Torque Converter Circuit ................ 3
Z-3 Pneumatic Circuit ............................ 4
Z-4 Electric Circuit (Upper) .................... 5
1. Composition of electric circuit diagram ...... 5
2. Reading method of electric circuit
diagram ......................................... 6
2.1 Notational convention ................................. 6
2.2 Composition of switch (for reference) ........ 7
3. Comparison table (connector No., usage,
coordinate and paragraph No.) ...... 8
4. Electric circuit.......................................... 10
4.1 Electric circuit (crane) ............................... 10
4.2 Electric circuit (carrier) .............................. 11
4.3 Electric circuit (slewing table, right) .......... 12
4.4 Electric circuit (slewing table, left) ............ 13
4.5 Electric circuit (boom) ............................... 14
4.6 Electric circuit (two-blocking) .................... 15
4.7 Electric circuit (SCT) ................................. 16
4.8 Electric circuit (GSMT) .............................. 17
Z-5 Electric Circuit (Lower) .................. 18
1. Composition of electric circuit diagram .... 18
2. Comparison table (connector No., usage,
coordinate and paragraph No.) .... 19
3. Electric circuit .......................................... 20
3.1 Electric circuit (main) ................................. 20
3.2 Electric circuit (engine) .............................. 21
3.3 Electric circuit (rear steering) .................... 22
3.4 Electric circuit (head light) ......................... 23
Z-6 Hydraulic Parts Location Diagram
(Upper) .................................... 24
1. Winch .................................................... 24
2. Telescoping ............................................. 24
3. Elevation ................................................. 25
4. Slewing ................................................... 25
5. Return .................................................... 26
6. Drain .................................................... 26
7. Gauge .................................................... 27
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