EX355
T4-5-11
COMPONENT TEST
OVERLOAD RELIEF VALVE SET PRES-
SURE
Summary:
1. The circuit pressure must be increased by applying
an external force while blocking the return circuit
from the control valve. This measuring method is
hazardous and the results obtained with this
method are unreliable.
2. Pressure setting of the overload relief valve must
be made at a specified oil flow rate normally far
smaller than the main pump delivery flow rate.
Accordingly, even if the main relief valve set
pressure can be reset higher than the overload
relief valve set pressure, the main pump supplies
too much oil to correctly measure the setting
pressure of the overload relief valve.
For this reason, in order to correctly measure the
set pressure of the overload relief valve, the over-
load relief valve unit must be removed from the
machine and tested on a test stand.
3. If the overload relief valve performance is to be
checked on the machine, measure the main relief
set pressure using both a pressure gauge and Dr.
Ex.
Preparation:
Connect Dr. Ex. Select the monitor function:
1. Properly shut down the engine.
2. Press the air release valve on top of the hydraulic
oil tank to release any remaining pressure.
3. Remove the plug from the main pump delivery port.
Install adapter (
75301519
), hose (
75301523
) and
pressure gauge (
75301524
) on the port.
: 6 mm
Select Dr. Ex to read the main pump delivery
pressure monitoring.
4. Start the engine. Confirm that no oil leakage is
observed at the pressure gauge connection.
5. Maintain the hydraulic oil temperature at 50 ± 5 °C
(122 ± 9 °F).
SM6111
Pressure
Check Ports
Содержание EX355 Tier2
Страница 22: ...T1 2 10 EX355 COMPONENT LAYOUT NOTES ...
Страница 37: ...T2 1 14 EX355 CONTROL SYSTEM NOTES ...
Страница 47: ...T2 2 10 EX355 HYDRAULIC SYSTEM NOTES ...
Страница 73: ...T2 3 26 EX355 ELECTRICAL SYSTEM NOTES ...
Страница 86: ...T3 1 12 EX355 PUMP DEVICE NOTES ...
Страница 94: ...T3 2 8 EX355 SWING DEVICE NOTES ...
Страница 113: ...EX355 T3 3 19 CONTROL VALVE Port b Check Valve 2 Port a Boom Cylinder Port c Check Valve 1 SM6068 ...
Страница 134: ...T3 4 10 EX355 PILOT VALVE NOTES ...
Страница 146: ...T3 5 12 EX355 TRAVEL DEVICE NOTES ...
Страница 156: ...T3 7 4 EX355 OTHER COMPONENTS Undercarriage NOTES ...
Страница 195: ...T4 2 6 EX355 STANDARD NOTES ...
Страница 199: ...T4 3 4 EX355 ENGINE TEST NOTES ...
Страница 215: ...T4 4 16 EX355 EXCAVATOR TEST NOTES ...
Страница 237: ...T4 5 22 EX355 COMPONENT TEST NOTES ...
Страница 265: ...T5 2 12 EX355 COMPONENT LAYOUT NOTES ...
Страница 325: ...T5 4 52 EX355 TROUBLESHOOTING B ...
Страница 372: ...EX355 T5 6 9 ELECTRICAL SYSTEM INSPECTION ...
Страница 380: ...EX355 T5 6 17 ELECTRICAL SYSTEM INSPECTION 5 Identify the relay on the terminal board 6 Replace the relay SM5622 ...
Страница 385: ...T5 6 22 EX355 ELECTRICAL SYSTEM INSPECTION NOTE ...
Страница 425: ...W1 1 4 EX355 PRECAUTIONS FOR DISASSEMBLY AND ASSEMBLY NOTES ...
Страница 450: ...W2 3 8 EX355 MAIN FRAME NOTES ...
Страница 454: ...W2 4 4 EX355 PUMP DEVICE SM5510 ...
Страница 456: ...W2 4 6 EX355 PUMP DEVICE SM5510 ...
Страница 458: ...W2 4 8 EX355 PUMP DEVICE ASSEMBLE PUMP DEVICE SM6205 SM6206 ...
Страница 460: ...W2 4 10 EX355 PUMP DEVICE SM6205 SM6206 ...
Страница 462: ...W2 4 12 EX355 PUMP DEVICE SM6205 SM6206 ...
Страница 464: ...W2 4 14 EX355 PUMP DEVICE SM6205 SM6206 ...
Страница 468: ...W2 4 18 EX355 PUMP DEVICE SM6210 ...
Страница 470: ...W2 4 20 EX355 PUMP DEVICE SM6210 ...
Страница 472: ...W2 4 22 EX355 PUMP DEVICE SM6210 ...
Страница 474: ...W2 4 24 EX355 PUMP DEVICE SM5511 SM6219 ASSEMBLE MAIN PUMP ...
Страница 476: ...W2 4 26 EX355 PUMP DEVICE SM5511 SM6219 ...
Страница 478: ...W2 4 28 EX355 PUMP DEVICE SM5511 SM6219 ...
Страница 480: ...W2 4 30 EX355 PUMP DEVICE SM5511 SM6219 ...
Страница 482: ...W2 4 32 EX355 PUMP DEVICE SM5511 SM6219 ...
Страница 484: ...W2 4 34 EX355 PUMP DEVICE SM5511 SM6219 ...
Страница 486: ...W2 4 36 EX355 PUMP DEVICE SM5511 SM6219 ...
Страница 498: ...W2 4 48 EX355 PUMP DEVICE NOTES ...
Страница 532: ...W2 5 34 EX355 CONTROL VALVE NOTES ...
Страница 540: ...W2 6 8 EX355 SWING DEVICE SM6277 31 18 17 20 19 21 3 24 27 25 26 10 ...
Страница 542: ...W2 6 10 EX355 SWING DEVICE SM6277 31 19 2 1 23 22 ...
Страница 566: ...W2 7 12 EX355 PILOT VALVE 11 19 17 18 1 2 3 8 13 14 16 15 SM1114 ...
Страница 572: ...W2 7 18 EX355 PILOT VALVE 8 6 7 1 3 4 5 9 21 2 SM1119 ...
Страница 586: ...W2 7 32 EX355 PILOT VALVE NOTES ...
Страница 592: ...W2 8 6 EX355 PILOT SHUT OFF VALVE NOTES ...
Страница 602: ...W2 10 6 EX355 SOLENOID VALVE UNIT NOTES ...
Страница 621: ...W3 2 10 EX355 TRAVEL DEVICE SM5108 44 8 13 12 1 45 46 28 27 25 26 24 36 38 30 31 32 ...
Страница 623: ...W3 2 12 EX355 TRAVEL DEVICE 29 SM5108 42 44 8 13 12 1 2 23 8 9 10 43 17 11 15 14 41 40 21 20 22 18 19 16 30 31 32 ...
Страница 627: ...W3 2 16 EX355 TRAVEL DEVICE SM5502 3 4 5 20 7 8 9 10 12 14 13 16 11 6 ...
Страница 633: ...W3 2 22 EX355 TRAVEL DEVICE SM5111 Cross Section A 36 38 40 24 23 34 35 28 37 39 22 21 19 30 29 31 33 ...
Страница 643: ...W3 2 32 EX355 TRAVEL DEVICE NOTES ...
Страница 651: ...W3 3 8 EX355 CENTER JOINT NOTES ...
Страница 655: ...W3 4 4 EX355 TRACK ADJUSTER 8 14 13 11 17 12 SM6284 ...
Страница 657: ...W3 4 6 EX355 TRACK ADJUSTER 3 4 8 10 16 15 14 SM6284 ...
Страница 659: ...W3 4 8 EX355 TRACK ADJUSTER 3 6 4 8 10 9 SM6284 18 ...
Страница 667: ...W3 4 16 EX355 TRACK ADJUSTER NOTES ...
Страница 671: ...W3 5 4 EX355 FRONT IDLER 1 SM6290 2 4 3 5 6 8 12 7 6 3 4 1 2 9 10 11 ...
Страница 682: ...EX355 W3 6 7 UPPER AND LOWER ROLLER DISASSEMBLE UPPER ROLLER NOTE Replace the upper roller as an assembly SM1241 ...
Страница 689: ...W3 6 14 EX355 UPPER AND LOWER ROLLER NOTES ...
Страница 708: ...W4 1 10 EX355 FRONT ATTACHMENT NOTES ...
Страница 716: ...W4 1 18 EX355 FRONT ATTACHMENT NOTES ...
Страница 744: ...W4 2 28 EX355 CYLINDERS NOTES ...
Страница 763: ...EX355 W5 1 17 GENERAL INFORMATION Oil Pan N m kgf m Ib ft SM7010 ...
Страница 765: ...EX355 W5 1 19 GENERAL INFORMATION Water Pump N m kgf m Ib ft SM7012 ...
Страница 815: ...EX355 W5 3 35 ENGINE OVERHAUL Disassembly SM7093 1 Camshaft gear 2 Knock pin 3 Camshaft ...
Страница 855: ...EX355 W5 3 75 ENGINE OVERHAUL OIL PAN Removal 1 Clip 4 Oil strainer 2 Oil pan 5 Gasket 3 Gasket SM7187 ...
Страница 861: ...EX355 W5 3 81 ENGINE OVERHAUL PISTON Removal 1 Bearing cap 3 Bearings 2 Bolt 4 Piston with connecting rod SM7199 ...
Страница 883: ...EX355 W5 3 103 ENGINE OVERHAUL Reassembly 1 Crankshaft 3 Crankshaft gear 2 Pin SM7239 ...
Страница 894: ...W5 3 114 EX355 ENGINE OVERHAUL NOTE ...
Страница 908: ...W5 5 2 EX355 ENGINE COOLING SM7287 THERMOSTAT Disassembly 1 Water outlet pipe 3 Gaskets 2 Thermostats ...
Страница 918: ...W5 6 4 EX355 ENGINE FUEL FUEL FILTER Disassembly 1 Fuel filter 3 Fuel filter body 2 Overflow valve SM7305 ...
Страница 938: ...W5 7 6 EX355 ENGINE INDUCTION NOTE ...
Страница 958: ...W5 8 20 EX355 STARTING AND CHARGING NOTE ...