Relief Valve (Line)
Show/hide table
Machine Effectivity of the Line Relief Valves (1)     | ||
Relief Valve     | 938G Series II Wheel Loaders     | IT38G Series II Integrated Toolcarriers     |
Tilt (head end)     | C     | B     |
Tilt (rod end)     | A     | C     |
Auxiliary (rod end)     | A     | A     |
Auxiliary (head end)     | A     | A     |
Pin Coupler (rod end)     | -     | A     |
Pin Coupler (head end)     | -     | A     |
Show/hide table
( 1 ) | For the part numbers and pressure setting of the line relief valves, refer to the specifications that follow. |
(A) 186-0908 Relief Valve
- Pressure setting at a flow of 20 L/min (5.3 US gpm) ... 22100 ± 350 kPa (3200 ± 50 psi)
Show/hide table
Illustration 1 | g00921139 |
(1) Tighten the locking nuts to the following torque. ... 14 ± 2 N·m (124 ± 18 lb in)
(2) Tightening torque ... 45 ± 5 N·m (33 ± 4 lb ft)
(3) Torque at installation ... 45 ± 5 N·m (33 ± 4 lb ft)
(B) 186-0901 Relief Valve
- Pressure setting at a flow of 20 L/min (5.3 US gpm) ... 9000 ± 350 kPa (1305 ± 50 psi)
Show/hide table
Illustration 2 | g00921139 |
(1) Tighten the locking nuts to the following torque. ... 14 ± 2 N·m (124 ± 18 lb in)
(2) Tightening torque ... 45 ± 5 N·m (33 ± 4 lb ft)
(3) Torque at installation ... 45 ± 5 N·m (33 ± 4 lb ft)
(C) 185-7712 Relief Valve
- Pressure setting at a flow of 4 L/min (1.1 US gpm) ... 25900 ± 350 kPa (3750 ± 50 psi)
Show/hide table
Illustration 3 | g00921146 |
(4) Tighten the locking nut to the following torque. ... 24 ± 2 N·m (212 ± 18 lb in)
(5) Torque at installation ... 45 ± 5 N·m (33 ± 4 lb ft)
Caterpillar Information System:
AD55 Underground Articulated Truck Engine Cold Mode
AD30 Underground Articulated Truck Starting the Engine
3516B Engine for Caterpillar Built Machines Event Codes
3516B Engine for Caterpillar Built Machines Electrical Connectors and Functions
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1276 - FMI 06
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1276 - FMI 05
Installation of 2Q-7848 Axle Oil Cooler (Kit-Axle Oil Cooler ) {1365} Installation of 2Q-7848 Axle Oil Cooler (Kit-Axle Oil Cooler ) {1365}
3500 and 3500B High Displacement Engines for Caterpillar Built Machines Water Pump - Assemble
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1275 - FMI 06
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1275 - FMI 05
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1276 - FMI 03
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1275 - FMI 03
IT38G Series II Integrated Toolcarrier and 938G Series II Wheel Loader Electrical Connector - Inspect
IT38G Series II Integrated Toolcarrier and 938G Series II Wheel Loader Wiring Harness (Open Circuit) - Test
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1275 - FMI 13
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1276 - FMI 13
IT38G Series II Integrated Toolcarrier and 938G Series II Wheel Loader Wiring Harness (Short Circuit) - Test
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1281 - FMI 13
IT38G Series II Integrated Toolcarrier and 938G Series II Wheel Loader Electronic Control Module (ECM) - Flash Program
AP600D, AP655D, BG600D and BG655D Asphalt Pavers Electronic Control Module (ECM) - Replace
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1277 - FMI 13
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System MID 027 - CID 1278 - FMI 13
Installation Instructions for an 2Q-7856 Air Conditioner Gp (Kit) for the 950G Series II and the 962G Series II Wheel Loaders{7320} Installation Instructions for an 2Q-7856 Air Conditioner Gp (Kit) for the 950G Series II and the 962G Series II Wheel Loaders{7320}
Installation of the 2Q-7877 Control Valve (Kit-3rd Valve) and the 2Q-7897 Control Valve (Kit-3rd Valve){5051} Installation of the 2Q-7877 Control Valve (Kit-3rd Valve) and the 2Q-7897 Control Valve (Kit-3rd Valve){5051}