PANEL AS 4567499 - Caterpillar

Illustration 5 g03387560
Right Hand electrohydraulic control (joystick) for the work tool
(7) Thumb wheel for the auxiliary hydraulic control
Disengage the parking brake. Roll the thumb wheel (7) fully upward in order to operate the auxiliary circuit at the highest flow rate that is possible.
Set the pump outlet pressure to the specified test value by slowly adjusting the load valve on the flow meter. Note: If necessary, readjust the pump outlet pressure and engine speed to maintain the specified test values throughout the test.
Refer to Table 3 for the flow specification. Troubleshoot the pump if the specification is not met.
Unload the pump by adjusting the flow meter valve to the fully open position.
Stop the machine. Remove the Multitach Tool Gp (A) and the Portable Hydraulic Tester (B). Work Tool Pump (High Flow) Test Procedure
Specifications
Table 5
High Flow Work Tool Pump Output
Oil Temperature Range
50° 10°C (122° 18°F) Outlet Pressure
18000 1000 kPa (2610 145 psi)
Machine Model WT Jumper RPM Minimum Flow
236D, 242D
257D, 259D 377-5466 2000 10 RPM 78 L/min (21 US gpm)
Table 6
High Flow Work Tool Pump Output
Oil Temperature Range
50° 10°C (122° 18°F) Outlet Pressure
10000 345 kPa ( 1450 50 psi)
Machine Model WT Jumper RPM Minimum Flow
246D, 262D
277D, 279D
287D, 289D - 1800 10 RPM 57 L/min (15 US gpm)
272D, 272D2
297D, 297D2
299D, 299D2 - 1800 10 RPM 57 L/min (15 US gpm)
246D, 262D
277D, 279D
287D, 289D 377-5466 1800 10 RPM 78 L/min (21 US gpm)
272D, 272D2
297D, 297D2
299D, 299D2 377-5466 1800 10 RPM 78 L/min (21 US gpm)
All XHP Models - 1800 10 RPM 57 L/min (15 US gpm)
All XHP Models 377-5466 1800 10 RPM 96 L/min (25.3 US gpm) Required Tools
Table 7
Required Tools
Item Part Number Description Qty
A 377-5466 Plug As
Highflow Jumper 1
B 4C-9910 Portable Hydraulic Tester 1
Illustration 6 g03387446
Connector for the work tool harness. (1/2 Inch Coupler).
(4) "A2" Coupling for the auxiliary hydraulic control.
(5) "EC" Connector for the work tool harness.
(6) "A1" Coupling for the auxiliary hydraulic control. Test Procedure
Before any tests are performed, prepare the machine. Refer to Testing and Adjusting, "Machine Preparation". Before any tests are performed, visually inspect the complete hydraulic system for oil leaks and damaged parts. Refer to Testing and Adjusting, "Visual Inspection".
Install Tooling (B) between the "A2" coupling (4) and the "A1" coupling (6). These couplings are located on the left-hand side lift arm. Completely unload the load valve on the 4C-9910 Portable Hydraulic Tester. Note: Install the flow meter onto the machine so that the hydraulic oil flows out of the "A2" coupling (4) into the "A1" coupling (6).
If required, install plug (A) into the connector (5) for the work tool harness that is located on the left-hand lift arm. Install the specified work tool jumper harness as required.
Sit in the seat. Lower the armrest. Engage the parking brake.
Start the engine. Maintain the engine speed to the specified test value.
The oil in the hydraulic system must be at an