SUPPORT AS 4169789 - Caterpillar

Personal injury or death can result from sudden machine movement.Sudden movement of the machine can cause injury to persons on or near the machine.To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.
Note: The machine must be in high speed range for this test.The oil in the system must be SAE 10W hydraulic oil. The oil temperature must be at 38°C (100°F) in order to get correct results. All speed tests are made with the engine rpm at maximum rpm.Time the machine in forward and reverse through a 30.5 m (100 ft) timing trap. The vibration system must be off. Note: The machine must be at top speed through the entire timing trap.The circuit operation is normal if the travel speeds match the speeds on the following chart. The relief valves for both the charge circuit and the propel circuit must be tested in order to be sure that the opening pressures are correct.
Table 1
Maximum Travel Time    
High Range     10 seconds    
Minimum Travel Speed    
Forward Motion    
11 km/h (600 ft/min)    
Reverse Motion    
11 km/h (600 ft/min)    Times for forward and reverse through the 30.5 m (100 ft) timing trap must match within one second.Check the following parameters if the travel speed is not correct.
Pump efficiency.
Charge relief valve setting.
Check the main relief valve setting.
Make sure that the machine is in the HIGH SPEED range.
Make sure that the linkage rod between the propel pumps is adjusted correctly on the CS/CP-433C.
Check the axle propel motor for the correct minimum displacement adjustment.