BRACE ASSEM. 9S0427 - Caterpillar

Personal injury or death can result from machine movement.When tests and adjustments are made to the transmission or the torque converter, the parking brake must be disengaged.To prevent movement of the machine and personal injury perform the procedure that follows.
Machine Preparation
Move the machine to a smooth horizontal location. Move away from working machines and personnel. Lower the attachments to the ground.
Allow only one operator on the machine. Keep all personnel away from the machine or in the view of the operator.
Engage the parking brake.Stall Test
Shift the transmission to the NEUTRAL position.
Start the engine. Warm the transmission oil to normal operating temperature of approximately 95° 20°C (200° 35°F).
Place the work tool flat on the ground.
Fully depress the right side service brake pedal. Hold the brake pedal in the depressed position for the duration of the test.
Disengage the STIC control lock.
Release the parking brake.
To make sure that the transmission oil does not overheat, do not keep the torque converter in a stall condition for more than 30 seconds. After the torque converter stall test, reduce engine speed to low idle, move the transmission control to neutral and increase the engine speed to approximately 1500 rpm to cool the oil.
Place the transmission in THIRD GEAR.
Move the transmission direction switch to the REVERSE position.
Increase the engine speed to high idle.
Allow the engine speed to stabilize. Record the engine rpm.
Reduce the engine speed to low idle.
Shift the transmission to the NEUTRAL position.The correct stall speed in third speed reverse is listed in the tables that follow.
Table 1
Machine     Engine Speed (RPM)    
990 Series II     1880 55    
844     1910 75    Incorrect stall speeds indicate one or more of the following conditions.
Incorrect engine performance
Incorrect transmission performance
Incorrect performance of the torque converter
Change in the parasitic loads: fan circuit and pumps