convertidor calado 1 ex

8/18/2019 Convertidor Calado 1 Ex

1/3

844 Wheel Tractor 2KZ00001-UP (MACHINE) POWERED BY 3412E Engine(SEBP2765 - 71) - Estructura del documento

Producto: WHEEL DOZERModelo: 844 WHEEL DOZER 2KZConfiguración: 844 Wheel Tractor 2KZ00001-UP (MACHINE)

POWERED BY 3412E Engine

Pruebas y Ajustes 90 Wheel Loader, 990 Series II Wheel Loader and 844 Wheel Dozer Power Train úmero de medio -SENR6645-04 Fecha de publicación -01/03/2004 Fecha de actualización -26/03/2004

i01543802

Torque Converter Stall - Test

MCS - 3101-081

he torque converter stall test helps determine if the engine is producing the correct power output. This stall test

may be used in many diagnostic procedures.

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

1. Move the machine to a smooth horizontal location. Move away from working machines and personnel.

Lower the attachments to the ground.

2. Allow only one operator on the machine. Keep all personnel away from the machine or in the view of the

operator.

3. Engage the parking brake.

Stall Test

1. Shift the transmission to the NEUTRAL position.

2. Start the engine. Warm the transmission oil to normal operating temperature of approximately 95° ± 20°C

https://sis.cat.com/sisweb/sisweb/techdoc/techdoc_print...alledpage=/sisweb/sisweb/techdoc/techdoc_print_page.jsp (1 de 3)19/11/2008 03:13:05 PM

Cerrar SIS

Pantalla anterior


2/3


(200° ± 35°F).

3. Place the work tool flat on the ground.

4. Fully depress the right side service brake pedal. Hold the brake pedal in the depressed position for the

duration of the test.

5. Disengage the STIC control lock.

6. Release the parking brake.

NOTICE

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 tocool the oil.

7. Place the transmission in THIRD GEAR.

8. Move the transmission direction switch to the REVERSE position.

9. Increase the engine speed to high idle.

10. Allow the engine speed to stabilize. Record the engine rpm.

11. Reduce the engine speed to low idle.

12. Shift the transmission to the NEUTRAL position.

he correct stall speed in third speed reverse is listed in the tables that follow.

Table 1

Machine Engine Speed (RPM)

990 1850 ± 55

990 Series II 1870 ± 55

844 1900 ± 75

ncorrect stall speeds indicate one or more of the following conditions.

Incorrect engine performance

Incorrect transmission performance



3/3


Incorrect performance of the torque converter

Change in the parasitic loads: fan circuit and pumps

Copyright 1993 - 2008 Caterpillar Inc.

Todos los derechos reservados.Red privada para licenciados del SIS.

Wed Nov 19 15:12:21 EST 2008

http://displaycopyrightinfo%28%29/http://displaycopyrightinfo%28%29/http://displaycopyrightinfo%28%29/http://displaycopyrightinfo%28%29/http://displaycopyrightinfo%28%29/http://displaycopyrightinfo%28%29/

convertidor calado 1 ex

Documents