BAR 1M8380 - Caterpillar

Illustration 6 g00286281
(3) 147-5536 Indicator Contact Point
(4) Top edge of the valve bridge
Install the 145-5191 Gauge Support in the rear bolt hole (2). The rear bolt hole is located in the valve cover base. Adjust contact point (3) on the top edge of valve bridge (4).
Illustration 7 g00286283
(5) Adjustment screw
Loosen the locknut for the adjustment screw. Loosen the adjustment screw (5) by several turns.
Apply a force of 5 N (1 lb) to 45 N (10 lb). Push down on the top contact surface of the valve bridge. Zero the indicator.
Turn adjustment screw (5) in the clockwise direction until the dial indicator reads 0.038 mm (0.0015 inch). This measurement is equal to turning the adjustment screw 20 to 30 degrees clockwise after the screw contacts the end of the valve.
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(6) 148-7211 Bridge Nut Socket
Hold the adjustment screw with the 148-7211 Bridge Nut Socket (6) in order to tighten the locknut to 30 4 N m (22 3 lb ft). You may use a sliderule torque computer in order to determine the torque wrench dial reading for the different extensions. Refer to Special Instruction, SEHS7150, "Snap On Torque Computer". Valve Lash Adjustment
The Electronic Control Module produces high voltage. To prevent personal injury make sure the Electronic Control Module is not powered and do not come in contact with the fuel injector solenoid terminals while the engine is running.
Note: Adjust the valve bridges before you make the valve lash adjustments.
Table 2
Valve Lash Setting: Engine Stopped
Valves Gauge Dimension
Inlet 0.50 mm (0.020 inch)
Exhaust 1.00 mm (0.040 inch)
Ensure that the number 1 piston is at the top center position. Refer to Testing and Adjusting , "Finding the Top Center Position for the No. 1 Piston".
The number 1 piston should be at the top center position of the correct stroke. Make adjustments to the valves according to the chart: Refer to Testing and Adjusting, "Crankshaft Positions for Fuel Injector Adjustment and Valve Lash Setting". Note: Tap each rocker arm on the top of the adjustment screw before you make any adjustments. Use a soft hammer. Make sure that the lifter roller is seated against the base circle of the camshaft.
Illustration 9 g00286365
(1) 145-5191 Gauge Support
(2) 147-2057 Indicator Contact Point
Install the 145-5191 Gauge Support (1). Use the 147-2056 Dial Indicator or use the 147-5537 Dial Indicator. Use the 147-2057 Indicator Contact Point (2). Install the tool in the rear bolt hole. The rear bolt hole is located on the valve cover base.
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(3) 147-2060 Wrench
(4) 147-2059 Torque Wrench
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(3) 147-2060 Wrench
(4) 147-2059 Torque Wrench
Move the rocker assembly upward and move the rocker arm assembly downward. Move the rocker assembly several times. The oil film is removed in order to get a true zero reading on the dial indicator. Use the 147-2060 Wrench (3) and use the 147-2059 Torque Wrench (4). Install the socket wrench and install the torque wrench on the nut of the rocker arm.