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Summary of Contents for TecBrake T430A
- Page 1 Engine Brakes Installation Manual Model T430A Engine Brakes For Cummins NTC/88NT Series Engines TecBrake P.O. Box 27822 Houston, Texas 77227...
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Page 2: Section 1- Introduction
TECBRAKE MODEL T430A ENGINE BRAKE FOR CUMMINS NTC/88NT SERIES ENGINE SECTION 1- INTRODUCTION The TecBrake T430A engine brake may be installed on popular versions of the Cummins NTC/88NT series engine. It can not be installed on earlier versions of the Cummins NTC series engines, which use a different cylinder head configuration. - Page 3 5 if a fan brace is used. The injector adjusting screw used in the TecBrake Model T430A has a 5/8" hex head and height of 2". 15. Install studs supplied with kit in positions1, 2 & 3 as Earlier model engine brakes used either a 5/8" or 7/ indicated in Figure 2-6.
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Page 4: Section 3 - Valve And Injector Adjustment
SECTION 3 - VALVE AND INJECTOR ADJUSTMENT Different procedures are used in setting injectors on STC versus fixed timed engines. Refer to the Injector and Valve Setting Chart (Figure 3-1) to determine the crankshaft position when adjusting injectors and exhaust valves. -
Page 5: Section 4 - Installing The Brake
SECTION 4 - INSTALLING THE BRAKE- Figure 4-1 Figure 4-4 1. Install the engine brake housing gaskets. Make sure 5. Install the nuts provided in the kit and tighten to 30 lbft that the oil supply slots align correctly with the oil supply (40 N*m) in sequence as shown in Figure 4-5 then re-torque screws in the housings. -
Page 6: Section 5- Electrical System Installation
Slave Piston Adjustment SECTION 5- ELECTRICAL SYSTEM INSTALLATION Installation of the electrical system involves the mounting Adjustment of the slave piston adjusting screw is critical. of dash switches, a clutch switch, and a fuel pump switch. Proper adjustment is necessary in order to provide peak An optional foot switch may be installed in place of the braking efficiency without over stressing the engine. - Page 7 Fuel Pump Switch Figure 5-2 Figure 5-5 Remove two fuel pump mounting screws from rear of Diode on fuel pump switch is wired for a negative fuel pump as shown. ground electrical system. If vehicle uses a positive ground system, the diode must be removed and reversed. Figure 5-6 Figure 5-3 Attach the fuel pump switch and mounting bracket to...
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Page 8: Section 6 - Engine Brake Maintenance
Figure 5-8 Solenoid Valve Wiring Disconnect the electrical lead from the solenoid and remove solenoid with a spanner wrench. Remove and A universal wiring harness and other miscellaneous wiring discard the three rubber seal rings. materials are included in the kit. Clean the filter screen and solenoid with solvent then 1. - Page 9 4. Push on the check valve ball with a small wire through the hole in the bottom of the control valve to make sure that there is spring tension on the ball. The ball should lift freely with a small amount of force and return quickly to the seat when the force is removed.
- Page 10 3. Install slave piston spring removal tool as illustrated. Turn tool screw until all force is removed from spring retainer. 4. Using retaining ring pliers, orient the retaining ring end near slot in brake housing. 5. Compress the retaining ring with the retaining ring pliers and remove it from the groove in the housing.
- Page 11 TecBrake Inc. P.O. Box 27822 Houston, Texas 77227 ©1994 TecBrake, Inc. Bulletin No. TB990125 8/10/95...
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