LEVER 4F1526 - Caterpillar

NEVER REMOVE ANY ENGINE BRAKE COMPONENT WITH ENGINE RUNNING.PERSONAL INJURY MAY RESULT.
The Jacobs Engine Brake is a relatively trouble-free and maintenance-free device. However, periodic inspections and part replacement will need to be made from time-to-time. Use the following procedures to keep the engine brake in top condition.This section will cover how to properly remove, clean and reinstall engine brake components. Use an OSHA-approved cleaning solvent when washing parts. Be sure to coat parts with clean engine oil when reinstalling them.Control Valve
REMOVE CONTROL VALVE COVERS CAREFULLY. CONTROL VALVE COVERS ARE UNDER LOAD FROM THE CONTROL VALVE SPRINGS.REMOVE WITH CARE TO AVOID PERSONAL INJURY.
1. Remove capscrews and covers from top of brake housing. 2. Carefully remove the control valve springs. Only one spring is used in the Model C-346 housing. Models C-346A and C-346B use two springs. 3. Using needle-nose pliers, reach into the bore and grasp the stem of the control valve. Pull valve straight up and out of its bore. The C-346 housing has a long-stemmed control valve. C-346A and C-346B housings use short-stemmed control valves.4. Wash the control valves with approved cleaning solvent. Push a wire through the hole in the base of the valve to the distance required to ensure that the ball check is free. The ball should lift with light pressure on the wire. If the ball is stuck, replace the control valve. Dry the valve with compressed air and wipe clean with a paper towel. Thoroughly clean the control valve bore in the housing, using clean paper towels.Dip the control valve in clean lube oil. Holding the valve by the stem, let the valve drop into its bore. If binding occurs, the control valve should be replaced.Solenoid Valve
1. Disconnect the solenoid harness. 2. For earlier style solenoid valves, unscrew with a Jacobs solenoid socket. Use a 12 pt. socket wrench to remove the current solenoid valves.
DO NOT READJUST OR TAMPER WITH THE SOLENOID VALVE. ENGINE DAMAGE COULD RESULT.
3. Remove and discard the three rubber seal rings. If the lower ring stays in the bottom of the housing solenoid bore, remove with a seal pick.4. Wash out the solenoid valve with approved cleaning solvent. Use a brush to clean the oil screen. When clean, dry the valve with compressed air. Clean out the solenoid valve bore in the housing. Use clean paper towels. Never use rags, as they may leave lint and residue which can plug the oil passageways. 5. Reinstall solenoid using new seal rings. Seat lower seal ring in the base of the solenoid valve bore. Wipe clean lube oil into and around the bore. Place upper and center seal rings on the solenoid valve body. See Figure 5-6 for seal locations. Be sure the seals are seated properly and carefully screw the solenoid into housing without unseating the seals. Torque the valve to 5 lbft (7 N m). Be careful not to twist the seals while installing.Slave Piston
WEAR SAFETY GLASSES. REMOVE SLAVE PISTON CAREFULLY.THE SLAVE PISTON IS RETAINED BY SPRINGS THAT