LINK AS-TRACK 9W4075 - Caterpillar

Replacement (If required)
If replacement of the 6I-4584 Exhaust Valve Bridge (3), Jake Brake Screw/Pin Assembly (1), or Jake Brake Hex Jam Nut (2) is required; these steps should be followed:
1. Remove Jake Brake Screw/Pin Assembly (1) and Jake Brake Hex Jam Nut (2) from the Exhaust Valve Bridge (3) [Place Exhaust Valve Bridge (3) in a soft jaw vise].
Jake Brake Screw/Pin Assembly (1). Jake Brake Hex Jam Nut (2). Exhaust Valve Bridge (3). Dimension A. Dimension B. Due to the use of 9S-3265 Retaining Compound at assembly, any or all of the above components may require replacement if damaged during disassembly.2. During assembly, clean Jake Brake Screw/Pin Assembly (1), Jake Brake Jam Nut (2), and mating Exhaust Valve Bridge (3) threads with 8T-9011 Component Cleaner. Dry with light air pressure.3. Apply 6V-1541 Quick Cure Primer to Jake Brake Screw/Pin Assembly (1) threads, Jake Brake Jam Nut (2) threads, and mating Exhaust Valve Bridge (3) threads. Dry with light air pressure.4. Apply 9S-3265 Retaining Compound (Loctite 620) to the Jake Brake Screw/Pin Assembly (1) threads. DO NOT apply excess Retaining Compound. DO NOT allow Retaining Compound to contact the Actuator Pin.5. Install Jake Brake Screw/Pin Assembly (1) and Jake Brake Jam Nut (2) into Exhaust Valve Bridge (3) (the 9S-3265 Retaining Compound sets quickly). Jake Brake Screw/Pin Assembly (1) MUST be adjusted as follows:A. Place Exhaust Valve Bridge (3) in vise (soft jaws).B. Measure depth of machined valve surface using a depth gauge. This is Dimension "A". See illustration.C. Set depth of Jake Brake Screw/Pin Assembly (1) to Dimension "B" using a depth gauge. Dimension "B" equals Dimension "A" 0.13 mm (.005 in).D. Tighten Jake Brake Jam Nut (2) to a torque of 25 7 N m (18 5 lb ft).E. Check depth of Jake Brake Screw/Pin Assembly (1) for proper adjustment (Dimension "B").