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its 8-sided, too.

The point of failure on my CTIS was a pulled wire inside the wet-tank pressure switch connector. Test: see pix for proper function of wet-tank pressure switch connector (master power OFF).

This is a common & expensive CAT 3116/3126 engine failure point, which is easily prevented by proper fastening of the air compressor bracket. Fix/PM: before selling (ie GP) or driving your LMTV / FMTV roll under the truck's oil pan, driver's side, and look at the air compressor bracket--...

That's proper operation during startup...one CTIS light is flashing as truck air pressure rises, the brakes take priority, the cab rises up on the air ride bladders, the brake alarm stops wailing at ~90psi, then the CTIS checks air pressure--the CTIS light then goes solid red, and the CTIS...

How do you dispose of an old air brake chamber? Would shooting it from 200yds with a 308 be a safe option?

I forgot to add...I broke off the connector marked "C" off of the replacement part #35701. Warning/caveat --- I was unable to confirm #35701 specifications and its compatibility with this 24v load application...so far everything works and its not smoking....perhaps I'll avoid using the fan's...

The heater fan blower switch was working intermittently, so with winter coming... Failure: Corrosion leading to poor connections and potential fire hazard...possibly due to build-up on switch of dry-rotted foam dust from sound-deadening material used in the heater compartment. Replacement...

there's a SS FMTV thread with pictures showing an M1078A1 towing a tracked military vehicle.

I tried to remove one, using all previous stated techniques, without success...thankfully solved problem of NO parking brake and slight chamber air leaks with liberal doses of WD40. Perhaps, heat from a "blue-tipped wrench" (torch) may be necessary, should air chambers need replacing in the future.

In a 23 March 2016 SS FMTV thread I posted"...I also had a cracked front housing on the CAT 3116...apparently, after rebuilding the starter, the mechanic forgot to tighten the air compressor bracket bolts on engine block ($850 for new front housing, $100/hour CAT labor rate (its a 25...

The parking brake must be set.

wrt m923 & cummings250 engine, checkout https://www.youtube.com/watch?v=J7GBGjIJVs8

SS vendors, ebay, meritorpartsonline.

Hi Steve, I assume your engine is a 3116...talk to your local CATERPILLAR mechanic.

Shim Kit 4715 (Meritor), NSN 5365-01-390-8484, PNs: 2203J9500=0.012inches, ****K9501=0.015in, L9502=0.02in, M9503=0.025in, N9504=0.03in Source: Oshkosh Eqmnt Strong recommendation: Cleaning & resealing the hub is a hassle, so purchase & replace: the two CTIS seals pn A-1205-Q-2435, two...

Additional info., on M1078 steering. M1078 steering drag-link assembly: PN 12650 REV C M1078 steering gear box: ZF-Servocom Model 8098, NSN 2530-01-555-4681, PN 8098-955-146

Symptoms: The steering play on my was ~3inches on the steering wheel diameter...it was scary to drive, especially on narrow roads. Failed Fixes: It was difficult (for me) to find the source of steering play. I tried tightening wheel bearings, adjusting the steering gear sectors, and toe in...

This part is easily found on the internet, but please confirm this NSN & PN via TMs for your vehicle. Cost should be less than the gov't paid.

FWIW -- I finally discovered and solved my M1078's excessive steering play...perhaps this post will be useful to others. Problem: Drag link tie rod end wear (NSN 2530-01-462-0755, pn 12877-KL, ZF Lemforder mfg). Removal tool: pickup truck pitman arm tool (see pix)

Your CTIS may not think it has sufficient air pressure...suggest checking wet tank pressure switch & connector (2 wires -- one may have pulled loose from he connector pin). If i recall, TM 24 parts manual wiring diagram shows the tank pressure switch is closed when pressure is sufficient, so you...