BRANDONFHL
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Need help t.s. Cab hydraulics. When cab is fully lowered, and swich released the cab will rise 1 to 2 more inches on its own. How can i fix it?
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Fmtv a1p2
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spankybear
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Dose it lift off and out of the lock ? Does the lock pin disengage? OR is it the cab air ride system leveling if the a1p2 has that??
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snowtrac nome
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It sounds like an air ride cab.
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On my A-0, as you lower the cab, the lock engages and the cab ride sensor re-adjust the cab level to where it should be. That may be what you are seeing.
Pointman
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A1P2 shouldnt have air leveling. They usually have the big coil over front shocks.
scottmandu
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The armored A1P2 has a lift system that is entirely different from the previous unarmored versions.
coachgeo
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Could it be it was a sweet A0 that they liked so much it got upfitted to an A1P2??? thus it kept the air ride cab?
What rear axle does it have? somewhere in the A1P2 line is when they went to the Power Divider style axle
What rear axle does it have? somewhere in the A1P2 line is when they went to the Power Divider style axle
scottmandu
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The power divider style rear axle was used either in late 2006 or 2007. The cab air shocks were removed for the A1R, so late 2004 and onward.
BRANDONFHL
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SAFETY LOCKS ARE ENGAGED. SOME OF OUR A1P2s RAISE UP ONE TO TWO INCHES AFTER FULLY LOWERED AND OTHERS DO NOT. I DONT BELEVE ITS A DEADLINE JUST WONDER IF ANYONE HAS SIMILAR ISSUES.
coachgeo
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Sounds like from the responses here...... to better answer; would help indirectly if we were given the year of A1p2's in question. In particular though; letting us know if they do or do not have air ride system under the cab will open up more exacting answers.
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TREADedSNAKE
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i work on these for a living, and that is part of the electric over hydraulic system on the a1p2's and is perfectly normal.
coachgeo
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???? so if they do not have cab air bag/shocks at rear of cab like the A0's how/where is the tie in to the electric air/over hydraulic system? Just thru the lift cylinder or is there something else too?
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This is what replaced the air ride system in the A1P2 trucks.
coachgeo
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is that sitting where the squat cylinder once was? Are they an air shock or a hydraulic shock? Their adjustment air activated? Makes since they are more heavy duty to handle weight of armored cab.
So the previous air bag setup disappeared with the armored cabs or before that with a serious of the regular A1 cabs? If before that..... did they use the same system just pictured or something else?
So the previous air bag setup disappeared with the armored cabs or before that with a serious of the regular A1 cabs? If before that..... did they use the same system just pictured or something else?
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These replace the air bags on the earlier trucks.
coachgeo
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Ahhh so the pictured truck is not armored. Thought it was. Thanks.
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Yes, the truck in the 3 pictures is an armored M1083 A1P2
coachgeo
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ok..... so the question still remains.......... did they stop using the airbags with any of the a1's there were NOT armored.. and did they have some sort of a cab shock different than the one pictured??...... or same set up as pictured?
Again..... very much thank you. This is interesting info.
Johno176
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My 2005 M1088 A1 does not have airbags for the cab. There is no cab shock either. I believe A1's prior to 2005 had the airbags from what I've seen.
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My early 2004 has airbags. I think they were removed with the A1R program in late 2004.