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Old 01-12-2012, 00:25   #1 (permalink)
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Default Do M915s have anti compounding valves?

I have been unable to find this information in the TMs. Do M915 series trucks series trucks have anti compounding valves?

This link explains compounding better than any I've come across so far - http://www.truckt.com Air Brakes Anti-Compounding Theory

The TM does not say anything about avoiding applying the service brakes when the parking brakes are engaged, so that leads me to believe they do.

As a further question, do M939 series trucks have anti compounding measures? Do wedge brakes have compounding issues?
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1980 AM General M916 (w/Allison HD4070 7 Speed Automatic Transmission) http://www.steelsoldiers.com/5-ton-u...s-my-m916.html
1970 Kaiser Jeep XM818 Tractor W/OW http://www.steelsoldiers.com/5-ton-u...seats-etc.html
1972 AM General M35A2C Cargo W/W http://www.steelsoldiers.com/deuce/3...me-m35a2c.html
1986 Chevrolet M1028 CUCV Shelter Carrier
1970 Stevens MFG Co M127A2C Flatbed Semitrailer
1968 Southwest Truck Body Co M750 Repair Parts Storage Semitrailer
1968 Southwest Truck Body Co M146 Shop Van Semitrailer
1983 American Development Corp M332 Ammo Trailer
1991 Libby Corp M101A2 Cargo Trailer
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Old 01-12-2012, 16:43   #2 (permalink)
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Were the anti-compounding valves around when the 915s were built? Informative link, thanks.
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Old 01-12-2012, 22:50   #3 (permalink)
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Quote:
Originally Posted by Stan View Post
Were the anti-compounding valves around when the 915s were built? Informative link, thanks.
I don't know. I thought I had read something about anti compounding becoming common in the late 60s, but I cannot find that information anywhere now.
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1980 AM General M916 (w/Allison HD4070 7 Speed Automatic Transmission) http://www.steelsoldiers.com/5-ton-u...s-my-m916.html
1970 Kaiser Jeep XM818 Tractor W/OW http://www.steelsoldiers.com/5-ton-u...seats-etc.html
1972 AM General M35A2C Cargo W/W http://www.steelsoldiers.com/deuce/3...me-m35a2c.html
1986 Chevrolet M1028 CUCV Shelter Carrier
1970 Stevens MFG Co M127A2C Flatbed Semitrailer
1968 Southwest Truck Body Co M750 Repair Parts Storage Semitrailer
1968 Southwest Truck Body Co M146 Shop Van Semitrailer
1983 American Development Corp M332 Ammo Trailer
1991 Libby Corp M101A2 Cargo Trailer
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Old 01-12-2012, 23:44   #4 (permalink)
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I believe they do have them !
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Old 01-15-2012, 01:42   #5 (permalink)
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Default

Can anybody provide any additional information?
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1980 AM General M916 (w/Allison HD4070 7 Speed Automatic Transmission) http://www.steelsoldiers.com/5-ton-u...s-my-m916.html
1970 Kaiser Jeep XM818 Tractor W/OW http://www.steelsoldiers.com/5-ton-u...seats-etc.html
1972 AM General M35A2C Cargo W/W http://www.steelsoldiers.com/deuce/3...me-m35a2c.html
1986 Chevrolet M1028 CUCV Shelter Carrier
1970 Stevens MFG Co M127A2C Flatbed Semitrailer
1968 Southwest Truck Body Co M750 Repair Parts Storage Semitrailer
1968 Southwest Truck Body Co M146 Shop Van Semitrailer
1983 American Development Corp M332 Ammo Trailer
1991 Libby Corp M101A2 Cargo Trailer

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