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PDG

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  1. Attached aresome pictures of my braking system, the vehicle was made in 1970, the circular part of the servo is a secondary brake, possibly emergency, the middle picture shows the fed to the main brake through the chassis, and some pipe ends which are for a piece of kit reputedly removed by the army, however until I plugged the ends there is a third ourt of shot I couuld get no air pressure, can anyone identify the third picture, or give me any information on this system I would be grateful. Paul
  2. Thank you for your interest, I had to adjust the unloader as I had thought the problem with the air was there, as the compressor seemed to work fine. the previous owner I talked to had had the system overhauled about seven years ago by a former Bedford agent, and said the vehicle had worked fine but its ability to maintain air haddiminished over time, unill it reached zero, so whatever the missing piece was it had no affect. I assume when it was removed a similar fix to the one I have used was implimented, (filling he pipe unions witha bolt) which would explain the loss of air over ime, the bolts working lose and hen falling away. The vehicles army reg was 08 FJ 66 code number 2050 1172, designation Truck Cargo W/Winch 3 Ton 4X4 Dropside RLW D I S (Datte in service?) Jan 1971 chassis contract number WV9127 Regards Paul
  3. Can anyone help, I own a Bedford Rl gun tractor with winch,Iam old it was one of a special order by he Royal Aritilery in 1970, production of he rl having ceased in 1969. The brake system is that of the MJ ttype. When I purchased the vehicle I was ignorant some basic facts regarding the operation this type of vehicle, but let my heart rule my head, as my father had driven commercial Bedfords for many years. Thus I picked the vehicle up and drove it 240 miles home with no air assist as the vehicle was not building any air up, I assumed I had a faulty guage until I came to stop on a slip road at Scotch Corner, however once I was aware of what I was dealing with it was not a problem to drive. I managed to get in touch with a previous owner, not the person I purchased it from, who advised me that some peice of equipment had been removed by the army, I found three exposed pipe ends, and blanked tthem off using 5/8 UNF sets, and hey presto I was building up air, I adjustted the unloader and that cuts in at about 75psi 105psi. The air showed up a problem with a rear brake cylinder so I changed the seals and thought all would be well however my brakes were no hard on when I had air in the system, and brake fluid was showing dripping from a nut on the bottom of the maser cylinder, so I changed it, bu the replacement is doing he same, I changed the maser cylinder as there was white corrosion on the aluminium casting of the servo, so I stripped that down and cleaned it made sure the inlet and exhaust valves were free and reassembled, hoever my brakes are stiil haard on wih the engine running and air on and brake fluid is seeping fromthe new master cylinder, although he brakes are ok hydraulic only, I am thinking I need to check the supplyies of air o the servo there are two one to a circular resovoir ank and the othe tto the inlet valve, any advice help or miricles would be grealy appreciated. Paul:nut:
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