TM 5-3805-260-24AIR DRYER (613BSNS1, 613BSS1)44.Put some of the lubricant from repair kit on the threads ofcap nut (34). Install the purge valve assembly and tightento a torque of 180 to 250 lb. in. (20 to 28 N.m).45.Install the cover (27), a new diaphragm (25) and the washerand screw (24).NOTE: The heater and thermostat are not serviced. If there is adefect in the heater and thermostat, install a new end coverassembly. DO NOT remove the cover (38).46.If the check valve in the outlet passage is to be removedwhile the air dryer is on the machine, do the following.A.Make sure the machine is in a safe place on levelground. Put blocks in front and in back of thewheels and lower all equipment to the ground.B. Shut off the engine and let all of the air pressure out ofthe air system.C.Disconnect the air line from the check valve outletpassage.47.Remove the check valve assembly (39).3-259
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