AIR DRYER (613BSNS1, 613BSS1)
Put some of the lubricant from repair kit on the threads of
cap nut (34). Install the purge valve assembly and tighten
to a torque of 180 to 250 lb. in. (20 to 28 N.m).
Install the cover (27), a new diaphragm (25) and the washer
and screw (24).
NOTE: The heater and thermostat are not serviced. If there is a
defect in the heater and thermostat, install a new end cover
assembly. DO NOT remove the cover (38).
If the check valve in the outlet passage is to be removed
while the air dryer is on the machine, do the following.
Make sure the machine is in a safe place on level
ground. Put blocks in front and in back of the
wheels and lower all equipment to the ground.
B. Shut off the engine and let all of the air pressure out of
the air system.
Disconnect the air line from the check valve outlet
Remove the check valve assembly (39).