TM 5-3810-300-24 & P2
on each yoke mounted at 90 degrees to each other. Lockwire these set screws after tightening.
Lubricate the master control unit with chassis lube after installation. The lube fitting is located in the cap just under
the shift control shaft.
Range Control Valve.
The range control valve is disassembled by removing the top plate screw.
Reassembly is the reverse of disassembly. Critical assembly factors are:
Make sure that the jam nut locking the control valve to the shifting lever is secure.
Make sure that, when reassembled, the top plate screw is torqued with 90 to 120 inch-pounds. A loose top plate
screw can affect valve operation.
When reassembling, lubricate the O-ring and O-ring carrier with a barium base grease.
Troubleshoot the valve by checking air flow from the ports listed below.
Porting There are four ports in the bottom of the control:
The port stamped "S" is the supply port and is the constant air line from the air valve.
The port stamped "E" is the exhaust port and is left open.
The port stamped "R" is the signal line to the slave air valve.
The port stamped "F" is the signal line to the intermediate shift cylinder.