Ditch Witch JT1220 Mach 1 - Drilling;Operation Controls

Controls - 28 JT1220 Mach 1 Operator’s Manual
Left Control Console
CMW
Drilling/Operation Controls
1. Engine throttle switch
2. Drilling fluid pressure gauge
3. Thrust pressure gauge
4. Rotation pressure gauge
5. Remote engine start switch
6. Console/Work light switch
7. Fluid pump indicator
8. Fluid flow control
Item Description Notes
1. Engine throttle switch To increase speed, press top.
Return switch to center when
desired speed is reached.
To enable autothrottle mode,
press top and leave switch in
top position.
To decrease speed, press
bottom.
To disable autothrottle mode,
return switch to center after
desired speed is reached.
Autothrottle mode slows the engine to
low throttle after 15 seconds of
inactivity involving thrust, rotation,
drilling fluid flow, or pipeloader
functions. To return to high speed,
activate thrust, rotation, drilling fluid,
or an add/remove cycle.