TM 5-3820-246-14&P
3-3. TROUBLESHOOTING.
Troubleshooting
Procedure
Page
1. Engine will not start .............................................................................................................................. 3-2
2. Engine falters or dies ............................................................................................................................. 3-3
3. Engine starts, but does not reach normal running speed.......................................................................... 3-3
4. Engine runs but tool action is weak........................................................................................................ 3-4
5. Engine runs normally but drill rod does not turn .................................................................................... 3-4
Malfunction
Test or Inspection
Corrective Action
1. ENGINE WILL NOT START.
Step 1. Visually check fuel tank to determine if fuel is present.
Add proper fuel mixture (16 parts 80 or higher octane leaded or unleaded gasoline and 1
part OE/HDO 40, MIL-L-2104 motor oil).
Step 2. Check fuel valve to determine it is open (para 2-9).
Open fuel valve (para 2-9).
Step 3. Check fuel knob to determine it is in the on position (para 2-9).
Place fuel knob in the on position (para 2-9).
Step 4. Check fuel tank cap vent to make sure it is unclogged and open.
Open fuel tank cap vent (para 2-9).
Remove debris from fuel tank cap vent.
Step 5. Check spark plug wire to determine if it is attached to spark plug.
Attach spark plug wire to spark plug.
