Download PDT2A Pump - Allwest Underground

1A OPERATION
PD2A/3A
1.26 Cleaning Sediment Cup
Turn fuel valve off. Remove sediment cup (a) and O-ring
(b). Wash them thoroughly in a nonflammable solvent.
Dry them and reinstall. Turn fuel valve on and check for
leaks.
b
a
1001SD13
1.27 Carburetor Adjustment
1. Start engine and allow it to warm up to operating
temperature.
2. Set pilot screw (c) 2 turns out. See Note.
3. With the engine idling, turn pilot screw (c) in or out to
the setting that produces the highest rpm.
4. After pilot screw is adjusted, turn throttle stop screw
(d) to obtain the standard idle speed, 1400 ±150 rpm.
Note: On some engines the pilot screw is fitted with a
limiter cap (e) to prevent excessive enrichment of the airfuel mixture in order to comply with emission regulations.
The mixture is set at the factory and no adjustment
should be necessary. Do not attempt to remove the
limiter cap. The limiter cap cannot be removed without
breaking the pilot screw.
1.28 Storage
If pump is being stored for more than 30 days:
1. Clean pump as described on previous page.
2. Drain out any water left in the pump housing.
3. Remove pump cover and clean inside of pump housing. Spray connecting rod and inside of pump cover
with a light film of oil.
4. Tape up suction and discharge ports to prevent
anything from falling into pump.
5. Change engine oil and follow procedures described in
engine manual for engine storage.
6. Cover pump and engine and store in a clean, dry area.
1A-14
d
e
c
1015SD05
1