6. The Inlet Needle Valve may be stuck in its seat. This frequently occurs when stale
gasoline is used, or when the machine is left setting for long periods of time. To solve this
problem the Metering Diaphragm Cover and Metering Diaphragm may have to be removed
and the Inlet Needle Valve manually broken loose. See the section on the CARBURETOR.
Use Dyna-Fog
®
Fuel Stabilizer to reduce these types of problems.
TROUBLE SHOOTING
Symptom:
Machine floods easily.
Check:
1. Is the Fuel Needle properly set?
2. The spark plug gap must be properly set. If gap is too close, the gasoline will fill the gap and
prevent spark from occurring.
3. Primer pump being depressed excessively.
4. Batteries may be weak.
Symptom:
The engine runs weak.
Check:
1. Make sure the On-Off Control linkage is properly set. Linkage wheel should rotate fully
counterclockwise to STOP. If not, adjust linkage. See page 22.
2. Is there a carbon build-up? Check by looking with a flashlight. Refer to the MAINTENANCE
section.
3. Is there an air leak at the bottom of the Carburetion Assembly?
4. Is the Fuel Needle out of adjustment causing the machine to run weak? See the CARBURETOR
section.
5. Is the gasoline bad or dirty?
6. Are there large amounts of air in the gasoline line? Air bubbles make the machine run weak.
Check the fuel line connections, including the two lines from the primer bulb to the Carburetor.
Symptom:
The machine will not fog.
Check:
1. Is the Formulation Tank pressurized when the machine is running? If not, the pressurizing valve
is bad or installed backwards.
2. Check the formulation delivery lines from the tank to the injection point on the engine to see if
they are clogged.
3. Is the pressurizing valve in backwards? See the section on WORKING PRINCIPLES.
4. Check for carbon at the injection point. See MAINTENANCE section.
5. Does the Formulation Tank Cap leak?
33
Содержание BLACKHAWK 2620
Страница 1: ...MODEL 2620 2630 INSTRUCTION MANUAL FOR OPERATION SERVICE AND MAINTENANCE ...
Страница 24: ...24 ...
Страница 44: ... 12 86629 ASOV Assembly 12 ...
Страница 48: ...Figure 43 43 ...
Страница 52: ...REPLACEMENT PARTS LIST FIGURE 25 REF CURTIS NO PART NO DESCRIPTION 1 85574 Strap carry 2 86226 Pad strap 52 ...