Curtis Dyna-Fog BLACKHAWK 2620, Instruction Manual

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AFTER EVERY TWELVE (12) HOURS OF OPERATION
*CLEAN THE FORMULATION INJECTION ORIFICE
1. For the Model 2620, disconnect the formulation-injection-line (Fig. 12, Ref. 1) at the
injection end and remove the elbow assembly.
For the Model 2630, disconnect the flexible tubing from the bottom fitting of the 3-way
selector valve and remove the elbow assembly.
2. For the model 2620, insert a wire through the coupling (Fig. 12, Ref. 5) into the engine
tube to remove carbon deposits.
3. Clean the orifice in the elbow assembly and reinstall elbow assembly.
* CHECK THE FUEL FILTER
Remove the fuel filter (Fig. 20, Ref. 5) from the fuel line. If it is dirty, install a replacement
and check the filter within the carburetor. (See carburetor section)
*BATTERIES – USE ALKALINE BATTERIES ONLY
No set period of time can be established for the replacement of the “D” size batteries, but the
spark intensity should be checked whenever the machine does not function normally. See the
section on TROUBLE ISOLATION AND CORRECTION concerning the testing of the electronic
ignition.
The nominal voltage of fully charged batteries should be at least 12 volts D.C. This voltage
will vary slightly with battery age and with the ambient temperature conditions. Under some
circumstances, it may vary as much as ± 2 Volts.
WARNING
• IMPROPER USE OF BATTERIES MAY CAUSE LEAKAGE AND EXPLOSION, THEREFORE,
STRICLTY OBSERVE THE FOLLOWING PRECAUTIONS.
(1) INSTALL THE BATTERIES WITH THE POSITIVE (+) AND NEGATIVE (-) POLARITIES IN THE
PROPER DIRECTION.
(2) DO NOT USE NEW AND OLD BATTERIES TOGETHER.
(3) DO NOT USE CYLINDRICAL ALKALINE BATTERIES WITH OTHER TYPES OF BATTERIES.
(4) NEVER ATTEMPT TO SHORT-CURCUIT, DISASSEMBLE, OR HEAT BATTERIES. DO NOT
THROW BATTERIES IN FIRE.
• CYLINDRICAL ALKALINE BATTERIES ARE NOT RECHARGEABLE. IF RECHARGED THEY
MAY LEAK AND EXPLODE.
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