b. Fuel Level
WARNING: REMOVE FUEL CAP SLOWLY; FUEL SPRAY may cause injury; FUEL may be under pressure.
•Rotate fuel cap slowly and wait until hissing stops before removing cap.
Check fuel level. If necessary, fill tank with fresh, clean fuel (see engine Owner’s Manual for fuel specifications).
c.Cooling System
Check the air cooling system by inspecting the air intake and exhaust openings for blockage and blower impeller for obstruction and free movement. Check the blower/alternator belt for proper tension (see the engine Owner’s Man- ual), and ensure that all sheet metal cowlings, shrouds, and panels are properly in place and secure.
d.Air Cleaner
Check air cleaner service indicator daily (see Section
2.Rotate Engine Control switch to the START posi- tion, and if applicable, depress ETHER START- ING AID switch, if applicable, at the same time —
release ETHER STARTING AID switch after one second.
CAUTION: REENGAGING STARTER MO- TOR while flywheel is rotating or EXCEED- ING RATED CRANKING TIME can damage starting components.
•Do not reengage starter motor until starter pinion and flywheel have stopped rotating.
•Do not exceed maximum cranking time of 20 seconds.
Allow two minutes cooling time before attempt- ing to restart engine.
3.As soon as engine starts, release Engine Control switch, and allow the engine to warm up for ap- proximately three minutes with no weld or power load applied.
7-7. STOPPING THE ENGINE
1.Stop all operations, and turn off or disconnect any auxiliary equipment.
WARNING: HIGH CONCENTRATION OF SHIELDING GAS can harm health or kill.
•Shut off gas supply when not in use.
2.Rotate Engine Control switch to the OFF posi- tion.
Table 7-2. Flow Of Free Air (CFM) Through Orifices Of Various Diameters
Gauge Pressure In |
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| Orifice Diameter And Free Air Flow (CFM) |
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Receiver (lbs.) |
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| 1/64” | 1/32” | 3/64” | 1/16” | 3/32” | 1/8” | 3/16” | 1/4” |
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1 | 0.027 | 0.107 | 0.242 | 0.430 | 0.97 | 1.72 | 3.86 | 6.85 |
2 | 0.038 | 0.153 | 0.342 | 0.607 | 1.36 | 2.43 | 5.42 | 9.74 |
3 | 0.046 | 0.188 | 0.471 | 0.750 | 1.68 | 2.98 | 6.71 | 11.9 |
5 | 0.059 | 0.242 | 0.545 | 0.965 | 2.18 | 3.86 | 8.71 | 15.4 |
10 | 0.084 | 0.342 | 0.77 | 1.36 | 3.08 | 5.45 | 12.3 | 21.8 |
15 | 0.103 | 0.418 | 0.94 | 1.67 | 3.75 | 6.65 | 15.0 | 26.7 |
20 | 0.119 | 0.485 | 1.07 | 1.93 | 4.25 | 7.7 | 17.1 | 30.8 |
25 | 0.133 | 0.54 | 1.21 | 2.16 | 4.75 | 8.6 | 19.4 | 34.5 |
30 | 0.156 | 0.632 | 1.40 | 2.52 | 5.6 | 10.0 | 22.5 | 40.0 |
35 | 0.173 | 0.71 | 1.56 | 2.80 | 6.2 | 11.2 | 25.0 | 44.7 |
40 | 0.19 | 0.77 | 1.71 | 3.07 | 6.8 | 12.3 | 27.3 | 49.1 |
45 | 0.208 | 0.843 | 1.9 | 3.36 | 7.6 | 13.4 | 30.3 | 53.8 |
50 | 0.225 | 9.14 | 2.05 | 3.64 | 8.2 | 14.5 | 32.8 | 58.2 |
60 | 0.26 | 1.05 | 2.35 | 4.2 | 9.4 | 16.8 | 37.5 | 67.0 |
70 | 0.295 | 1.19 | 2.68 | 4.76 | 10.7 | 19.0 | 43.0 | 76.0 |
80 | 0.33 | 1.33 | 2.97 | 5.32 | 11.9 | 21.2 | 47.5 | 85.0 |
90 | 0.364 | 1.47 | 3.28 | 5.87 | 13.1 | 23.5 | 52.5 | 94.0 |
100 | 0.40 | 1.61 | 3.66 | 6.45 | 14.5 | 25.8 | 58.3 | 103.0 |
110 | 0.43 | 1.76 | 3.95 | 7.00 | 15.7 | 28.0 | 63.0 | 112.0 |
120 | 0.47 | 1.90 | 4.27 | 7.58 | 17.0 | 30.2 | 68.0 | 121.0 |
130 | 0.50 | 2.04 | 4.57 | 8.13 | 18.2 | 32.4 | 73.0 | 130.0 |
140 | 0.54 | 2.17 | 4.87 | 8.68 | 19.5 | 34.5 | 78.0 | 138.0 |
150 | 0.57 | 2.33 | 5.2 | 9.20 | 20.7 | 36.7 | 83.0 | 147.0 |
175 | 0.66 | 2.65 | 5.94 | 10.6 | 23.8 | 42.1 | 95.0 | 169.0 |
200 | 0.76 | 3.07 | 6.90 | 12.2 | 27.5 | 48.7 | 110.0 | 195.0 |
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