Startup - Graco Express 3900 Operation

Startup

4. When spraying texture, remove inlet strainer and fil-
ter bowl screen before spraying these materials.
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5. Fill throat packing nut with TSL to prevent prema-
ture packing wear. Do this each time you spray.
6. Check engine oil level. Add SAE 10W-30 (summer)
or 5W-20 (winter), if necessary.
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7. Fill fuel tank.
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8. Attach sprayer grounding clamp to earth ground.
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8
Startup
1. Place suction tube and drain tube in grounded metal
pail partially filled with flushing fluid. Attach ground
wire to pail and to earth ground.
2. Turn prime valve down to DRAIN position. Turn
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pressure control counterclockwise to lowest pres-
sure.
3. Set pump switch OFF.
4. Start Engine
a. Move fuel valve to open.
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