TM 5-3740-218-13&PTable 3-1. Operator Troubleshooting (Cont)MalfunctionTest or InspectionCorrective ActionStep 4.Check that power indicator on hand control unit is on.If not on, refer to unit maintenance.Step 5.Check engine cooling fins and blower housing for dirt or debris.WARNINGCompressed air used for cleaning and drying purposes shall not exceed30 psi. Use only with effective chip guarding and personal protectiveequipment (goggles/shield, gloves, etc.). Flying debris could causepersonal injury.Using compressed air, clean fins and blower housing, or washwith water and use compressed air to dry.3.ENGINE EXHAUST SMOKEY.Refer to unit maintenance.4.ENGINE SURGES OR OVERSPEEDS.Refer to unit maintenance.5.ENGINE MISSES OR RUNS ERRATICALLY.Refer to unit maintenance.6.ENGINE VIBRATES.Check for loose engine and pump assembly isolators or mounting plate.Refer to unit maintenance.BUCKET AND CROSSTUBE ASSEMBLY7.SPRAY SYSTEM CONTROL VALVE DOES NOT OPEN WHEN DISPENSER BUTTON IS PRESSED.Check for loose connection at control valve coil.Secure connection. If problem still exists, refer to unitmaintenance.3-3
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