TM 9-2320-209-34-2-3 (7) Fuel standpipe and preheat resistor. FRAME 1 WARNING Dry cleaning solvent is flammable. Do not use near an open flame. Keep a fire extinguisher nearby when sol- vent is used. Use only in well-ventilated places. Fail- ure to do this may result in injury to personnel and damage to equipment. 1. Clean fuel standpipe (1) with cloth dipped in dry cleaning solvent. Wipe fuel standpipe dry. 2. Check continuity through preheat resistor (2) with an ohmmeter. Place ohmmeter leads on terminals (3 and 4). If circuit is open, get new preheat resistor (2). 3. Check compression fitting (5) and union nut (6) for damage. IF ANY PARTS ARE DAMAGED, GO TO FRAME 2. END OF TASK 21-48