TM 10-3930-669-20 2-15.  TRANSMISSION TROUBLESHOOTING (CONT). 3.  TRANSMISSION MALFUNCTIONS IN REVERSE. INITIAL SETUP Tools and Special Tools References Tool Kit, General Mechanic's: Automotive TM 10-3930-669-10 (Item 1, Appendix B) LO 10-3930-669-12 STE/ICE-R (Item 14, Appendix B) Pressure Test Kit (Item 2, Appendix B) Equipment Condition Materials/Parts MAIN POWER OFF F(M 10-3930-669-10) Oil, lubricating (MIL-L-2104) Engine switch OFF (TM 10-3930-669-10) (Item 25, Appendix C) Parking brake applied (TM 10-3930-669-10) Personnel Required Two KNOWN INFO Transmission control switches OK. Transmission operates normally in neutral and forward. Transmission oil temperature gauge OK. Transmission reverse solenoid OK. Tachometer OK. POSSIBLE PROBLEMS Clutch seized. Transmission oil leaks. Transmission oil level low. Low transmission oil pressure. Internal transmission oil leaks. Engine idle speed too high. Transmission oil pressure too high. Clutch plates warped. Broken, pitted, or cracked gear teeth. TEST OPTIONS Visual inspection. REASON FOR QUESTION If forklift fails to move rearward when transmission control lever is set to reverse position, clutch may be seized. 2-310