The kit can also be used to warm the GeneratorSet for initial starting within 5 hours at any ambienttemperature down to -65° F.Power for operation of the kit may be obtained fromany power source that supplies 205 to 240 volts at50, 60 or 400 Hz single phase. For electrical win-terization kit operating instructions refer to Fig.2-11.17-14. Troubleshooting.Troubleshoot the electric winterization kit using table17-3. Typical malfunctions, the possible causes,and the necessary corrective action are tabulated.17-15. Removal and Disassembly.a. Removal.Refer to Operator and OrganizationalMaintenance Manual and remove electric winterizationkit.b. Disassembly.(1) Refer to Operator and Organizational Main-tenance Manual and disassemble the electric winteri-zation kit.(2) See figure 17-3 and disassemble the cool-ant pump.(3) See figure 17-4 and disassemble the electricwinterization control box as follows:(b)and (15).(c)leads.(d)(e)ductors (12)Remove screws (1) and cover (2).Tag all leads attached to heat sink (14)Remove nut (5) and screw (6) and removeRemove (7) thru (15) in sequential order.Tag and unsolder leads from semicon-and (13). bracket (16) and grommet (17)can then be removed.(f) Remove items (18) thru (39) in sequen-tial order.17-16. Inspection and Repair.a. Replace all gaskets, seal rings and motorbrushes at each overhaul.b. Replace all electrical and mechanical partsthat do not meet the requirements specified hereinand in table 17-4.17-17. Reassembly.Reassemble control box and coolant pump and motorassembly in the reverse order of the numerical se-quence in figure 17-4 and figure 17-3.17-18. Testing.a. CoolantPumpandMotorAssemblyTest.(2) Mount motor and pump assembly on a teststand and install proper fittings in inlet and outletports. Attach hose line from supply tank to portmarked IN.(3) Attach discharge line with pressure gaugeand needle valve to port marked OUT and return tosupply tank.(4) Attach electrical plug to motor receptacleand plug in to dc power supply.(5) Turn power switch on and run unit for ap-proximately 15 minutes on 24 Vdc.(6) Close valve in outlet line. (Make sure dis-charge pressure does not exceed a maximum of 30 to40 psi when closing this valve). Open and close valvea few times to check consistency of relief valve per-formance.(7) To check pump for rated flow and pressure,adjust valve in discharge line until a reading of 2 psiis obtained on pressure gauge. Using a suitabletimer, check for rated coolant flow of 80 gph (gal-lons per hour) minimum at 2 psi discharge pressure(at 68°F. ) Amperage draw must not exceed 3.3amperes during this test. The drive motor speedshould be approximately 7500 rpm. Observe smooth-ness of operation of both pump and motor. Seal leak-age of 1 cc per hour is maximum when pump is opera-ting at 2 psi discharge.(8) Turn power supply off, then remove dis-charge line and fitting from OUT port. Plug thisport and apply 40 psi hydrostatic pressure for 20minutes to inlet port.No leakage shall be evidentduring this test.b. ElectricWinterizationControlBoxComponents.(1) Transformer.Inspect the transformer forvisual damage to lugs, windings, etc. If visual dam-age is obvious, replace transformer. Open trans-former primary and secondary windings and checkthe winding resistances. The primary resistance(terminals 1 and 2) shall be 6.77 ohms ± 10 percent.The secondary (termimls 3 and 5) shall be 0. 108 ohm± 10 percent.Apply 230 Vac at 60 Hz winding 1-2with the secondary open circuit. The exciting currentshall be less than 0. 04 amperes, rms.Apply 253 Vacto 1-2. The exciting current shall be less than 0. 065amperes, rms.With the secondary open circuit, ap-ply 230 Vac to winding 1-2. The voltage across 3 to 4and 4 to 5 shall be 14.8 volts rms, ± 1 percent. If anyof the above tests are failed, replace the transformer.(2) Inspect the control relay for visual damage.If visual damage is obvious, replace relay. Checkrelay coil with an ohmmeter. The coil resistanceshould be 300 ohms ± 10 percent at, or corrected to,250 C. Apply 24 Vdc to the coil with a dc power sup-ply. The two normally open contacts shall close.Remove the 24 Vdc; the two contacts shall open. Ifdefective, replace per paragraph 17-15.(3) Test the four control box diodes per para-graph 14-10.Replace a defective diode,(4) Replace defective connectors..(1) After coolant pump has been reassembled,it must be tested before being reinstalled.17-8
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