TM 10-4320-226-144.13.2.1. Control Panel Test. (Used on Model 350 PAWN only)INITIALSETUPToolsGeneralSafetyInstructionsGeneral Mechanics Tool Kit (appendix BTo prevent rolling or sliding, do not work on equipmentSection III, Item 1)that is not securely stabilized.Materials/PartsTags (appendix E, Section II, Item 12)Do not work on equipment without following standardshop safety precautions.Equipment ConditionsEquipment shut down, paragraph 2.5.2.Do not work on wiring harness with negative battery terminal connected.To prevent rolling or sliding, do not work on equipment that is not securely stabilized.Ensure both wheels are secure.Failure to obey these warning may result in serious personnel injury.NOTEAll electrical checks, should be done with both battery cables disconnected. For testingpressure gauges, ammeter, hourmeter/tachometer system must be operating.a.Wiring Harness. Refer to figure 4-42.1 and check for continuity of wiring(may have to disconnect wires).b. Switch S1.(1) Close switch (pulled out) and check for continuity between contacts 1/4 and 2/3.(2) Open switch (pushed in) and check for open circuit between contacts 1/4 and 2/3.c. Switch S2.(1) Close switch (pressed in) and check for continuity between its contacts (no numbers).(2) Open switch (released) and check for open circuit between its contacts.d. Switch S3.(1) Close switch (pressed in) and check for continuity between contacts 1/2.(2) Open switch (released) and check for open circuit between its contacts 1/2.e. Relay K1.(1) Apply 12 V dc to contacts 2 and 7 (ground) and check for continuity between its contacts 1/3 and 6/8.(2) Disconnect 12 V dc and measure for open circuit between its contacts 1/3 and 6/8.f. Relay K2.Change 2 4-82.1
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
