13-36TM 9-2350-267-20APU CONTROL BOX: REMOVAL, DISASSEMBLY, ASSEMBLY, CIRCUIT TEST AND INSTALLATION (CONTINUED)WARNINGTurn OFF MASTER switch. Disconnect batteryground cables.A Remove M2A2 air purifier (p 14-3).B Remove bracket (1) with attached APU control box (2) byremoving four screws (3) and four washers (4). Disconnectharness ground wire.C Disconnect electrical wiring harness connector (5) fromAPU control box (2).D Remove APU control box (2) from bracket (1) by removingfour screws (6), four lockwashers (7) and four nuts (8).E Do circuit continuity test (p 13-39) and short circuit test(p 13-40). Replace any defective components duringdisassembly.TA309982
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