TM 9-2350-261-20-1Table 2-1. Unit Level Preventive Maintenance Checks and Services for M113A2 FOVItemIntervalItem ToProcedureNot MissionNo.BeCapable If:Inspected97Semi-Perform-Start, run and stop heater (see yourA n y f a u l t s t h atAnnualante Test-10). During start cycle, check that(M577A2)wouldpreventswitches and light work right. Checkfor increase in blower speed after igni-proper operation.tion.During operation, check for unusualnoises. Check for differences betweenhigh and low heat levels. When stop-ping heater, check for correct purge cy-cle. Check that indicator light oper-ates properly. If heater does not oper-ate as specified above,performtroubleshooting (page 3-207).Change 3 2-119
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