TM-9-2350-273-BD M60 M48 Battle Damage Assessment and Repair Download
Page 85 of 288
TM 9-2350-273-BD . ELECTRICAL SYST'EM SECTION 111. Motors, Starters, Alternators 6-5. General. Repair on automotive motors should be limited to relays, solenoids and brushes. Damage to casings and windings cannot be expediently repaired. 6-6. ALTERNATOR INTERCHANGEABILITY General Information: Alternator failure will degrade the vehicle’s combat operations. Emergency usage on battery power is only operation possible, but will require frequent recharging from another vehicle or an outside power source. The alternator should be replaced. Limitations: None Personnel/Time Required: 2 soldiers 4 hours Materials/Tools: Cannibalized alternator Corresponding regulator Other Options: Vehicle can be driven without alternator Procedural Steps: 1. Remove power pack. 2. Obtain alternator from another vehicle or unserviceable engine. 3. Examine the replacement alternator to determine if it is an exact replacement. If the exact replacement cannot be found, the AVDS 1790-2D alternator can be interchanged with the AVDS 1790-2C alternator. NOTE Interchanging alternators requires the exchange of engine wiring harnesses 7722353 and 1165541 (AVDS 1790-2C) with 11682724 and 11672723 (AVDS 1790-2D). The voltage regulator must also be changed if changing the wiring harnesses and alternator (See figure 3- 1). Interchanging alternators also requires the installation or removal of oil cooled alternator cooler hoses or air cooling ductwork. Utilize as many parts as possible from the same source. 6-4