TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Figure 4-191. Disconnecting or connecting oil cooler inlet and outlet hoses. Note. It is necessary to remove engine oil cooler before the transmission oil cooler can be removed. Remove 1. Disconnect manifold heater spark plug electrical lead (A) from spark plug. 2. Cut locking wire and remove two cap screws (B), spacers, and flat washer-a attaching manifold heater ignition unit bracket to oil coolers. Remove ignition unit with bracket and lead. 3. Cut locking wire and remove two bolts (C) and fiat washers attaching engine oil cooler to beam. 4. Cut locking wire and remove two bolts (D) and flat washers attaching transmission oil cooler to beam. 5. Cut locking wire and remove four bolts (E) and flat washers attaching oil coolers to top frame and remove coolers. 6. Remove nine fasteners (F) and remove oil cooler retainer and oil coolers. Install 1. Position engine and transmission oil coolers on side of engine and install four bolts (E) and flat washers securing oil coolers to top frame. Install locking wire. 2. Install two bolts (D) and flat washers securing transmission oil cooler to beam. Install locking wire. 3. Install two bolts (C) and flat washers securing engine oil cooler to beam. Install locking wire. 4. Position oil cooler retainer on top of coolers and install nine fasteners (F) securing retainer to upper cover frame. 5. Position manifold heater ignition unit bracket, with ignition unit and lead, between oil coolers and install two cap screws (B), spacers, and flat washers securing brarket to coolers. Install locking wire. 6. Connect manifold heater spark plug electrical lead to spark plug (A). Figure 4-192. Removing or installing engine and transmission oil coolers. 4-99