TM 9-2320-209-34-2-3 21-13. VAN BODY PERSONNEL HEATER REPAIR. Refer to Fuel Burning Personnel Heater Removal, Repair, and Replacement, para 21-9, for procedure to repair van body personnel heater. 21-14. VAN BODY SECONDARY HEATER REPAIR. Refer to Fuel Burning Personnel Heater Removal, Repair, and Replacement, para 21-9, for procedure to repair van body secondary heater. 21-15. HARD TOP CLOSURE KIT INSTALLATION. TOOLS : No special tools required SUPPLIES : Hard top closure kit, NSN 2540-00-570-1443 PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. Preliminary Procedures. Remove cab top paulin. Refer to BOW and Tarp Kits Installation and Removal, TM 9-2320-209-10. b. Installation. FRAME 1 1. Take out two buttons (1). 2. Find and mark center of top of windshield frame (2) . 3. Mark points (3 and 4) 21 7/8 inches from center of windshield frame (2). 4. Drill 7/16-inch hole at points ( 3 and 4). NOTE No other work on truck is necessary. Installation can be finished by following replacement procedure for cab hard top . Refer to para 21-6. END OF TASK 21-119