Repair Procedure For Sealing Air Conditioner On Certain D5, D6, D7, and D8 Track-Type Tractors {7309, 7311, 7316, 7320} Caterpillar


Repair Procedure For Sealing Air Conditioner On Certain D5, D6, D7, and D8 Track-Type Tractors {7309, 7311, 7316, 7320}

Usage:

D7R 2HR
Track-Type Tractor
D5R (S/N: D5X1-UP)
D5R2 (S/N: R5A1-UP)
D6R (S/N: EMM1-UP; 9BM1-UP; JEN1-UP; 6JN1-UP; 9PN1-UP; 4TR1-UP; 4WR1-UP; 5PR1-UP; 5RR1-UP; 6FR1-UP; 7AR1-UP; 7DR1-UP; 7GR1-UP; S6T1-UP; S6X1-UP; S6Y1-UP)
D6R Series II (S/N: BNC1-UP; ADE1-UP; BLE1-UP; DAE1-UP; BMJ1-UP; BRJ1-UP; BNL1-UP; AEP1-UP; BLT1-UP; AAX1-UP; BMY1-UP; BRZ1-UP)
D6R Series III (S/N: GJB1-UP; RFC1-UP; TBC1-UP; DMK1-UP; JEK1-UP; EXL1-UP; LFM1-UP; LGP1-UP; DPS1-UP; GMT1-UP)
D6R2 (S/N: SSS1-UP; TTT1-UP)
D6T (S/N: RAD1-UP; STE1-UP; KMR1-UP; TMY1-UP; HTZ1-UP)
D7H (S/N: 4AB1-UP; 5WB1-UP; 5BF1-UP; 4FG1-UP; 79Z1-UP)
D7R (S/N: R7B1-UP; DSH1-UP; 9HM1-UP; DLN1-UP; DJR1-UP; 2HR1-UP; 4SR1-UP; 5MR1-UP; 6ER1-UP)
D7R Series II (S/N: AEC1-UP; ABJ1-UP; BRM1-UP; AGN1-UP; BRP1-UP; ACS1-UP; BPT1-UP; ADW1-UP)
D8R (S/N: RJM1-UP; 7XM1-UP; 9EM1-UP; T5X1-UP)
D8R Series II (S/N: AKA1-UP; 6YZ1-UP)

Description Of Change: The repair consists of applying RTV sealant to the long edge seam inside the air conditioning duct. However, by accessing the inside of the air conditioner unit through the fresh air filter vent, the procedure is a blind repair. The following description is written to guide the repair knowing that this procedure is a blind repair area.

Adaptable To: Follow the procedure below unless the repair has already been completed. If a recent leak has been noticed, reapply additional RTV.

This repair in the air conditioner is adaptable to and effective with the following machines.

Table 1
Sales Model  Adaptable To  Effective With 
D5R XL  (S/N: D5X1-213)  (S/N: D5X214-UP) 
(S/N: R5A1-157) (S/N: R5A158-UP) 
D6R  (S/N: 5PR1-602)  (S/N: 5PR603-UP) 
(S/N: 6FR1-795) (S/N: 6FR796-UP) 
(S/N: EMM1-309) (S/N: EMM310-UP) 
(S/N: SSS1-388) (S/N: SSS389-UP) 
D6R II  (S/N: BLE1-401)  (S/N: BLE401-UP) 
(S/N: BLT1-329) (S/N: BLT330-UP) 
(S/N: BNL1-522) (S/N: BNL523-UP) 
(S/N: BRJ1-243) (S/N: BRJ244-UP) 
D6R II LGP  (S/N: ADE1-1169)  (S/N: ADE1170-UP) 
(S/N: BNC1-477) (S/N: BNC478-UP) 
D6R II XL  (S/N: AAX1-1568)  (S/N: AAX1569-UP) 
(S/N: BMJ1-176) (S/N: BMJ177-UP) 
(S/N: BMY1-545) (S/N: BMY546-UP) 
(S/N: BRZ1-590) (S/N: BRZ591-UP) 
D6R II XW  (S/N: AEP1-795)  (S/N: AEP796-UP) 
(S/N: DAE1-196) (S/N: DAE197-UP) 
D6R III  (S/N: GMT1-296)  (S/N: GMT297-UP) 
(S/N: JEK1-401) (S/N: JEK402-UP) 
(S/N: TBC1-486) (S/N: TBC487-UP) 
D6R III LGP  (S/N: DMK1-507)  (S/N: DMK508-UP) 
(S/N: LGP1-689) (S/N: LGP690-UP) 
D6R III XL  (S/N: EXL1-314)  (S/N: EXL315-UP) 
(S/N: GJB1-1082) (S/N: GJB1083-UP) 
(S/N: LFM1-387) (S/N: LFM388-UP) 
D6R III XW  (S/N: DPS1-166)  (S/N: DPS167-UP) 
D6R IIIP XL  (S/N: RFC1-148)  (S/N: RFC149-UP) 
D6R LGP  (S/N: 4TR1-1205)  (S/N: 4TR1206-UP) 
(S/N: 7AR1-726) (S/N: 7AR727-UP) 
(S/N: 9PN1-75005) (S/N: 9PN75006-UP) 
D6R LGP X  (S/N: S6Y1-322)  (S/N: S6Y323-UP) 
D6R X  (S/N: S6X1-2044)  (S/N: S6X2045-UP) 
D6R XL  (S/N: 4WR1-604)  (S/N: 4WR605-UP) 
(S/N: 5RR1-727) (S/N: 5RR728-UP) 
(S/N: 7GR1-754) (S/N: 7GR755-UP) 
(S/N: 9BM1-1385) (S/N: 9BM1386-UP) 
(S/N: JEN1-403) (S/N: JEN404-UP) 
(S/N: TTT1-151) (S/N: TTT152-UP) 
D6R XL X  (S/N: S6T1-1000)  (S/N: S6T1001-UP) 
D6R XR  (S/N: 6JN1-419)  (S/N: 6JN420-UP) 
  (S/N: 7DR1-616)  (S/N: 7DR617-UP) 
D6T LGP  (S/N: HTZ1-644)  (S/N: HTZ645-UP) 
D6T LGP PAT  (S/N: RAD1-992)  (S/N: RAD993-UP) 
D6T XL  (S/N: KMR1-590)  (S/N: KMR591-UP) 
D6T XW  (S/N: TMY1-361)  (S/N: TMY362-UP) 
D6T XW PAT  (S/N: STE1-117)  (S/N: STE118-UP) 
D7H  (S/N: 4AB1-5636)  (S/N: 4AB5637-UP) 
(S/N: 5BF1-75003) (S/N: 5BF75004-UP) 
(S/N: 79Z1-75001) (S/N: 79Z75002-UP) 
D7H LGP  (S/N: 4FG1-5662)  (S/N: 4FG5663-UP) 
(S/N: 5WB1-5591) (S/N: 5WB5592-UP) 
D7R  (S/N: 2HR1-1074)  (S/N: 2HR1075-UP) 
(S/N: 5MR1-5537) (S/N: 5MR5538-UP) 
(S/N: DSH1-473) (S/N: DSH474-UP) 
(S/N: R7B1-182) (S/N: R7B183-UP) 
D7R II  (S/N: ACS1-78001)  (S/N: ACS78002-UP) 
(S/N: ADW1-534) (S/N: ADW535-UP) 
(S/N: AEC1-75001) (S/N: AEC75002-UP) 
(S/N: BPT1-732) (S/N: BPT733-UP) 
(S/N: BRM1-1214) (S/N: BRM1215-UP) 
(S/N: BRP1-799) (S/N: BRP8001-UP) 
D7R II LGP  (S/N: ABJ1-75004)  (S/N: ABJ75005-UP) 
D7R II XR  (S/N: AGN1-76001)  (S/N: AGN76002-UP) 
D7R LGP  (S/N: 4SR1-710)  (S/N: 4SR711-UP) 
(S/N: 6ER1-407) (S/N: 6ER408-UP) 
(S/N: 9HM1-75001) (S/N: 9HM75002-UP) 
(S/N: DLN1-114) (S/N: DLN115-UP) 
D7R XR  (S/N: DJR1-123)  (S/N: DJR124-UP) 
D8R  (S/N: 7XM1-8001)  (S/N: 7XM8002-UP) 
(S/N: 9EM1-8001) (S/N: 9EM8002-UP) 
(S/N: RJM1-419) (S/N: RJM420-UP) 
(S/N: T5X1-659) (S/N: T5X660-UP) 
D8R II  (S/N: 6YZ1-6001)  (S/N: 6YZ6002-UP) 
(S/N: AKA1-8001) (S/N: AKA8002-UP) 

Repair Procedure



    Illustration 1g06097252

  1. Loosen the two thumb screws on the fresh air grill and remove the fresh air grill cover.


    Illustration 2g06097254

  2. Remove the fresh air filter.


    Illustration 3g06097259

  3. Once filter is removed, reach up into the duct.


    Illustration 4g06097293


    Illustration 5g06097296


    Illustration 6g06097301


    Illustration 7g06097303

  4. Feel toward the centerline of the machine for a wire harness and connector. Under the wire harness is a long edge seam. Follow the seam left (approximately 254 mm (10 inch)) toward the outside of the machine and right (approximately 102 mm (4 inch)) toward the center of the machine.

  5. This long edge seam, and around the corner at each end of the long edge seam, is the area where the RTV sealant should be applied. Refer to Illustrations 4, 5, 6, and 7.

  6. Apply RTV sealant to the full length of the edge seam and around each corner for an additional 25 mm (0.98 inch). Refer to Illustrations 4, 5, 6, and 7.

  7. Reinstall the air filter and air filter cover.

  8. After RTV has setup/cured/dried, turn on the air conditioner and check for leaks.

Apply a generous bead of RTV sealant to the edge seam of the Air Conditioner box described above. Start the application on the machine right-hand side and work your way to the left to minimize mess. Machine left-hand side vertical seam is at an odd angle so take care. The gap is generally the biggest on the top side of the seam nearest both corners.

Alternate Method If The Air Conditioner/Heater Box Is Out Of The Machine

Remove The Motor Housing Cover



    Illustration 8g06097312

  1. Remove AC/Heater box motor housing cover.

  2. Eight screws secure the cover to the AC/Heater box. One screw on each side and three each on the top and bottom.

  3. The cover slides out best with bottom edge tucked into the box and tilted to clear the platform wall on the machine right-hand side.

Apply RTV To The Seam



    Illustration 9g06097316

  1. Apply a generous bead of RTV sealant to the seam of the AC/Heater box between the drip passage and the air passage.

  2. Gap is biggest on the top side of the seam nearest both corners.

  3. Machine left-hand side vertical seam is tucked under housing face.

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