2003/12/22 Caterpillar

The Addition of a Heat Shield Plate Protects the Engine Valve Cover {1061, 1062, 1107}

Usage:

345B 2NW

Excavator: 345B (S/N: 6XS1-UP) 345B L (S/N: 4SS1-UP; 4XS1-UP; 5WS1-UP; 7KS1-UP; 9GS1-UP; 2NW1-UP; 2SW1-UP; BFG1-UP) 345B Series II (S/N: ALB1-UP; ALD1-UP; AKJ1-UP; AKX1-UP; CCC1-UP; CDJ1-UP) 365B (S/N: 9PZ1-UP; 9TZ1-UP; AGD1-UP) 365B L (S/N: PEG1-UP) 365B MH (S/N: CTY1-UP) 365B L Series II (S/N: BTH1-UP; CFJ1-UP; DER1-UP; JMB1-UP) 385B (S/N: BKF1-UP; BKX1-UP; CLS1-UP; MYA1-UP) 385B L (S/N: ANS1-UP; BLY1-UP; FDL1-UP; RCD1-UP) 5090B (S/N: CLD1-UP; SJY1-UP)

Description of Change: Several improvements have been performed in order to prevent the engine valve cover from burning. The addition of a new heat shield plate protects the engine valve cover from the high temperature exhaust. The application of a sealant to the joints of the exhaust piping prevents heat from leaking out of the joints in the exhaust piping. The correct installation of the muffler clamp prevents the clamp from loosening and breaking.

Adaptable To: The new 233-1314 Support replaces the former 222-8263 Support on 385B and 5090B Excavators. The effectivity and the adaptability of the new support is listed in Table 1. The location of the components is shown in Illustration 1.

The effectivity and adaptability of the improvements to the exhaust piping is listed in Table 1. The location of the components is shown in Illustration 3. Use the procedure that follows for the installation of the heat shield plate on 385B and 5090B Excavators. The procedure for the improvements to the exhaust piping is adaptable to all of the models that are listed.

Show/hide table

Table 1
Effectivity Of The Improvements To The Exhaust Piping
Model	Effectivity	Adaptability
345B Series II	S/N:ALD210 S/N:AKJ204 S/N:AKX339	S/N:ALD1-209 S/N:AKJ1-203 S/N:AKX1-338
365B Series II	S/N:BTH162 S/N:CFJ190	S/N:BTH1-161 S/N:CFJ1-189
385B	S/N:BKF209 S/N:BKX166 S/N:BLY168	S/N:BKF1-208 S/N:BKX1-165 S/N:BLY1-167

Show/hide table

Table 2
New Components
Item	Qty	New Part Number	Description	Former Part Number
1	1	233-1314	Support	222-8263
2	1	233-1292	Plate	-
3	3	8T-4908	Bolt	-
4	2	8T-4224	Hard Washer	-
5	2	8T-4908	Bolt	-
6	2	5P-4116	Hard Washer	-
7	1	5C-7261	Nut	-
-	1	2P-2333	High Temperature Sealer	-

Installation Of The Heat Shield Plate

Use the procedure that follows in order to install the heat shield plate on 385B and 5090B Excavators.

Procure the parts that are listed in Table 2.

Show/hide table




Illustration 1	g01033061
Typical Muffler Group (1) 233-1314 Support (2) 233-1292 Plate (3) 8T-4908 Bolt (4) 8T-4224 Hard Washer (5) 8T-4908 Bolt (6) 5P-4116 Hard Washer (7) 5C-7261 Nut

Show/hide table




Illustration 2	g01037395
Detail A from Illustration 1 (B) 10 mm (0.4 inch) Hole diameter (C) 15 mm (0.6 inch) (D) 97 mm (3.8 inch)

Remove the former turbocharger cover. Install the new support (1). Use bolts (3) and washers (4) .

Drill a 10 mm (0.4 inch) hole in the muffler guard. The location for the center of the hole is shown in Illustration 2.

Install plate (2). Use bolts (5) and washers (4). Use bolt (3), washers (6), and nut (7) in order to assemble the plate to the hole that was drilled in Step 3.

Application Of The High Temperature Sealant

Apply the high temperature sealant to the exhaust piping of all the models that are listed. The sealant prevents exhaust leaks from the piping.

Show/hide table




Illustration 3	g01033069
Improvements To The Exhaust Piping (F) Apply 2P-2333 High Temperature Sealer to the joint of the turbocharger and the exhaust pipe. (G) Turbocharger (H) Gradually tighten the two bolts for the muffler clamp. Tighten the bolts equally. (J) Apply 2P-2333 High Temperature Sealer to the male end of the exhaust pipe.