PRODUCT SUPPORT PROGRAM FOR INSTALLING A NUT AND WASHER ON THE 50A GLOW PLUG FUSE ON CERTAIN 226D SKID STEER LOADERS AND 259D COMPACT TRACK LOADERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSTALLING A NUT AND WASHER ON THE 50A GLOW PLUG FUSE ON CERTAIN 226D SKID STEER LOADERS AND 259D COMPACT TRACK LOADERS

Usage:

TEBE6973-00

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14Nov2017

D-530

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After Failure Only	PRODUCT SUPPORT PROGRAM FOR INSTALLING A NUT AND WASHER ON THE 50A GLOW PLUG FUSE ON CERTAIN 226D SKID STEER LOADERS AND 259D COMPACT TRACK LOADERS
1408 1429		PS53621

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NOTE:	Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.
NOTE:	This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS53621" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

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NOTE:

The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.

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TERMINATION DATE

30Nov2019

PROBLEM

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The nut on the 50A glow plug fuse can be missing on certain 226D Skid Steer Loaders and 259D Compact Track Loaders. If the nut is missing it can make the machine more difficult to start in cold weather.

AFFECTED PRODUCT

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Model	Identification Number
226D	HRD02163-02166, 2223-2224, 2272, 2302, 2461, 2463, 2471-2473, 2479, 2481, 2566
259D	FTL12467, 12817, 12819-12820, 12834-12835, 12837, 12839, 12841, 12852, 12856-12857, 12859, 12868-12869, 12871, 12873, 12886, 13237, 13240, 13247, 14305, 14312, 14316, 14335, 14602, 14658, 14662, 14666

PARTS NEEDED

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Qty	Part Number	Description
4	5C2874	NUT
1	5C7261	NUT-HEX
1	8F7242	WASHER
4	8T0328	WASHER-HARD
1	3781011	HOLDER AS-FUSE
1	3968366	FUSE
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 8% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

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Refer to the attached Rework Procedure.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-1500 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 1.0-hour job

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PARTS DISPOSITION

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Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

Rework Procedure

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1. Locate the fuse assembly.

- For 226D Machines: The 50A glow plug fuse is located on the right hand side of the engine bay when looking in the rear door. A mirror and light is helpful since the fuse panel is more difficult to see and access on these machines. You may also raise the cab and inspect from that side of the machine. Refer to Image1.1.1.

- For 259D Machines: The 50A glow plug fuse is located on the left hand side of the engine bay just past the fuel/water separator when looking in the rear door. Refer to Image1.1.2.

Image1.1.1

Image1.1.2

2. Uncover the 50A fuse and look for the nut on the bottom post.

- For 226D Machines, refer to Image1.2.1.

- For 259D Machines, refer to Image1.2.2.

Image1.2.1

Image1.2.2

3. If no nut is found, turn the battery disconnect switch in the rear of the machine to the OFF position to disable battery power to the machine. If the machine is not equipped with a battery disconnect, remove the battery cable from the negative battery post. Refer to Image1.3.1.

Image1.3.1

4. Look for evidence of arcing (brown discoloration) at the 50A fuse connections. Replace the fuse if there is discoloration. If there is discoloration on any other connection on the 100A fuse or power post, replace the entire fuse holder assembly.

Note: For 226D Machines, it will be easier to raise the cab and perform the rework from that side of the machine.

5. If no evidence of arcing is found, install one 8T-0328 Washer and one 5C-2874 Nut to the 50A fuse bottom post. Tighten the nut to a specified torque of 4.5 - 0.5/+ 0.5 N.m.

6. If the 50A fuse requires replacement:

a. Remove the M5 nuts from the top and bottom posts and remove the fuse.

b. Replace the 396-8366 Fuse.

c. Re-install the platform harness terminal onto the top post. Refer to Image1.5.1.

d. Install one 8T-0328 Washer and one 5C-2874 Nut onto each post. Tighten the nuts to a specified torque of 4.5 - 0.5/+ 0.5 N.m.

Image1.5.1

7. If the entire fuse holder assembly requires replacement:

a. Remove three M5 and one M8 nuts that have harness terminals connected to them and free all harnesses. Refer to Image1.6.1.

(1) M5 nut. Top left 50A post. Platform harness terminal.

(2) M5 nut. Top right 100A post. Platform harness terminal.

(3) M8 nut. Bottom center post. Power cable.

(4) M5 nut. Bottom right 100A post. Platform harness terminal.

Image1.6.1

b. Use a 3mm hex driver to remove all four bolts and washers from the frame wall or mounting plate as shown. Keep hardware to install the new assembly.

c. Install a new 378-1011 Fuse Holder Assembly and existing hardware. Tighten the bolts to a specified torque of 2.5 +/- 0.5 N.m.

- For 226D Machines, refer to Image1.7.1.

- For 259D Machines, refer to Image1.7.2.

Image1.7.1

Image1.7.2

d. Reinstall all harness terminals and hardware. Refer back to Image1.6.1.

e. Top left, top right, bottom right posts: Install one 8T-0328 Washer and one 5C-2874 Nut on each post. Tighten the nuts to a specified torque of 4.5 - 0.5/+ 0.5 N.m.

f. Bottom center post: Install one 8F-7242 Washer and one 5C-7261 Nut. Tighten the nut to a specified torque of 8.5 - 0.5/+ 0.5 N.m.