PRODUCT IMPROVEMENT PROGRAM FOR RETIGHTENING THE BRAKE PEDAL STOP SCREW LOCKING NUTS ON CERTAIN M315D 2 AND M317D 2 EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR RETIGHTENING THE BRAKE PEDAL STOP SCREW LOCKING NUTS ON CERTAIN M315D 2 AND M317D 2 EXCAVATORS

Usage:

TEBE1953-00

Show/hide table

29Sep2014

D-506

Show/hide table

*Safety*	PRODUCT IMPROVEMENT PROGRAM FOR RETIGHTENING THE BRAKE PEDAL STOP SCREW LOCKING NUTS ON CERTAIN M315D 2 AND M317D 2 EXCAVATORS
4269		PI10988

Show/hide table

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 must be administered as soon as possible. When reporting the repair, use "PI10988" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description Code.
Exception: If the repair is done after failure, use "PI10988" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

Show/hide table

PROBLEM

Show/hide table

Improper torque applied on the 5W-1259 Locking Nuts of the 6V-2317 Stop Screws, in the brake pedal group, may cause the bolts to become loose and the pedal can not be depressed to a proper position, on certain M315D 2 and M317D 2 Excavators.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
M315D 2	CH300157, 159, 168, 170-173, 178-179, 183, 185, 187-188
M317D 2	CH500210-00212, 214-217, 221, 224-225

PARTS NEEDED

Show/hide table

No parts needed for this program

ACTION REQUIRED

Show/hide table

Refer to the attached Rework Procedure.

Show/hide table

OWNER NOTIFICATION

Show/hide table

Owners in the following countries will receive the attached Owner Notification:
US
Canada
Australia
New Zealand

SERVICE CLAIM ALLOWANCES

Show/hide table

Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
100%	100%	0%	0%	0%	0%

Show/hide table

NOTE: This is a 1.0-hour job

Show/hide table

PARTS DISPOSITION

Show/hide table

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

MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

Show/hide table

EXAMPLE COPY OF OWNER NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

SAFETY -PRODUCT IMPROVEMENT PROGRAM FOR RETIGHTENING THE BRAKE PEDAL STOP SCREW LOCKING NUTS

MODELS INVOLVED - CERTAIN M315D 2 AND M317D 2 EXCAVATORS

Dear Cat Product Owner:

The locking nuts, in the brake pedal group, need to be retightened on the products listed below. The existing stop screws, in the brake pedal group, can move if the locking nuts are not tightened to the proper specification. This could keep the brake pedal from being able to fully depress, and cause the brake function to not activate completely.

Contact your local Cat dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated.

You may now search for open Safety Service Letters by entering your product serial number(s). Visit the SAFETY.CAT.COM website and click on the Product Safety page for more information. Please refer the dealer to their Service Letter dated 29Sep2014 when scheduling this service.

We regret the inconvenience this may cause you, but urge you to have this service performed for your safety and satisfaction.

Caterpillar Inc.

Identification #(s)

Attached to 29Sep2014 Service Letter

Rework Procedure

Show/hide table

Complete the following Rework Procedure in order to retighten the locking nuts

1. Park the machine on level ground.

2. Remove the bottom cover. Refer to Image1.1.1.

Image1.1.1

3. Connect the pressure gauge to the pressure test port. Refer to Image1.2.1.

4. Start the engine, set the engine speed at dial 1.

Image1.2.1

5. Depress brake pedal into the locked position. Watch the pressure gauge and adjust the stop screw in order to keep the brake pressure at the operating bar, then tighten the front locking nut (A) to a specified torque of 28 +/- 7 N.m. Refer to Image1.3.1.

6. Disengage the pedal, watch the pressure gauge and keep the brake pressure to 0 bar by adjusting the rear stop screw position. Tighten rear locking nut (B) to a specified torque of 28 +/- 7 N.m. Refer to Image1.3.1.

7. Stop the engine.

8. Refer to SEBU9198, Operation and Maintenance Manual, for brake system testing.