PRODUCT SUPPORT PROGRAM FOR INSTALLING THE ENCLOSURE SPACE HEATER THERMOSTAT ON CERTAIN C27 AND C32 GENERATOR SETS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSTALLING THE ENCLOSURE SPACE HEATER THERMOSTAT ON CERTAIN C27 AND C32 GENERATOR SETS

Usage:

TEBE1724-00

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07Aug2014

U-470

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR INSTALLING THE ENCLOSURE SPACE HEATER THERMOSTAT ON CERTAIN C27 AND C32 GENERATOR SETS
4450 7274		PS44437

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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 must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS44437" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "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

31Aug2016

PROBLEM

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The existing enclosure space heater was installed without a thermostat on certain C27 and C32 Generator Sets. The existing heater will not function correctly without the thermostat installed.

AFFECTED PRODUCT

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Model	Identification Number
C27	GDS00101-00103, 280, 301, 336, 403
C32	JAZ01269, 1316, 1551, 1580, 1583, 1585, 1588

PARTS NEEDED

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Qty	Part Number	Description
1	4238585	THERMOSTAT
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 15% 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%
0-2500 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 1.5-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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Important Safety Information

Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs.

A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools in order to perform these functions properly.

Safety precautions and warnings are provided in this instruction, on the product, and in this product's Operation and Maintenance Manual (OMM). If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard.

Therefore, the warnings in this publication, the warnings that are on the product, and the warnings that are in the OMM are not all inclusive. If a tool, a procedure, a work method, or operating technique that is not recommended by Caterpillar is used, the user must ensure that it is safe for the user and for other people to use.

The user should ensure that the product will not be damaged or the product will be made unsafe by the operation, lubrication, maintenance, or the repair procedures that are used.

WARNING: The generator set must be isolated electrically before and while the rework is performed. Follow the proper lockout tag out procedures to protect against the unexpected energizing or startup of the generator set. Failure to follow these warnings could result in injury to personnel during service. Attach a "Do Not Operate" warning tag to the machine start switch or the controls before you perform any service to the machine.

This procedure has been created for installing the missing thermostat on the enclosure space heater on C27/C32 gensets with installed enclosures. This procedure outlines how to locate and correct this issue.

1. Locate the space heater in the enclosure. C27/C32 Gensets ? The space heater is located / mounted on the roof of the enclosure right above the generator barrel (Approximately) Can be accessed from either side of the enclosure middle maintenance door.

Image1.3.1

2. Open the Cover Plate by unscrewing the bolt as show in the picture

Image1.4.1

3. Disconnect all the conduit power terminal connection wires inside the space heater (as shown)

Image1.5.1

4. Unscrew conduit connector lock nut (Disconnect from space heater) Unbolt (4 X M8) the space heater from the roof brackets.

Image1.6.1

5. Install on the bottom side (next to vents) (Factory standard). Install the thermostat relay in the compartment with mounting screws and operating knob

Image1.7.1

Image1.7.2

6. Installing the capillary tube in its location as shown (Left: Location from Inside, Middle: Capillary Tube, Right: Clipping point outside on top)

Image1.8.1

7. Connect the lead wires of the thermostat as per the schematic / wiring diagram to P1 and H1 Locations provided along with thermostat(Shown Below for reference)

Image1.9.1

8. Install the space heater to the roof brackets with (4X M8 Bolts and washers)

Image1.10.1

9. Connect all the power terminal connection wires back in the space heater (Inside) as per schematic and shown below and tighten conduit connector lock nut on top of the space heater.