SB-10044822-7386

Service Program
Trucks

Mack Trucks, Inc.
Greensboro, NC USA

This Service Program replaces,
“PI0790, Static Fill Coolant Pipe”,
PV729–PI0790 (USA53388) dated
(05/2012).

Date

Group

No.

Release

Page

6.2012

261

790

02

1( 5 )

Static Fill Coolant Pipe
LEU, MRU
Cummins ISL-G

PI0790, Static Fill Coolant Pipe
(June 2012)
The static fill coolant pipe from the expansion tank can make contact with the starter solenoid
wire and rub through the wire insulation on some MACK LEU and MRU trucks equipped
with a Cummins ISL-G natural gas engine. A spacer (part number 25106640), fastener (part
number 995455), and nut (part number 990939) will be used to relocate the static fill pipe
away from the starter solenoid wire. Additionally, if any starter solenoid wires are exposed,
the starter must be replaced with a new starter (part number 21398109).
Note: This bulletin does not apply to MACK Trucks Australia.

W2073199

Static Fill Coolant Pipe Parts

PV729-PI0790

Item #

QTY

Part Number

Description

1

1

995455

Fastener, M6 X 50

2

1

25106640

Spacer

3

1

990939

Nut

4

1

N/A

Static Fill Coolant Pipe

5

1

N/A

Stand-Off Bracket

USA54117

Mack Trucks, Inc.
Service Program

Date
6.2012

Group

No.

Release

261

790

02

Procedure
You must read and understand the precautions and guidelines in Service Information,
group 20, "General Safety Practices, Engine" before performing this procedure. If you
are not properly trained and certified in this procedure, ask your supervisor for training
before you perform it.
1 Apply parking brake and place shift lever in neutral.
2 Raise cab.
3 Disconnect all cables from the negative (ground) battery terminals to prevent personal
injury from electrical shock and prevent damage to electrical components.
4 Remove the P-clamp fastener and nut securing the static fill coolant pipe to the stanchion.

W2073200

5 Loosen fastener and nut securing pipe and p-clamp at stand-off bracket on the left side
of engine.
Note: Store the fastener and nut for future use.

W2073201

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Mack Trucks, Inc.
Service Program

Date
6.2012

Group

No.

Release

261

790

02

6 Pull static fill coolant pipe away from the stanchion.

W2073202

7

Assemble the spacer (part number 25106640, Item 2), fastener (part number 995455,
item 1), nut (part number 990939, item 3) and p-clamp onto the static fill pipe and
stanchion. Tighten fastener to 10 ± 1.5 Nm (89 ± 13 in-lb).

W2073203

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Mack Trucks, Inc.
Service Program

Date
6.2012

Group

No.

Release

261

790

02

8 Visually inspect the starter solenoid wire for any exposed wires.
Note: If any wires are exposed, replace the starter (part number 21398109). Place a
separate claim for starter replacement toward this service program if replaced.

W2073204

9 Assemble fastener and nut securing pipe and p-clamp at stand-off bracket on the left side
of engine. Tighten fastener to 10 ± 1.5 Nm (89 ± 13 in-lb).

W2073205

10 Reconnect all previously removed cables to the negative (ground) battery terminals.
11 Lower cab.

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4( 5 )

Mack Trucks, Inc.
Service Program

Date
6.2012

Group

No.

Release

261

790

02

Note: To signify that the campaign has been completed, using a permanent-type marker
(such as a Sharpie®) to write the campaign number (PI0790) and completion date in the
spaces provided on the Campaign Completion label located inside the cab as shown in the
illustration below. If a label is not already affixed inside the cab, apply a label (part No.
TS897) and supply the information as required. Campaign Completion labels are available
in packs of 50 and can be ordered by faxing a completed BR313 to Pacesetters Business
Services at 610-264-9465.

W0037061

Reimbursement
This repair is covered by an authorized Service Program. Reimbursement is
obtained through the normal claim handling process.
Claim Type (used only when uploading from the Dealer Bus. Sys.)

B

Recall Status
Vehicle inspected, repair not required

1- Inspected OK

Vehicle repaired per instruction

2- Modified per
instruction

Labor Code
Primary Labor Code
Time to install spacer and inspect starter

2152D-01-96
0.3 hrs

Time to take charge and determine campaign status

101AA–0A–00
0.3 hr.

Causal Part

21615822

Authorization Number

PI0790

Expiration Date

30-MAY-13

Note: Take Charge Time is not included in the Labor Code for this operation. Take charge
may be eligible but can only be used once per repair visit. If vehicle is having other warranty
repairs performed, take charge should be charged to the warranty repair, otherwise take
charge can be charged to this service program.

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