Mack Trucks, Inc.
Greensboro, NC USA

Service Program
Trucks
Date

Group

No.

Release

Page

10.2015

364

861

01

1(11)

Clutch Pedal Micro Switch, Replacement
CHU, CXU, GU, TD

PI0861, Clutch Pedal Micro Switch, Replacement
(October 2015)
On Certain MACK CHU, CXU, GU, and TD Trucks built between 07/06/2009 through 09/26/
2014, equipped with “Engine Start Condition, Clutch Pedal Fully Depressed” feature and has
a relay center Electronic Power Distribution Module (EPDM) gasket (part number 82732384)
installed, may experience interference between the clutch pedal micro switch and EPDM
gasket. To prevent interference between the clutch pedal micro switch and the EPDM gasket,
replacement of the clutch pedal micro switch and micro switch mounting bracket is required.
Follow the replacement procedure outlined in this PI (Product Improvement).
Note: This bulletin does not apply to MACK Trucks Australia.

PV729-PI0861

USA72524

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

W3105826

Required Parts
To order parts call (877) 986-5862. The Vehicle Identification Number (VIN) is required for
ordering parts.
Clutch Pedal Micro Switch Replacement Parts
Item #

Description

Part Number

Qty

1

Clutch Pedal Micro Switch

22668899

1

2

Bracket, Clutch SW E

84701803

1

Clutch Pedal Micro Switch Replacement procedure:
You must read and understand the precautions and guidelines in Service Information,
group 30, "General Safety Practices, Electrical" before performing this procedure. If you
are not properly trained and certified in this procedure, ask your supervisor for training
before you perform it.

DANGER
Do not attempt to repair or service this vehicle without having sufficient training, the correct
service literature and the proper tools. Failure to follow this could make the vehicle unsafe
and lead to serious personal injury or death.
1 Park the vehicle on a level surface.
2 Apply the parking brake.
3 Place the transmission in neutral or park.

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2(11)

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

4 Install the wheel chocks.

W7086748

5 Disconnect the cable from the battery’s negative terminal.

W3086747

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3(11)

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

6 Remove the fasteners securing the steering column cover.
Note: Store the fasteners for reuse.
7 Remove the steering column covers (1) and (2).

W3105827

8 Remove the fasteners securing the lower dash panel (1) left side.
Note: Store the fasteners for reuse.
9 Remove the lower dash panel.

W3105828

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4(11)

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

10 Locate the clutch pedal micro switch.

W3105829

11 Disconnect the harness wires from the clutch switch.
12 Remove the harness retainer (1) from the mounting bracket.

W3105830

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5(11)

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

13 Remove the fasteners (1) and (2) securing the clutch pedal micro switch (3) to the
mounting bracket.
Note: Store the fasteners for reuse during installation.
14 Remove the clutch pedal micro switch (3) from the mounting bracket and discard.

W3105831

15 Remove the fasteners (1) securing the mounting bracket (2) to the driver control module
bracket.
Note: Store the fasteners for reuse during installation.

W3105832

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6(11)

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

16 Remove the mounting bracket.

W3105833

17 Position the new micro switch mounting bracket (part number 84701803) on the driver
control module bracket as shown in the figure below.

W3105833

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7(11)

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

18 Using the stored fasteners (1), secure the micro switch mounting bracket (2).
19 Using hand tools, tighten the fasteners to 10 ± 1.5 Nm (88 ± 13 in-lb).

W3105832

20 Position the new (part number 22668899) clutch pedal micro switch (3) on the mounting
bracket and install the stored fasteners (1) and (2).
21 Using hand tools, hand tighten the fasteners.

W3105831

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8(11)

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

22 Connect the harness wires to the replacement clutch pedal micro switch and secure
harness with retainer (1).

W3105830

23 Position the lower dash panel (1) left side, and install the stored fasteners.
24 Using hand tools, hand tighten the fasteners securing the lower dash panel.

W3105828

Page
9(11)

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

25 Position the steering column covers (1) and (2).
26 Using the stored fasteners, secure the steering column covers.
Note: Use hand tools to tighten the fasteners.

W3105827

27 Connect the cable to the battery’s negative terminal.

W3086758

Page
10(11)

Mack Trucks, Inc.
Service Program

Date
10.2015

Group

No.

Release

364

861

01

28 Remove the wheel chocks.

W7086759

Reimbursement
This repair is covered by an authorized
Service Program. Reimbursement is
obtained through the normal claim handling
process.

UCHP
Reimbursement

eWarranty
Reimbursement

Claim Type (used only when uploading from
the Dealer Bus. Sys.)

B

B

Vehicle inspected, repair not required

1- Inspected OK

1- Inspected OK

Vehicle repaired per instruction

2- Modified per
instruction

2- Modified per
instruction

Primary Labor Code (Clutch Pedal Micro Switch,
Replacement)

3646–03–09–01
0.6 hrs

7265A–01–96
0.6 hrs.

Time to take charge and determine campaign
status

1700–16–01–01
0.3 hrs

101AA–0A–00
0.3 hrs

Causal Part

82274560

82274560

SCC Code

S6953

N/A

Authorization Number

N/A

PI0861

Expiration Date

01-OCT-2016

01-OCT-2016

Recall Status

Labor Code

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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