PI0861

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.
Page
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
Page
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
Page
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
Page
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
Page
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
Page
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
Page
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.
Page
11(11)