PI 0876

Mack Trucks
Greensboro, NC USA
Service Program
Trucks
Date
Group
No.
Release
Page
4.2017
215
876
01
1(8)
Timing Gear Plate Screw, Installation
CHU, CXU
MP8
PI0876, Timing Gear Plate Screw, Installation
(April 2017)
This service program is limited to vehicles with US2017 emission engines with build dates of
October 3, 2016 to November 17, 2016. This repair requires the installation of a missing
screw in the timing gear plate into the flywheel housing as the referenced in this installation
procedure. Clean any silicon debris from the screw hole before installation of the missing
screw is required. The inner fender and the exhaust pipe behind the diffuser will require
removal to gain access to the timing gear plate. Additionally, replacement of the exhaust
clamps and gaskets are required during the reinstallation of the diffuser pipe. Follow the
installation procedure outlined in this Product Improvement (PI).
Note: This bulletin does not apply to MACK Trucks Australia.
PV729-PI0876
USA138913445
Mack Trucks
Service Program
Date
4.2017
Group
No.
Release
215
876
01
Repair Parts
W2122410
Timing Gear Plate Screw Installation Hardware
Item
Description
Part Number
Qty
1
Screw M8*30
984736
1
2
V-clamp
21060426
1
3
V-clamp
21021852
1
4
Gasket
21095721
2
Timing Gear Plate Screw Installation Procedure
You must read and understand the precautions and guidelines in Service Information,
group 20, "General Safety Practices, Engines" 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.
Page
2(8)
Mack Trucks
Service Program
Date
4.2017
Group
No.
Release
215
876
01
1 Park the vehicle on a level surface and turn the front wheels to the left.
2 Apply the parking brake.
3 Place the transmission in neutral or park.
4 Install the wheel chocks.
W7086748
5 Disconnect the cable from the battery’s negative terminal.
W3086747
Page
3(8)
Mack Trucks
Service Program
Date
4.2017
Group
No.
Release
215
876
01
6 Raise the hood.
7 Loosen the clamps securing the exhaust pipe from the diffuser to the Diesel Particulate
Filter (DPF) inlet pipe.
W2122411
8 Remove the exhaust pipe, clamps and gaskets.
Note: Discard the clamps and gaskets, do not reuse.
W2122412
Page
4(8)
Mack Trucks
Service Program
Date
4.2017
Group
No.
Release
215
876
01
9 Check the screw hole for any silicone or debris and clean as needed.
W2122413
10 Install the missing screw in the timing gear plate.
11 Tighten the screw to 24 ± 4 Nm (18 ± 3 ft-lb).
W2122414
Page
5(8)
Mack Trucks
Service Program
Date
4.2017
Group
No.
Release
215
876
01
12 Install the exhaust pipe with new gaskets and clamps.
W2122412
13 Tighten the clamps to 12 ± 1 Nm (9 ± 1 ft-lb).
W2122411
Page
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Mack Trucks
Service Program
Date
4.2017
Group
No.
Release
215
876
01
14 Close the hood.
15 Connect the battery cable to the negative (ground) terminal.
W3086747
16 Remove the wheel chocks.
W7086759
Page
7(8)
Mack Trucks
Service Program
Date
4.2017
Group
No.
Release
215
876
01
Reimbursement
This repair is covered by an authorized Service Program.
Reimbursement is obtained via the normal claim handling
process.
UCHP
Reimbursement
Recall Status
Vehicle inspected, repair not required
1- Inspected OK
Vehicle repaired per instruction
2- Modified per
instruction
Labor Code
Primary Labor Code (Timing Gear Plate Screw, Installation)
2150–02–09–02
0.5 hrs
Time to take charge and determine campaign status
1700–16–01–01
0.3 hrs
Causal Part
984736
SCC Code
S7163
Authorization Number
N/A
Expiration Date
12-DEC-2017
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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