P16-41

Subject: Replacing Double Groove Belt with Single Groove Matched Belts
Field Change Program:
Procedure
Procedure Number:
16-41
Coach Section:
16- Heating & A/C
P/N:
Revision:
A
08-27-1357
Date:
02/21/2020
Type:
Product Improvement
Application:
Coach Model
Model Year
VIN
J4500
2019 - 2020
69367 - 69905
Read this entire procedure before beginning work.
Use Safe Shop Practices at All Times.
To avoid personal injury:
a. Proper Personal Protective Equipment (PPE) must be worn. Safety glasses and
protective gloves are required for working with DEF Fluid.
b. Turn the main battery disconnect switch to the OFF position.
c. Ensure that both the front and the rear wheels are chocked.
d. Position the ENGINE RUN and ENGINE START switches on the engine
compartment remote control box to the OFF position.
e. Allow enough time for components to cool down prior to working in the engine
compartment.
P16-41
Replacing Double Groove Belt with Single Groove Matched Belts
1.0
Description
This procedure outlines steps to replace the double groove belt on the AC compressor
with single groove matched belts.
2.0
Material requirements
ITEM
1
3.0
PART NO
08-27-1538
QTY U/M
1
EA
DESCRIPTION
Belt-A/C Compr, 5VX, matched set
Special Tools
Pry bar.
4 X 4 wooden block.
Belt alignment tool (Vendor: VibrAlign, VPN: 100-BH2)
Belt alignment tool
4.0
Procedure
Open the engine door using the latch behind the curbside service door.
Rotate the lever
counter clockwise
Motor Coach Industries Ltd.
Page 2 of 4
P16-41
Replacing Double Groove Belt with Single Groove Matched Belts
Lift the AC compressor unit from the curbside service door using a prybar. Place a 4 x 4
wooden block on the frame as a support for the prybar. Hold the prybar to remove tension
on the belt.
4X4 wooden block
Pry bar
Remove and discard the double groove belt on the AC compressor.
Double groove belt
Install single groove matched belts, MCI P/N: 08-27-1538, as shown below.
Single groove
matched belts
Motor Coach Industries Ltd.
Page 3 of 4
P16-41
Replacing Double Groove Belt with Single Groove Matched Belts
5.0
Verification
Use the belt alignment tool to verify alignment of AC compressor pulley to the pulley on
the crankshaft following the instructions in the maintenance manual section 16A-2.
Laser line on the tool
End of the procedure
Motor Coach Industries Ltd.
Page 4 of 4