SERVICE MANUAL BULLETIN
This Service Manual Bulletin is prepared by the Publications Department of New Flyer Industries
Canada ULC. Refer to details below.

SMB-195
ISSUE DATE: Apr 12 2021

APPLICABILITY
VEHICLE LENGTH

 30ft.

 35ft.

 40ft.

 60ft.

 Xcelsior®

 MiDi®

 Invero®

 Low Floor

 High Floor

 Diesel

 Diesel/Electric

 CNG

 Fuel Cell

 Trolley/Electric

 Battery/Electric

 ALL

VEHICLE TYPE

FUEL TYPE

 ALL

 LNG
 ALL

SUBJECT

Battery System Inspection

SECTION TITLE

PM - Preventive Maintenance

DETAILS

This bulletin provides additional information on 6,000 Miles (9,600 km)
Preventive Maintenance for the Battery System installed on your New
Flyer vehicles.

This information supersedes any prior information on this subject
already provided in your New Flyer Service Manual.
Make this Service Bulletin available to service personnel to inform them
of changed information.

SMB-195

The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2021 New Flyer Industries Canada ULC

1 of 4

SERVICE MANUAL BULLETIN
SMB-195
1.

BATTERY SYSTEM

1.1.

Inspection

ALWAYS replace batteries with the
same type and size identified in your
New Flyer Parts Manual and charge the
batteries using the recommended voltage. Over-charging a lead acid battery
can produce explosive and hazardous
gas. Any change in battery configuration may require modification to the
charging system voltage levels and battery service procedures to prevent
over-charging and equipment damage.
Consult the battery manufacturer’s recommendations
before
installing
replacement components.
Inspect the batteries, power cables, and
battery tray every 6,000 miles (9,600 km)
as follows:
1. Set the Battery Disconnect switch to the
OFF position.
2. Unlatch the battery tray and pull out to the
fully extended position to allow for proper
inspection of the batteries and cables. See
“ Battery Tray (Typical)” on page 3.

2 of 4

3. Ensure the battery tray slides in and out
smoothly and the roller bearings are in
good condition. Clean the slides as necessary. Replace components if necessary.
4. Check the overall physical condition of the
batteries. Check for cracks or bulging in
the battery case and check for loose terminal posts. Replace damaged batteries as
necessary.
5. Check that batteries are securely mounted
on the battery tray. Check the battery hold
downs for damage or cracking. Tighten
hold-down nuts to 50 in-lb. If equipped
check that the plastic spacers/retainer are
in place on the bottom of tray.
6. Check battery cable connections for tightness and any signs of corrosion. If corrosion exists, disconnect cables from the
posts and clean both with soda solution
and a wire brush. Reinstall nuts and torque
to 10 to 15 ft-lb. (120 to 180 in-lb.), then
coat with dielectric grease.
7. Inspect all power cables for signs of rubbing, chafing, or other damage. Replace
damaged cables as necessary.
8. Inspect the plastic cable guide and power
cables to ensure cables are properly
clamped and secured with tie-wraps as
required. Check cable guide for cracks.
Check cable tie spacers and mounts for
damage.
See “ Battery Components
Inspection” on page 4.

The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2021 New Flyer Industries Canada ULC

SMB-195

SERVICE MANUAL BULLETIN
SMB-195

2
1

3

4
5

13
11

12

10
9

6

8

1

7
1

3

3
14

10
10
8

8

GROUP 8D- 2 BATTERY
(TYPICAL)

GROUP 31- 4 BATTERY
(TYPICAL)

1. Cable Guide

8. Roller Bearing

2. Battery Retainer

9. Battery Spacer (if equipped)

3. Power Cables

10. Slider Channel

4. Battery Hold-Down

11. Battery Disconnect Switch

5. Battery Hold-Down Nuts

12. Battery Cable Ground

6. Slide-Out Battery Tray

13. Engine Ground

7. Battery Cable Connections

14. Insulator Boot

s0296307a.svg

Battery Tray (Typical)

SMB-195

The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2021 New Flyer Industries Canada ULC

3 of 4

SERVICE MANUAL BULLETIN
SMB-195
9. Slide the battery tray in and out while
observing the movement of the power
cables and cable guide. Ensure no contact
is being made between the lower and
upper edge of the cable guide and the battery cables.
10.Inspect all power cables and wiring harnesses for condition. Repair or replace the
cable, harness, and/or protective covering
if any of the following conditions are evident:

12.Set the Battery Disconnect switch to the
ON position.

CABLE TIES

CABLE TIE
SPACER
CABLE TIE
MOUNTS

a. Loose or corroded connections
b. Damaged or missing protective insulator boots on positive terminals of power
cables.
c. Lack of dielectric grease on exposed
power cable terminals. Clean terminals
and reapply dielectric grease.
d. Crushed, cut, or heat-damaged wire
covering (corrugated split-loom).

BATTERY CABLE
CONNECTIONS

e. Blistered, soft, or deteriorated wire
insulation.
f. Excessive buildup of oily residue, dirt or
road grime. Clean as required.
11.Slide the battery tray into the fully retracted
(stowed) position and ensure it is properly
latched.

4 of 4

Battery Components Inspection

The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2021 New Flyer Industries Canada ULC

SMB-195