NOTE

The installation of batteries or the connection of electrical terminals to an external power source is required
for the following steps.

NOTE

The following tests are performed with an empty load (excluding the driver).

NOTE

Before performing these tests, make sure that all objects in the way are removed (e.g. safety supports).
NOTE

120 psi minimum in the reservoirs at all times and make sure that the doors have air.

1.33.

Place the master control switch in the RUN position and front start the engine.

1.34.

Place the kneeling and ramp master switch in the ON position (See Figure 16).
NOTE

Make sure that the ramp is retracted and that the doors are closed.
1.35.

Activate the kneeling switch to begin kneeling (See Figure 16).

NOTE

Make sure that the underbody does not rest on the axle. No contact is allowed.

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Figure 16 - Kneeling Switch

1.36.

The alarm must sound during kneeling and the exterior yellow indicator lights must blink.

1.37.

Check that the yellow dashboard tell-tale lights up and remains lit until the command to raise is given.

1.38.

Allow the bus to settle.

1.39.

Measure the kneeling height with a measuring tape in accordance to table 5 from the top of the wheelchair
ramp floor to ground.

NOTE

This height is only for reference purposes as the measurement is subjective based on the ground measuring
from the table.
Front kneeling height wheelchair ramp x ground specification

11 1/8” -0” / +1/2”

Minimum

11 1/8”

Maximum

11 5/8”

Table 4 - Ground Measuring

1.40.

Activate the kneeling switch to start rising.

NOTE

The cycle ends when the brake interlock releases.
1.41.

Turn off the master run switch.
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LEVELING VALVE KIT
BOM FOR LEVELING VALVE KIT
•

N30292 Linkage Kit 2 per bus if needed

•

Kits includes items below

•

Link x1

•

Grommet x1

•

1/4" Stud x2

•

Hose clamp x1

•

P-mount x1

•

Lock Washer 1/4 x4

•

Hex Bolt 1/4 -20NC x4

Linkage Kit being used with the leveling valve
The Kit includes:
Link (P/N 22025-3)

1x

Grommet (P/N 26424)

1x

1/4" Stud

2x

Hose clamp (P/N 25921-6)

1x

P-Mount (P/N 26425-1)

1x

Lock Washer 1/4"

4x

Hex Bolt 1/4-20NC

4x

PAGE 19 OF 29
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NOTE

For more information on the raising and lowering of the vehicle, refer to section 18: HOISTING AND TOWING
of the Nova LFS maintenance manual. Respect your current internal safety procedures. Use the proper
hoisting equipment for your safety.
1.42.

Raise the vehicle to locate rear leveling valves, one on each side (See Figure 17).

Figure 17 - Location of Rear Leveling Valve

1.43.

Loosen top and bottom nut (See Figure 18).
Top

Bottom
Figure 18 - Loosening the Nuts

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1.44.

FT5329

Leveling valve with top and bottom nut loosened (See Figure 19).
Top

Bottom
Figure 19 - Leveling the Valve

1.45.

Leveling valve removed from the bus (See Figure 20).

Figure 20 - Removal of Leveling Valve

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1.46.

Pre-assemble new valve, adjustment will be done after installation (See Figure 21).

Figure 21 - Installation of New Valve

1.47.

Install the support rod and hardware for top and bottom (See Figure 22).
Top

Nut

Nut

Flat washer

Lock washer
Bottom

Figure 22 - Installation of Support Rod and Hardware

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1.48.

FT5329

Secure top and bottom hardware and torque the nuts to 8.1 ± 0.75 lb ft (11 ± 1N●m) (See Figure 23).

Torque 8.1 ± 0.75 lb ft (11 ± 1N●m)

Hardware

Figure 23 - Tightening the hardware

1.49.

Slide the adjustment rods (See Figure 24).

1.50.

Adjust leveling valve as per ride height instructions.
Top

Bottom
Figure 24 - Adjusting the Leveling valve

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REPLACEMENT OF STABILIZER BAR BRACKET AND BUSHING

N94050

N11173
N11173

N94049

N11174
N93851

N11174

Item

Part

Description

1

2385481

Bracket Stabilizer Bar

2

N11121

Bolt M8 X 1,25 X 30

3

N11173

Washer Flat M8

4

N10859

Lock Nut M8 X 1,25

5

N94049

Retainer Stabilizer Bar

6

N94050

Retainer Stabilizer Bar

7

N93851

Clamp Retainer Stabilizer Bar

8

N11774

Bolt M10x40 Hx

9

N11243

Nut Locknyl M10

10

N11174

Washer Flat M10

11

N91245

Cushion Mounting
PAGE 24 OF 29

NQF772001 VERSION 3

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FT5329

TOOLS REQUIRED:
•

13 mm socket
WARNING

FOLLOW YOUR INTERNAL SAFETY PROCEDURES.
1.51.

Raise the vehicle.
NOTE

For more information on the raising and lowering of the vehicle, refer to section 18: HOISTING AND TOWING
of the Nova LFS maintenance manual. Respect your current internal safety procedures. Use the proper
hoisting equipment for your safety.
1.52.

Locate the stabilizer bar brackets under the bus rear suspension and check for signs of damage
(See Figure 25).

Figure 25 - Location of Stabilizer Bar

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FT5329

NOTE

Replace one at a time as to not displace stabilizer bar. Any part with signs of scrap or deform should be
replaced.
1.53.

Replace all the brackets hardware. Use 13mm socket to remove the hardware (See Figure 26).

Figure 26 - Hardware Replacement

1.54.

Check Rubber bushing for damage and remove any damaged bushing with a small pry bar (See Figure 27).

Figure 27 - Typical View of Damaged Bushing

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1.55.

Remove and replace the bushing retaining clamp (See Figure 28).

N93851

Figure 28 - Removal of Retaining Clamp

1.56.

Install the new bushing (See Figure 29).

1.57.

Add Never seez between roll bar and rubber bushings at installation.

Figure 29 - Installation of New Bushing

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1.58.

FT5329

Install new bracket with new hardwares (bolts, lock nuts and washers) in the front and rear (See Figure 30).

Figure 30 - Installation of Bracket and Hardwares

1.59.

Torque locknuts to 18±2 Nm and torque seal (See Figure 31).

Torque 18±2 Nm

Figure 31 - Locknuts Tightening Torque

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NQF772001 VERSION 3

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1.60.

FT5329

Torque locknuts to 47±4 Nm and torque seal (See Figure 32).

Torque 47±4 Nm

Figure 32 - Locknuts Tightening Torque

1.61.

Lower the vehicle.

1.62.

The vehicle can return in service.

PAGE 29 OF 29
NQF772001 VERSION 3