Lull 944E-42 Service Manual User Manual download pdf (Page 170)

100

101

Axles, Drive Shafts, Wheels, Tires and Brakes

5.24

Model 644E-42/944E-42 Rev. 6/04

c. Tire and Wheel Lubrication

Prior to mounting the tire onto the rim, apply a suitable

lubricant to the bead-seat area of the wheel rim and tire

bead. Use a lubricant specified by the wheel and tire

manufacturers.

d. Mounting Tire Onto Wheel

1. Read, understand and follow the above warning

message.

2. Clean, inspect and replace the wheel if necessary.

DO NOT use a damaged or cracked wheel.

3. Orient the tire in the direction of forward travel

required.

4. Lubricate the inner tire and rim beads with an

approved, tire-mounting lubricant only. NEVER use

anti-freeze, silicones or petroleum-based lubricants.

5. Push the inner bead of the tire over and around as

much of the wheel rim as possible. Use tire irons or a

suitable, commercially available pneumatic tire

installation machine to work the bead completely

over the rim in small increments. Be careful not to

damage the bead.

6. Lubricate the outer tire and rim beads with an

approved tire-mounting lubricant.

7. Starting opposite the valve hole, use tire irons to

work the outer tire bead over the wheel rim. Work

the bead completely over the rim in small increments

(DO NOT damage the bead).

8. Install a new valve stem into the valve stem hole on

the wheel.

9. Center the tire on the wheel. Inflate the tire until it

fully seats on the wheel rim or to 35 psi (241,1 kPa).

DO NOT exceed 35 psi (241,1 kPa). Use an

extension hose with a clip-on air chuck and pressure

gauge to permit the installer to stand at a safe

distance from the tire. Each tire bead will usually

snap or pop into place, indicating that the bead is

seated.

Note: If either bead should fail to seat at 35 psi

(241,1 kPa), the tire may be pinched or another source

may be interfering with proper mounting. DO NOT

increase inflation pressure to seat the beads. Remove

the valve core and completely deflate the tire. Break both

beads loose from the rim and inspect the tire, rim and

inner tube, if applicable. Lubricate the tire bead, install

the valve core and repeat the 35 psi (241,1 kPa) inflation

procedure until the beads seat properly.

10. After the beads have seated, remove the valve core

and fully deflate the tire, but DO NOT break the bead

or separate the tire from the wheel. Reinstall the

valve core and inflate the tire to 65 psi (448 kPa).

WARNING: Risk of death or serious

personal injury. Use an approved, tire-

mounting lubricant only. NEVER use anti-

freeze, silicones or petroleum-based

lubricants.

WARNING: Risk of death or serious

personal injury. Using incorrect tire mounting

methods, or using damaged or dirty

components could result in an explosive

separation. When mounting a tire onto a

wheel, follow the “Wheel Mounting

Instructions” box below.

Wheel Mounting Instructions:

• Use the appropriate specialty tools and

equipment for mounting a tire to a wheel or for

dismounting a tire from a wheel, or have a

qualified professional perform the work. DO

NOT attempt to mount or dismount a tire without

the proper tools, training and equipment.

• Clean and inspect the wheel rim before

installing a new tire. Verify that the wheel rim

diameter exactly matches the tire rim diameter

molded into the tire.

• Inspect the inside of the tire for dirt, foreign

material, loose cords, cuts, penetrating objects

and other damage. DO NOT use tires with

irreparable damage.

• Use an approved, tire-mounting lubricant only.

NEVER use anti-freeze, silicones or petroleum-

based lubricants.

• Use safety chains, or place the wheel and tire

assembly in a safety cage when deflating a tire

or when inflating a newly mounted tire.

• Inflate the tire to the cold-operating pressure

recommended by the tire manufacturer.

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Lull 944E-42 Service Manual User Manual Page 170

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