Lull 944E-42 Service Manual - Manual (Page 170)

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.