JLG 450A_AJ Series II Service Manual - Manual (Page 51)

SECTION 3 - CHASSIS & TURNTABLE
3121180 – JLG Lift – 3-1
SECTION 3. CHASSIS & TURNTABLE
3.1 TIRES & WHEELS
Tire Inflation
Pneumatic tire air pressure must be equal to air pressure
stenciled on side of JLG product or rim decal for safe and
proper machine operation.
Tire Damage
Pneumatic Tires
JLG Industries, Inc. recommends when any cut, rip, or
tear is discovered that exposes sidewall or tread area
cords in the tire, measures must be taken to remove the
JLG product from service immediately. Arrangements
must be made for replacement of the tire or tire assembly.
Polyurethane Foam Filled Tires
JLG Industries, Inc. recommends when any of the follow-
ing are discovered, measures must be taken to remove
the JLG product from service immediately and arrange-
ments made for replacement of tire or tire assembly:
• Smooth, even cut through cord plies which
exceeds 3" (7.5 cm) in total length.
• Tears or rips (ragged edges) in cord plies which
exceeds 1" (2.5 cm) in any direction.
• Punctures which exceed 1" in diameter.
• Damage to bead area cords.
NOTE: If a tire is damaged but within above criteria, it must
be inspected daily to ensure damage does not
exceed allowable criteria.
Solid Flex Tires
JLG Industries, Inc. recommends when severe damage is
discovered that can cause any machine instability, mea-
sures must be taken to remove the JLG product from ser-
vice immediately. Arrangements must be made for
replacement of tire assembly.
Inspect tires for cracks, tears, wear, imbedded objects, or
other defects. Remove imbedded objects.
Tire Replacement
JLG recommends a replacement tire be the same size,
ply, and brand as originally installed on the machine.
Please refer to the JLG Parts Manual for part number of
approved tires for a particular machine model. If not using
a JLG approved replacement tire, we recommend that
replacement tires have the following characteristics:
• Equal or greater ply/load rating and size of original
• Tire tread contact width equal or greater than original
• Wheel diameter, width, and offset dimensions equal to
the original
• Approved for the application by the tire manufacturer
(including inflation pressure and maximum tire load)
Unless specifically approved by JLG Industries Inc. do not
replace a foam filled or ballast filled tire assembly with a
pneumatic tire. When selecting and installing a replace-
ment tire, ensure all tires are inflated to pressure recom-
mended by JLG. Due to size variations between tire
brands, both tires on the same axle should be identical.
Wheel Replacement
Rims installed on each product model are designed for
stability requirements which consist of track width, tire
pressure, and load capacity. Size changes such as rim
width, center piece location, larger or smaller diameter,
etc., without written factory recommendations, may result
in unsafe stability conditions.