© Mar. 2023 34 AB16EJ Plus Maintenance Manual
CHASSIS AND TURNTABLE ASSEMBLY
5.2 TIRE ASSEMBLY
Check Tires and Rims
Check the tires and rims daily and replace the tire if any
of the following defects is found:
• The tire is severely cracked, broken, deformed or
has other abnormalities.
• The tire ply has a smooth, uniform cut with a total
length of more than 75mm (3in).
• The tire ply has a crack or fissure that exceeds
25mm (1in) in either direction.
• The tire has a perforation with the diameter of over
25mm (1in).
• The tire has a large bulge.
• The wear extent of the tire’s off-ground support sur-
face exceeds 25%.
Fig 1
Check Wheel Fasteners
The wheel fasteners should be tightened before the ma-
chine is put into service for the first time and after each
tire is removed. Check and tighten the wheel fasteners
to the specified torque every 3 months or 250 working
hours.
Replacement Requirements
• The tires and rims on the machine have been
designed and selected according to the overall
performance and load stability requirements of
the machine, so their models, rim width, instal-
lation center surface, diameter, etc. must not
be changed, otherwise it may result in an un-
safe condition regarding stability.
• Use the special wheel nut that suits the rim
bolt. The wheel nuts must be installed and
maintained with the proper tightening torque
to prevent loose rims, broken studs and tire
detachment from the axle. Be sure to only use
the nut that matches the cone angle of the
wheel.
Hunan Sinoboom Intelligent Equipment Co., Ltd. recom-
mends the replacement tire be of the same size, ply rat-
ing and brand as the original tire. For the tire part
number of a specific machine model, please reference
its Parts Manual. If the replacement tire is not as Hunan
Sinoboom Intelligent Equipment Co., Ltd. recommends,
the following requirements should be met:
• With the ply rating/rated load capacity and dimension
equal to or greater than the original.
• With the tire tread contact width equal to or greater
than the original.
• With the wheel diameter, width and offset dimen-
sions equal to the original.
• Approved for the application by the tire manufacturer
(including intended purposes, maximum drive speed
and maximum tire load, etc.).
• Due to the size difference between different tire
brands, both tires on the same axle should be of the
same brand.
NOTICE
Unless specifically approved by Sinoboom, do not
replace foam-filled tires with pneumatic tires.
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