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-Maintain the undercarriage, steering wheel and brake units properly functioning;
-Follow road safety rules and apply efficient driving methods considering road conditions,
strictly comply with operation norms of tires with regulated air pressure described in “Warnings” and
“Truck Driving” paragraphs.
4.3.3.1 Maintenance.
Check tire air pressure every day before driving, and pump it to the norm, if necessary.
Tire air pressure is set (designated) for completely loaded truck and is checked in cold tires.
Check tire, wheel and fasteners conditions at daily maintenance. Tires should not have
damages, non-repaired local damages (bottoming, cuts), local thread and side wall separation, and
wheels should not have mechanical damages, corrosion or cracks. Wear of tires should suit for opera-
tion. Remove foreign objects stuck in the thread and side wall. Tire tube valves must be fault-free.
Check that fuel, oil and other petrochemicals do not get to the tires, because they destroy
rubber.
If any faults are detected in tires and wheels, take measures to repair or replace the parts.
When strong or uneven thread wear is detected, which is usually caused, apart from wrong
driving, by truck undercarriage failure, steering wheel or brake failure, find its causes and remedy the
failure.
Wheel fasteners loosening and truck operation is forbidden, if at least one wheel fixation nut
or pin is absent or fixing holes of discs are worn.
Every time when mounting the wheel on boss, independent of disassembly reason, fasten
wheel retaining nuts twice: first time after 100-150 km and second time after 200-300 km.
When performing second truck maintenance, check general wheels and tires condition, if
any defect is detected, repair or replace it, swap, fasten wheel retaining nuts, if necessary and if
wheels with tires were not disassembled from the truck. Besides, when wheels are worn and steering
lever is repaired or replaced, toe-in angle adjustment should be checked, all pipelines and hoses of
tire pressure control system should be aired.
4.3.3.2 Tire Fitting
When assembling and disassembling tires follow the rules:
- completely deflate the tires;
- fit the tires in a special area with dedicated equipment, tools and devices; when in field
conditions, use the tools from the driver’s tool kit, herein, take measures to avoid sand and dirt com-
ing inside the tires;
- tire casing and tire flaps should be clean and dry;
Summary of Contents for 4320M
Page 1: ...URAL 4320М TRUCK and its Modifications ...
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Page 177: ...Figure 140 Installation of left and right side safety devices 171 ...
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