CARRIER-PLANETARY 8W9697 - Caterpillar

Tire Inflation (Charging) With Nitrogen
Servicing and changing tires and rims can be dangerous. This work must be done only by trained personnel with correct tools and procedures. If correct procedures are not followed while servicing tires and rims, the assemblies can burst with explosive force and cause serious physical injury or death. Follow carefully the specification information provided by your tire servicing man or dealer.
When tires are changed be sure to clean all rim parts. If necessary, paint the components to prevent corrosion. Sand blasting is recommended for removal of rust. Check all components carefully and replace any cracked, badly worn, damaged, severely rusted or corroded parts with new parts of the same size and type. If there is any doubt, replace with new parts. Never rework, weld, heat or braze any rim components.The tires on these machines are inflated (charged) with nitrogen instead of air. The recommendation is that nitrogen be used for pressure adjustments in a tire. See your tire dealer for the correct tire pressures for job conditions and for any questions on nitrogen inflation.
Correct Position For Tire Inflation (Behind the Tread)
A tire blowout or rim failure can occur during tire inflation. To prevent possible injury, get next to (behind) the tread, as shown, when inflating a tire.Set the regulator of the nitrogen inflation equipment at no more than 140 kPa (20 psi) over the correct tire pressure.
Use only the 6V4040 Nitrogen Tire Inflation Group to inflate tires from a nitrogen gas cylinder. See Special Instruction, Form Number SMHS7867 for tire inflation instructions.Use the same tire pressures for nitrogen inflation that are used for air inflation. See the Maintenance Guide for the shipping pressure. See your tire dealer for operating pressures.
Wheel Coolant
Not enough wheel coolant or not correctly used or dragging brakes can cause enough heat to burn the tire bead. A burning bead gives off gases inside the tire. The gases can cause an explosion (sudden break) which throws the tire, rim and parts of the final drive as far as 460 m (1500 ft.).If smoke, too much heat, smell of burning rubber or hot brakes, or other indications of tire bead burning are noticed, move the machine to a remote area. Do not permit personnel within 460 m (1500 ft.) of the machine until the tire cools. Eight hours may be needed to cool the tire.Heat from a machine can cause a tire explosion. Stay 460 m (1500 ft.) from a rubber tired machine that is on fire. Death or personal injury can result, if a tire explodes, while a fire is put out.
The coolant must be the correct type, mixture and level to work correctly. The recommended coolant solution is 20% mixture of ethylene glycol type antifreeze (2P9868) and 80% water. Oil or any other fluid, other than what is recommended, must never be used as a wheel coolant. The coolant level must be checked at least every 1000 hours as recommended in the Lubrication and Maintenance Guide. In addition, on earlier