Checking Tires

NOTE: Tires exposed to sunlight, ozone, or electrical discharge will eventually develop cracks. If these cracks extend to the cord body, the tire should be replaced.

Protect tires from exposure to petroleum products, and chemicals.

Drive carefully. Try to avoid rocks and sharp objects.

IMPORTANT: Tighten wheel bolts to specification every 10 hours until torque stabilizes.

Specification

Drive Wheels -Torque 610 N·m  (450 lb-ft)
Non-Powered Guide Wheels -Torque 312 N·m  (230 lb-ft)
Powered Rear Guide Wheels -Torque 610 N·m  (450 lb-ft)

Check tires daily for damage or noticeably low pressure.

    Visually inspect all tires daily. Consider replacing tire if following conditions exist:

  • Worn tread
  • Unusual or spotty tread wear
  • Isolated bulges or bubbles in tread or sidewall
  • Torn or missing drive lugs
  • Deep cracks or cuts in tread or sidewall that extend to the cord body
  • If the tire repeatedly loses more than 20% of its rated pressure without explanation, and repair does not eliminate repeated pressure loss

IMPORTANT: Maintain correct tire pressure to prevent damage to tires. Verify tires are inflated to specifications.

At least every 100 hours of operation, check tire pressure.

Tire Size Inflation Pressure
Single Drive Tires 20.8 x 42 14 PR (R1, R2) 290 kPa
(2.9 bar)
(42 psi)
Dual Drive Tires 20.8 x 42 14 PR (R1, R2) 248 kPa
(2.5 bar)
(36 psi)
Steering Tires 480/65R24 283 kPa
(2.8 bar)
(41 psi)
Steering Tires 14.9-24 x 12 PR (R4) 290 kPa
(2.9 bar)
(42 psi)
Power Rear Axle Steering Tires 14.9 x 24 12 PR (R2) 262 kPa
(2.6 bar)
(38 psi)
Power Rear Axle Steering Tires 480/65R24 283 kPa
(2.8 bar)
(41 psi)

 

OUO6043,00014A1 -19-10MAR05-1/1