After Five Hours of Operation
A/C Belt Check
E63283-UN-19JUN12
E63284-UN-23APR12
A - Air Compressor Belt
B - Compressor Hardware
After the first 5 hours of operation check the tension of the air-conditioning compressor belt.With the engine off and the key removed, open the engine hood to the lowest position.
Loosen the compressor mounting hardware (B).
Pry compressor away from engine until belt tension and deflection (at mid-span) are within specifications.
| Item | Measurement | Specification |
| Air Conditioning Compressor Belt | Force | 35—55 N (8—12 lb.) |
| Deflection | 5 mm (3/16 in.) |
Tighten hardware.
Caster Wheel Nuts
E63274-UN-19APR12
E63273-UN-19APR12
Forked Caster Nut Pattern
E63272-UN-19APR12
A - Forked Caster Wheel Nut (8-used)
B - Formed Caster Wheel Bolt (6-used)
Check forked caster wheel nuts (A) and formed caster wheel bolts (B) every 5 hours of operation.Torque the nuts and bolts in a cross pattern by following a sequence as shown in the photographs.
Repeat checks until torque stabilizes.
| Item | Measurement | Specification |
| Forked Caster Nut | Torque | 163 N·m (120 lb-ft) |
Caster Wheel Dampener Bolts
E63275-UN-20APR12
A - Inboard Dampener Cylinder End Bolt
B - Outboard Dampener Rod End Bolt
Check the caster wheel anti-shimmy dampener bolts after the first 5 hours of operation.Inboard bolt (A) at cylinder end and outboard bolt (B) at the rod end of dampener have different torques.
IMPORTANT: Torque values vary from inboard to outboard.
| Item | Measurement | Specification |
| Inboard Bolt | Torque | 135 N·m (100 lb-ft) |
| Item | Measurement | Specification |
| Outboard Bolt | Torque | 115 N·m (85 lb-ft) |
Walking Beam Bolts
E63276-UN-20APR12
Walking Beam Bolts
A - Upper Walking Beam Bolts (4 each side)
B - Lower Walking Beam Bolts (2 each side)
Torque the walking beam bolts after 5 hours of operation.
| Item | Measurement | Specification |
| Walking Beam Bolts | Torque | 447 N·m (330 lb-ft) |
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OUO6043,0000202-19-20130130 |