Fluid and Fastener Specifications
□ DISK GANG ASSEMBLY AXLES: The disk gang assembly axles are 2-1/2” in diameter and are
threaded at either end. A 4” heavy cast nut is installed at either end and tightened to complete
the rigid gang assembly. To insure proper functioning and maximum durability, the axle nuts
should be checked and tightened daily during the first (7) seven days of operation when the disk
is new or after replacing any of the gang assembly components. When installing the nut, apply an
anti-seize compound to the threads.
Recommended Torque – 2000-2200 ft/lbs
□ FASTENERS: Tighten all fasteners after the first day of operation and seasonally thereafter to the
following settings.
The torque values in table are for plated unlubricated
bolts and nuts.
Grade 5
Grade 8
□ OIL-BATH BEARING OIL: The oil-bath bearing contains back-to-back tapered roller bearings
operating in gear oil. The bearing has a check plug on the side of the housing. Oil is filled to the
bottom of the check plug hole. Fill oil until it begins to run out the hole.
Recommended Gear Oil – SAE 90W (API GL-4)
A heavier weight of gear oil may be used in hot climates where there may be constant
temperatures in excess of 90°F.
□ TIRE AND WHEEL SERVICE
When checking wheel nut for tightness or remounting
the wheel, tighten the wheel bolts in the sequence
illustrated.
Torque wheel nuts to 280-300 ft/lbs.
Check the tires regularly for cuts or other damage.
Check and adjust tire pressure when tire is cold.
Maintain tire pressure at 90 psi (max 120 psi).
22
Torque (ft/lbs)
Bolt
Diameter
Grade 5 Grade 8
3/8” 23 33
1/2” 57 80
5/8” 112 159
3/4” 200 282
7/8" 322 454
1” 483 682
1-1/4” 840 1363
1-1/2” 1462 2371
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