Fluid and Fastener Specifications
□ DISC GANG ASSEMBLY AXLES: The disc gang assembly axles are 1-5/8” in diameter (optional
2 -1/8”) and are threaded at either end. A 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 disc is new or after replacing any of the gang assembly components. When installing the nut,
apply an anti-seize compound to the threads. Over tightening the gang axles can damage
components of the gang assembly.
Recommended Torque (Ø1-5/8”) – 800-1000 ft/lbs
Recommended Torque (Ø2-1/8”) – 1000-1200 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 165-175 ft/lbs.
Check the tires regularly for cuts or other damage.
Check and adjust tire pressure when tire is cold.
Maintain tire pressure at 60 psi.
21
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
