ASTEC 40 Series - Appendix A: Disc Wheel Installation; Wheel Type Mixing Warning; Hub-Piloted Wheel Installation; Stud-Piloted Wheel Installation

IB-2003 Series 40 Transfl ite - Stationary Conveyor
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Appendix A: Disc Wheel Installation
Disc Wheel Installation
Torque Chart - Wheel Installation
Mounting Type Nut Thread Torque Level
Hub-piloted with
fl ange nut
Stud-piloted, double
cap nut-standard type
(7/8” ball seat radius)
Stud-piloted, double
cap nut-heavy duty
type
(7/8” ball seat radius)
11/16” - 16
M20 x 1.5
M22 x 1.5
3/4” - 16
1-1/8” - 16
15/16” - 12
1-1/8” - 16
1 5/16” - 12
300-400 ft.lbs. (oiled)
280-330 ft.lbs. (oiled)
450-500 ft.lbs. (oiled)
450-500 ft.lbs. (dry)
450-500 ft.lbs. (dry)
750-900 ft.lbs. (dry)
750-900 ft.lbs. (dry)
750-900 ft.lbs. (dry)
2. Install nuts using proper
installation sequence
shown to the right. Snug
nuts to 50 ft.lbs. Do not
tighten fully until all nuts
have been seated. Then
torque to specifi cation as
shown on the torque chart
below using the same
sequence used for
installation.
3. After wheel assembly has
been installed, recheck the
torque level after 50-100
miles of operation and
retighten if necessary to
the recommended torque
using the proper sequence
as shown to the right.
a. To check and retorque
an inner cap nut, it is
necessary to loosen
NOTICE
1. Hub-piloted wheels
For nuts used on hub
piloted wheels, apply two
drops of oil to a point
between the nuts and
fl anges and two drops to
the last 2 or 3 threads at
the end of each stud.
Lightly lubricate the pilots
on the hub to ease wheel
installation and removal.
Do not get lubricant on
the mounting face of the
drum or wheel.
Stud-piloted wheels
Do not use lubrication on
nuts used on stud-piloted
wheels. Never lubricate
wheel or nut ball seats or
mounting faces. If
lubrication is used, consult
the wheel manufacturer
for torque
recommendations.
Never mix hub-piloted and
stud-piloted wheels, hubs,
and nuts. The result could
be loss of torque, a cracked
wheel or possible wheel
loss.
the outer cap nut fi rst
and then tighten the
inner cap nut.
Retighten outer cap
nuts to the proper
torque.
b. It is recommended that
a torque check be
made when checking
the tire pressure.
Information courtesy of The Maintenance Council of The American Trucking Association). For complete wheel service
guidelines see TMC RP-222, “User’s Guide to Wheels and Rims”.