Figure 37 - Checking Tension With Chair Laying On Its; Figure 38 - Checking Tension With Chair Standing On Its - Ferno EZ Glide 59-T User Manual

Models 59 and 59-T Evacuation Chair
5. There are two methods for checking belt tension. You can use whichever method you prefer, but do not use
the chair position from one method with the measurement range from the other method.
Use Method 1 (below, left) if the chair is laying on its tracks on a work bench. Use Method 2 (below, right)
if the chair is standing on its wheels.
It may be necessary to repeat the tensioning and measuring one or more times to achieve the correct belt
tension.
6. When the belt tension is correct, finish tightening the bolt and nut to maintain the tension.
7. Repeat Steps 2-6 to adjust the tension of the other track belt.
METHOD 1
Chair Must Be Laying on Its Tracks on a
Work Bench
Grasp the belt at the track midpoint and pull the
belt away from the track to remove any slack,
then measure the distance between the exposed
surface of the track and the inner surface of the
belt. Take the measurement at the track midpoint.
The belt is correctly tensioned when the
measurement from the exposed surface of the
track to the inner surface of the belt is 1-1/4 in.
to 1-1/2 in. (3.175 cm to 3.8 cm), as in Figure 37.
Figure 37 - Checking Tension with Chair
Laying on Its Tracks on a Work Bench
© Ferno-Washington, Inc. 234-3298-01 October 2005
METHOD 2
Chair Must Be Standing on Its Wheels
Grasp the belt at the track midpoint and pull the
belt away from the track to remove any slack,
then measure the distance between the exposed
surface of the track and the inner surface of the
belt. Take the measurement at the track midpoint.
The belt is correctly tensioned when the
measurement from the exposed surface of the
track to the inner surface of the belt is 3/4 in. to 1
in. (1.9 cm to 2.5 cm) as in Figure 38.
Figure 38 - Checking Tension with Chair
Standing on Its Wheels
Maintenance
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