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Maintenance
7.8 Adjusting Track-Belt Tension
WHEN TO ADJUST BELT TENSION
Track belt tension needs to be adjusted when:
a nut and bolt become loose
●
a belt pulls away from the track more than 1-1/2 in.
●
(3.8 cm) when measured using Method 1 on Page 27.
a belt pulls away from the track more than 1 in. (2.5
●
cm) when measured using Method 2 on Page 27.
Important
Adjusting the belt tension is a two-person operation.
TOOLS NEEDED
2 ea
1 ea
1 ea
TENSION-ADJUSTMENT
1.
Open the track and lay the chair on its back on a
workbench as shown in Figure 34.
Stand the chair on its wheels on a workbench, then
open the track and engage both wheel locks.
2.
Loosen the bolt and black cap locking nut located at
the top end of the track (Figure 35).
3.
Slide the #4 Phillips screwdriver into the adjustment
slot (Figure 35).
4.
While one person tensions the belt by using the #4
Phillips screwdriver to pull the belt roller toward the
top of the track, the other person uses the two 7/16-
inch wrenches to tighten the bolt and nut only enough
to hold the tension (Figure 36).
26
7/16-inch Wrench
#4 Phillips Screwdriver
Ruler or Measuring Tape
OR
Figure 34 - Chair Positioned for Tensioning Procedure
(See Step 1 for Alternate Position)
#4 Phillips
Screwdriver in
Adjustment Slot
Loosened Bolt
Figure 35 - Belt Ready for Tensioning
Figure 36 - Tensioning the Belt
© Ferno-Washington, Inc 234-3298-02 May 2009
59, 59-T EZ Glide®
Loosened
Black Cap
Locking Nut
(not visible in photo)
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