Section 1: Service Instructions OBT 46” – Cable Tension
Adjustment
This manual is intended for trained professionals for adjustment of the Knú Overbed Table. Any
action not outlined in this manual may result in voiding of the warranty.
The overbed table is designed with a system that allows for adjustment of the gas spring cable tension in
the field. As the table acclimates to its environment, the gas spring pressure may cause the cable to
require adjustment. The most likely causes of gas spring issues are cable tension and wear over time.
Before attempting the adjustment, lower the table to 2” above the lowest setting. With hands spread at
each end of the table, push down repeatedly until the table rises to its highest setting. This may fix the
gas spring.
Tools required
#2 Phillips screwdriver
OBT Wrench (provided)
1.0
Table drifts down without application of the handle
1.1 This adjustment requires a #2 Phillips screwdriver.
Using the screwdriver, remove two screws from the plate
as shown in Figure 1. After removal of the plate, take the
wrench from the gasket. This wrench is used to adjust the
cable tension.
Figure 1
Figure 2
1.2 Adjusting the cable tension. All rotations are given looking from the turnbuckle to the lock nut.
Using the wrench, first loosen the lock nut (Figure 2) ¼ turn with the large end of the wrench by turning
counter clockwise. Next, with the small end of the wrench loosen the turnbuckle (Figure 2) ¼ turn
(clockwise). Check the table to see if the downward drift is still present. If so, continue releasing the
turnbuckle ¼ turn at a time until the drift is gone. Tighten the lock nut (clockwise) and replace the plate,
gasket, and wrench.
