6. Using a #2 Phillips screwdriver, remove the two screws (D) that secure the lower end of the central column to the lower
structural member (E) (Figure 27). Save the screws.
7. Using a #1 Phillips screwdriver, remove the eight screws (F) that secure the top half of the upper plastic cover (G) to the
bottom half of the upper plastic cover (H) (Figure 27). Save the screws.
8. Insert a small screwdriver between the two halves of the upper plastic cover. Separate the two halves. Use caution to
avoid scratching the covers or damaging the lower cover snap pins.
9. Lower the rail to the 14 inch locking position.
10. Position adjustable supports under the siderail to support the siderail when you remove the central column.
11. Using a cordless drill and a #2 Phillips bit, remove the 14 screws (J) that secure the upper end of the posts and the
central column to the upper structural member (Figure 27). Save the screws.
12. Using a 1/2” socket, remove the two bolts and two washers (L) that secure the upper end of the two guide posts to the
structural member (K) (Figure 27). Save the bolts and washers.
13. Remove and save the lower plastic cover.
14. Lift and remove the central column. Use caution to avoid damaging the seal. Discard the central column.
N
No
otte
e -- You must replace the seal if it is damaged during the procedure. Do not install a damaged seal.
15. Using a 3/32” Allen wrench, remove the set screw (A) that secures the handle to the central column shaft (Figure 26).
Save the screw. Remove the handle and install it on the new central column.
16. Install the new column. Insert the bottom end of the central column into the brake shoe and slide the column until the
bottom is seated in the cavity (W) of the lower plastic cover. Use caution to avoid damaging the seal while you insert the
column into the lower plastic cover. While the column slides through the brake shoe, rotate the handle to open the lock
stops (N) when the column reaches each of the fixed stops (Figure 27).
B
A
A
B
B
C
E
W
A
A
D
F
F
H
K
G
L
L
J
J
M
P
N
U,V
U,V
R
S
T
O
Q
F
Fiig
gu
urre
e 2
27
7 –– E
En
nd
drra
aiill cce
en
nttrra
all cco
ollu
um
mn
n rre
ep
plla
acce
em
me
en
ntt
17. Reverse steps to reinstall.
18. Check the stop catch positions and complete steps 18-23 if adjustments are needed.
N
No
otte
e -- Proper adjustment centers the stop catches and evenly distributes the load of the rail. If the stop catches are not
centered, they will rub against the plastic extrusion.
EN
40
1900-009-002 Rev AA.6
