MacDon M155 Unloading And Assembly Instructions page 182

11. Lower center-link (A) onto the header with the REEL DOWN
switch on the GSL until it locks into position (hook
release [B] is down).
12. Check that center-link (A) is locked onto the header by
pressing the REEL UP switch on the GSL.
13. Press HEADER UP switch (A) to raise the header to its
maximum height.
14. If one end of the header does NOT fully rise, rephase the
lift cylinders as follows:
a. Press and hold the HEADER UP switch until both
cylinders stop moving.
b. Continue to hold the switch for 3–4 seconds to fully
phase the cylinders.
NOTE:
It may be necessary to repeat this procedure if there is air in
the hydraulic system.
262320
ATTACHING HEADERS
Figure 6.107: Hydraulic Center-Link
Figure 6.108: Ground Speed Lever
166
A
A
B
Revision A