MacDon M155 Operators Manual - Manual (Page 228)

OPERATION
5. Activate HEADER TILT cylinder switches on ground
speed lever (GSL) to extend or retract center-link
cylinder so that the hook lines up with the header
attachment pin.
6. Stop engine and remove key from ignition.
Figure 4.239: GSL
7. Push down on rod end of link cylinder (B), until hook
engages pin on header and is locked.
IMPORTANT:
Hook release must be down to enable self-locking
mechanism. If the release is open (up), manually
push it down after hook engages header pin.
8. Check that center-link (A) is locked onto header by
pulling upward on rod end (B) of cylinder.
Figure 4.240: Hydraulic Center-Link
9. Start engine and press HEADER UP switch (A) to raise
header to maximum height.
NOTE: If one end of the header does NOT raise fully, the
lift cylinders require re-phasing. If re-phasing is
needed, proceed 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.
Cylinders are now phased.
Figure 4.241: GSL
169883
212
Revision A