MacDon M105 Operator's Manual page 147

8. 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.
9. Check that center-link (A) is locked onto header by
pulling upward on rod end (B) of cylinder.
CAUTION
Check to be sure all bystanders have cleared the area.
10. Start engine and press the HEADER UP switch (A) to
raise header to maximum height.
NOTE:
If one end of the header does NOT raise fully, rephase
the 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.
Cylinders are now phased.
169890
OPERATION
Figure 4.83: Hydraulic Center-Link
Figure 4.84: GSL
133
Revision A