MacDon M1170 Operator's Manual page 176

7. Self-Aligning Hydraulic Center-Link:
a. Press HEADER DOWN switch on the ground speed
lever (GSL) to fully retract header lift cylinders.
b. Press REEL UP switch on the GSL to raise the center-
link until the hook is above the attachment pin on the
header.
IMPORTANT:
If the center-link is too low, it may contact the header as the
windrower approaches the header for hookup.
8. Drive the windrower slowly forward until the draper header
supports (A) enter the header legs (B). Continue driving
slowly forward until lift linkages contact the support plates
in the header legs and the header nudges forward.
9. Ensure that lift linkages are properly engaged in header legs
and are contacting the support plates.
10. Self-Aligning Hydraulic Center-Link:
a. Adjust position of the center-link cylinder (A) with the
switches on the GSL until hook (B) is above the header
attachment pin.
IMPORTANT:
Hook release (C) must be down to enable self-locking
mechanism.
b. If the hook release (C) is open (up), stop the engine
and remove the ignition key. Manually push the hook
release (C) down after the hook engages the
header pin.
c. Lower center-link (A) onto the header with REEL
DOWN switch on the GSL until the center-link locks
into position and the hook release (C) is down.
d. Check that center-link is locked onto header by
pressing the REEL UP switch on the GSL.
214733
OPERATION
C
E
Figure 4.101: GSL Switches
A - Reel Down
C - Header Tilt Down
E - Header Down
B
Figure 4.102: Header Leg and Draper Header Support
Figure 4.103: Hydraulic Center-Link
160
F
A
D
B - Reel Up
D - Header Tilt Up
F - Header Up
A
C
A
B
B
Revision A