MacDon M1170 Assembly Instructions Manual page 98

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.
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PERFORMING PREDELIVERY CHECKS
88
F
C
E
Figure 4.87: GSL Switches
A - Reel Down
C - Header Tilt Down
E - Header Down
B
Figure 4.88: Header Leg and Draper Header
Support
A
Figure 4.89: Hydraulic Center-Link
B
A
D
B - Reel Up
D - Header Tilt Up
F - Header Up
A
C
B
Revision A