MacDon M1170 Operator's Manual page 189

12. Hydraulic Center-Link without Self-Alignment:
a. Press HEADER TILT UP or HEADER TILT DOWN cylinder
switches on the GSL to extend or retract center-link
cylinder until the hook is aligned with the header
attachment pin.
b. Stop the engine and remove the key.
c. Push down on rod end of link cylinder (B) until hook
engages and locks onto header pin.
IMPORTANT:
Hook release must be down to enable self-locking
mechanism. If the hook release is open (up), manually
push it down after hook engages pin.
d. 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.
e. Start engine.
13. Press the HEADER UP switch (A) to raise the header to
maximum height.
NOTE:
If one end of the header does NOT fully raise, rephase the
lift cylinders as follows:
a. Press and hold the HEADER UP switch (A) until both
cylinders stop moving.
b. Continue to hold the switch for 3–4 seconds. Cylinders
are now phased.
14. Stop the engine and remove the key.
15. Engage safety prop on the windrower's lift cylinder as
follows:
a. Pull lever (A) and rotate toward header to release, and
lower safety prop onto cylinder.
b. Repeat for opposite lift cylinder.
IMPORTANT:
Ensure the safety props engage over the cylinder piston
rods. If a safety prop does not engage properly, raise the
header until the prop fits over the rod.
214733
OPERATION
Figure 4.136: Hydraulic Center-Link
Figure 4.137: GSL
Figure 4.138: Cylinder Safety Prop
173
A
B
A
A
Revision A