MacDon 974 FlexDraper - Manual (Page 87)

Form # 147083 Issue 01/07 85
UNLOADING & ASSEMBLY
ATTACH HEADER
CAUTION: Read the Operator's
Manuals carefully to familiarize
yourself with procedures and controls
before attaching header to combine.
Attaching instructions are provided in
the Combine Adapter Operator's
Manual.
BLEED HYDRAULIC SYSTEM
Header Lift Cylinders
Raise and lower header a few times to allow trapped
air to pass back to the reservoir.
Reel Lift Cylinders
CAUTION: Take care during this
procedure as air in the system can
cause the reel to raise and lower
erratically. Keep body and hands out
from under reel and reel support
arms.
1. Fully lower header and reel.
CAUTION: Bleed screw (A) may be
forced from hole by hydraulic
pressure. Do not loosen screw too
quickly or too far.
2. SLOWLY loosen bleed screw (A) at top of slave
reel lift cylinder.
NOTE: For 21’, 30’, 36’ & 39’ headers, slave
cylinder is at right end of header. For 25’
Header, slave cylinder is at left end.
3. Start engine and activate reel lift. Left-hand
cylinder will reach full extension first, then oil will
pass to right hand cylinder.
4. Continue to activate reel lift until oil comes out
around bleed screw.
5. Tighten bleed screw.
Reel Fore-Aft Cylinders (if equipped):
To prevent damage to fore-aft components and/or
reel, before moving reel with fore-aft kit:
1. Remove cylinder pins at rod ends and support
cylinders to allow unobstructed movement of
cylinder rods.
2. Activate hydraulics, extending and retracting
cylinders several times to fill system with oil
and ensure cylinders are in phase.
3. Reconnect cylinder rod ends.
REEL LIFT CYLINDER BLEED SCREW
A