MacDon 873 Combine Adapter - Manual (Page 10)

Form # 147069 Issue 09/06 8
HEADER ATTACHING & DETACHING
ATTACHING HEADER TO COMBINE AND ADAPTER
1. At first use, refer to “Preparing the Adapter” in
the Assembly section of this manual to
properly adjust the position of the adapter leg
pins, down stops, retracting tine drum and skid
plates for your combine make and model,
header model and crop type.
2. Attach adapter to combine feeder housing.
See "Adapter Mounting Instruction" at back of
book.
3. Choose an area that is as level as possible.
Cutterbar should be on the ground unless
ground conditions are soft. If ground
conditions are soft, place 2x4 (40 mm) blocks
at both ends of cutterbar. Also in soft ground
conditions, an 8 ft. length of 2x4 laid in
direction of travel under the feed pan and
cutterbar will prevent scooping dirt when
driving in.
4. For 972/973/974 Headers, be sure header
stand is secure in the down position, with pin
(A) below channel as shown.
For 963 Headers with gauge wheels, be
sure gauge wheels are in stand position (E) at
both outer legs.
For 963 Headers without gauge wheels, be
sure header stand (F) is in the down position
at both outer legs.
CAUTION: Be sure area is clear of
bystanders before starting engine.
5. Place clevis pins from header legs in storage
position (B). Slowly drive combine forward,
aligning adapter legs with header legs.
IMPORTANT: Keep the adapter leg height just
under the header legs to ensure the adapter
leg seats properly in the linkage supports in
the header lower legs. For 974 Flex Headers,
tie the cam arm (D) up when engaging adapter
into header. Cam arm must rest on top of
adapter down stop.
Take care not to crush hydraulic hoses when
driving into header.
HEADER STAND – 972/973/974
A
E
F
WITHOUT GAUGE WHEELS
963 HEADER STAND POSITION
963 GAUGE WHEELS
963/973 - STORE HEADER PINS - 974
TIE CAM ARM – 974 HEADER
B
D
B