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Operation 17
MAN0654 (Rev. 10/19/2007)
To Remove:
Hold driveline into position, pull locking collar back, and
slide driveline off tractor PTO shaft.
Figure 9. Lock Collar
CONNECTING CUTTER TO TRACTOR
BB840XP (PULL-TYPE)
NOTICE
■ The horizontal distance between the end of the
tractor PTO shaft and the drawbar hitch point
should be 14" for 540 rpm cutter. This distance
must not vary more than plus or minus (1") or the
drive may be damaged when turning.
1. Adjust tractor drawbar to obtain the desired
drawbar-to-hitch-point distance.
NOTE: On some tractors, a drawbar kit must be
used to obtain the required dimension. Check with
your tractor dealer for assistance.
2. Raise cutter tongue to tractor drawbar height with
jack provided.
3. Secure cutter to tractor drawbar with a high-
strength drawbar pin 3/4" or larger. Retain pin in
place during operation.
4. Connect cutter drive line to tractor PTO shaft,
making sure the spring-activated lock pin slides
freely and is seated in tractor PTO splined groove.
5. Move parking jack the storage position on the
tongue.
6. Adjust H-frame bearing height to ensure the front
drive line is parallel to the ground. Secure with 5/8
x 5-21/32 clevis pin and 3/16 x 1-1/2 cotter pin.
7. Attach drive shaft shield to bearing housing using
two 3/8 x 1 cap screws and 3/8 lock washers.
8. Attach safety tow chain to drawbar support. Leave
enough slack for turning.
Hydraulic Connection
1. Inspect hydraulic hoses to ensure they are in good
condition.
2. Clean the fittings before connecting them to the
tractor hydraulic ports.
3. Attach the hydraulic hose from the cutter to the
tractor.
4. Route the hose through the hose holder on H-
frame and be sure the hose can slide freely in the
holder. Do not allow hose slack to drag on the
ground or become caught on tractor protrusions.
5. From the operator position, start tractor and raise
and lower deck several times to purge trapped air
from the hydraulic cylinder.
Interference Check
1. Be sure that tractor 3-point lift links do not interfere
with hydraulic hoses, cutter driveline, or cutter
frame.
2. Check for straight-ahead operation and at full-
turning angles. If there is any interference, remove
the lower lift links.
3. Contact between tractor lift links and cutter parts
can cause damage, especially when turning.
CUTTING HEIGHT ADJUSTMENT
BB840XP (PULL-TYPE)
On pull-type units with optional hydraulic cut-
ting height adjustment, use a single-acting cylinder
with a maximum extended length of 28-1/4" (718
mm) from attaching point center to center.
Cutting height range is from 2" to 13". A hydraulic cylin-
der or ratchet jack is available for cutting height adjust-
ment.
To adjust cutter for normal mowing, select a cutting
height (example: 3 inches). Blades are approximately
11.5" below the deck.
Using any of the optional cutting height mechanisms,
raise or lower the tailwheel and set the center of the
deck is 14.5’ above the ground to achieve a 4" cutting
height.
Loosen the jam nut on the attitude rod that runs from
the tongue to the tailwheel. Adjust rod in or out until
rear of deck is approximately 1/2 inch more than front
of deck.