Driveline Attachment - Slip Clutch; Slip Clutch Adjustment And Operational Check - Bush Hog BH10 Series Operator's Manual

DRIVELINE ATTACHMENT - SLIP CLUTCH

Before starting assembly, make certain that all
paint, dirt, and grease are removed from
gearbox shaft (1). To ease assembly apply a
light coat of grease to splines and assemble.
Do not assemble a driveline without a shield.
Entanglement in rotating shafts can kill. Figure
Asm-R-0508.
Remove tapered pin from splined clutch hub on
the end of the driveshaft. Remove the access
cover on the clutch shield to expose the
gearbox input shaft.
Slide the slip clutch end of the driveline onto the
gearbox input shaft. Make certain that the slip
clutch is fully onto the input shaft splines. Align
the tapered pin hole in the hub with the grove
on the input shaft. Install the tapered pin,
washer and locknut. Torque the nut to 30 ft. lbs.

SLIP CLUTCH ADJUSTMENT and OPERATIONAL CHECK

1. Remove filler plug on top of gearbox housing and oil level plug on right side of housing. Fill gearbox with
EP80W-90 gear oil until oil just reaches bottom of level plug hole. Allow time for oil to seep through
bearings into lower housing of gearbox and then add oil again to reach level plug hole. Replace filler plug
on top of gearbox.
2. Connect cutter to tractor's 3-point hitch, attaching top link in holes of A-frame struts using customer-
supplied pin. Attach lower link arms to cutter deck using the pins and bushings supplied with the cutter.
Refer to Hitch Pin Setup for correct setup.
3. Connect free end of driveline to tractor PTO shaft by pulling back on collar on driveline yoke and then
sliding yoke onto shaft. Release collar and slide driveline yoke back and forth on shaft until an audible click
is heard (ball collar has seated in groove on PTO shaft).
4. Loosen eight (8) nuts retaining clutch springs by 1/3 of a turn or until spring can be turned with fingers.
5. Start tractor and allow tractor to idle. With tractor at idle speed, engage tractor PTO drive for 2 - 3 seconds
Clutch should slip without turning cutter blades.
6. Disengage tractor PTO and turn off tractor ignition.
7. Re-tighten nuts on clutch springs to within1/64" of original position. Initial spring length shown below.
IMPORTANT: REFER TO CHART ON THE NEXT PAGE FOR PROPER SPRING SET_UP. DO NOT
OVERTIGHTEN NUT AND CAUSE SPRING TO BECOME SOLID AS THIS WILL CAUSE THE SHAFT TO
FAIL.
BH10 Series 03/13
© 2013 Alamo Group Inc.
ASSEMBLY
Assembly Section 3-5