ASSEMBLY
BH400/BH500 Series 10/19
Assembly Section 3-6
© 2019 Alamo Group Inc.
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 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 on next page.
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.
ASSEMBL
Y
Summary of Contents for BH400 Series
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Page 9: ...Safety Section 1 1 2019 Alamo Group Inc SAFETY SECTION...
Page 18: ...SAFETY BH400 BH500 Series 8 18 Safety Section 1 10 2019 Alamo Group Inc SAFETY...
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Page 28: ...SAFETY BH400 BH500 Series 10 19 Safety Section 1 20 2019 Alamo Group Inc SAFETY...
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Page 85: ...Introduction Section 2 1 2019 Alamo Group Inc INTRODUCTION SECTION...
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Page 147: ...Maintenance Section 5 1 2019 Alamo Group Inc MAINTENANCE SECTION...
Page 150: ...MAINTENANCE BH400 BH500 Series 10 19 Maintenance Section 5 4 2019 Alamo Group Inc MAINTENANCE...
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