Bush Hog DHP10, Operator'S Manual

Page: 30 / 68

ASSEMBLY
DHP8, DHP10, DHP12 05/21 Assembly Section 3-6
© 2021 Alamo Group Inc.
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DISC GANG ASSEMBLY
Be careful when working with disc blades as the edges are sharp. Wear gloves when
working around disc blades.
Keep feet and other body extremities out from under the disc gangs to prevent serious injury
or death from crushing or falling blade hazard.
Make sure gang arms (1) are assembled to the disc frame before attaching disc gangs (2) to
the swing arms. See “Gang Arm Assembly”. Disc gangs (2) come assembled from the
factory and include all spacers, discs, bearings and gang hanger brackets. Disc gangs are
provided in 7-1/” and 9” spacing and with plain or notched disc blades depending on model.
If your harrow has two gangs with 7-1/2” spacing, and two gangs with 9” spacing, the 9”
spacing always goes in front.
U-Bolts (3) are longer for attaching optional scraper bars and are always located in both
holes of the disc gang mounting brackets. Optional scraper kits can be added anytime using
the supplied U-Bolts, nuts, and washers.
1. Start with the rear disc gangs. Position them under the rear swing arms.
2. Lower the disc frame gang arms within close proximity of the mounting brackets as follows:
Method #1:
Use the hydraulic cylinder to raise the lower the frame with gang tubes attached arms.
Method #2:
Raise the front of the frame up to lower the rear gang arms and raise the back of the frame up
to lower the front gang arms.
3. Align disc gangs with gang tubes and then drop U-Bolts over the gang tubes into the mounting bracket
holes.
4. Continue lowering the swing arms until they are touching the mounting bracket holes.
5. Install 3/4” washers (5) and 3/4” nylocks (4) to the U-Bolts (3). Draw nuts up loosely.
DO NOT TIGHTEN.
6. Repeat steps 1 to 5 to attach the front disc gangs to the front swing arms.