Bush Hog CBH60, CBH80 manual Model CBH70 Backhoe Attaching KIT Instructions, General Description

MODEL CBH70 BACKHOE ATTACHING KIT INSTRUCTIONS

3-POINT HITCH LINKAGE & HYDRAULIC HOOK-UP TO TRACTOR HYDRAULIC SYSTEMS.

General Description

Mounting and hydraulics kits do not include hoses which connect the backhoe control valve to the trac - tor hydr aulic sys tem. Ad ditional hyd raulic co mpo- nents, hoses and/or kits will be required to complete the hook-up to the tractor hydrauli c system. Refer to the Hydraulic Hook-up section for further information. Pumps and reservoir kits are available as options. The bac khoe is mounte d on the tractor lower link arms and a n a djustable upper link is supplied to replace the tractor upper link. A set of stabilizer arms is included. They b olt from the adjustable upper link to the backhoe mainframe, l ocking the hoe r igidly in one position.

IMPORTANT: Tractor lowe r link s must be kept free of lif ting forces at all times after installat ion of the attaching kit, by keeping t ractor quadrant lever in the lowered position.

IMPORTANT: If the 3-Point Kit is to be used with a PTO & Res ervoir K it, t he R eservoir Tank and it’s fittings should be installed before proceeding with the 3-Point installation.

ASSEMBLY

IMPORTANT: Tighten all hardware to t he require- ments specified in the torque chart.

!WARNING

To prevent bodily injury, do not operate backhoe unless Lower L ink Weldments (17, 18) are prop - erly installed and adjusted. Failure to do so may result in backhoe being t hrust upward, crushing operator against cab or ROPS.

1.Use hoist to raise the backhoe mainframe so that the boom piv ot pin is approximately 14” off t he ground.

2.Back tractor c lose to the back hoe. Conn ect tractor lower link arms to lower link mounts using two L-pins (14), two Cotter Pins (11), and two Wire Form Cotter Pins (12).

NOTE: If tr actor has a Category I I hitch, inst all two Bushings (15) in lower link arms.

3.Attach Upper Braces (21), to bac khoe with 3/4 x 7-1/2” Bol t ( 50, Lockwashe r (9), Flat Washe rs (10) and N ut (7). Do n ot tighten hardware at this time.

4.Install Bushing (13) or Bushing (16) in the Upp er Bar (20) that mostclosely matches the diameter of the tractor upper link pin. No bushing is necessary for Category II tractors.

5.Secure Upper Bar (20) between Upper Braces (21) using 3/4 x 4-1/2” B olt (3), Flat Washer s (10) , Lockwasher (9) and Nut (7). Use hoist to raise or lower backhoe slightly until a hole in the upper bar aligns with a hole in the upper braces.

6. Attach RH Lower Link We ldment ( 17) and LH Lower Link Weldment (18) to backhoe mainframe using 3/ 4 x 2- 1/4” Bolt ( 2), Flat Washer (10) , Lockwasher (9), and Nut (7).

7.Align RH and LH Link Weldment (17, 18) with the upper bar/brace assembly, as close to the tr actor as possible. Use3/4 x 6” Bolt (4), Flat Washer (10), Lockwasher (9) , and Nut (7 ). You may ne ed t o return to Step 6 and readjust upward or downward the boltconnection.

8.Remove backhoe from the tractor.

9.Install connector plate (19) to RH and LH Low er Link Weldments (17, 18) using 1/2 x1-3/4” Bolt (1), Lockwasher (8) and Nut (6).

10.Tighten all hardwareat this time. Check your instal- lation very carefully to be sure allmembers are cor- rectly installed and securely fastened.

11.If using optional PTOPump and Reservoir Kit pro- ceed to that section prior to remounting the back- hoe onto the tractor.

12.Connect hoses from the backhoe control valve to the tractor hydraulic system as desc ribed in “Hydraulic Hook-Up” section, prior to remounting the backhoe onto the tractor.

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