Bush Hog CBH70, CBH80 Power Beyond Kits, First Procedure, Assembly of a Bush HOG Backho E to a

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POWER BEYOND KITS

FOR TRACTORS WITH OPEN-CENTER HYDRAULIC SYSTEMS

General Description

 

 

FIRST PROCEDURE

 

 

 

 

 

A power beyond appli cation is required to convert a

ASSEMBLY OF A BUSH HOG BACKHO E TO A

hydraulic valve so that pressurized oi l can be direct-

BUSH HOG LOADER VALVE.

 

 

 

 

ed t o anot her “open ce nter” v alve. This allows the

 

 

 

 

backhoe valve and a loader valve, or other accesso -

IMPORTA NT: Improper hydraulic ho ok-up can

ry, to be con nected t o t he tr actor hy draulic s ystem

cause serious damage to backhoe control valv e

simultaneously, without the inconvenience of using a

or othe r hydraulic com

pon ents. Refer to

the

flow diverting valve.

 

 

 

Bush Hog loader O perator’s Ma nual during this

Since the power beyond a pplication is only requir ed

procedure.

 

 

 

 

 

to a

on “open center” hydraulic systems, oil will be con -

When connecting the Bush Hog backhoe valve

stantly flowing from

the pump thr ough the backhoe

Bush Hog front e nd loader valve, the input pressure

and loader or oth er accessory valve, and then back

line from th e tractor will be

connected to the loader

to the reservoir. “Open center” refers to this constant

valve first. The power beyond pressur

e l ine wi ll be

flow through the open center of the valves.

 

connected to th e input pressure port of the backhoe

The assembly instructions cover two conditions that

valve. In ord er to properly plumb the

 

system, t he

loader valv e w ill r equir e converting

 

to a p ower

require a power beyond kit to be ord ered from Bush

beyond valve

. Ref er to the

O perator ’s Manua l

Hog. The first proce dure shows the recommended

received with th e loader for the proper

 

assembly of

metho d of c onnecting a

Bush Hog load er with a

the power beyond valve.

 

 

 

 

 

Bush H og val ve to a Bu sh Hog backhoe. T he sec -

 

 

 

 

 

ond procedure shows the recommended method for

There have be en sever al di fferent v alves used on

connecting a Bush Hog

backhoe and a competitive

the Bush Hog loader in past y

ears. The fittings

loader or a non Bush Hog va lve. The second is also

requires to con vert the Bush Hog loader

valve to a

used to operate the back

hoe and loader

off the

power beyond application are included i n the loader

backhoe PTO pump kit option. In the first procedure,

valve kit. If the fittings (or plugs) cannot be lo cated,

the p ower beyond plug

is included with the l oader

they can b e obtained from Bush Hog Service Parts.

valve when the val ve is ordered. The second proce-

Before at tempting t o orde r the p lug you mu st first

dure requires the power beyond kit for the backhoe

determine the

manufacturer

of the

loade r valv e

valve be ordered from Bush Hog as a separate item.

assembled to your loader. Thi

s can be

determined

The hoses an d fittings required in ei ther procedure

from the identification plate located on the valve.

 

to connect the two valves together are not suppli ed.

1. Insta ll the power beyond pl

ug received wit h th e

The proper fittings and hose lengths required

must

loader valve into valve cavity as shown i n Figure 22

be determined for e

ach sp ecifi c ap plica tion. T he

(Page 4 3). Make sure O-rings on sleeve ae posi

-

parts must be supplied by the customer.

 

tioned properly and are not pinched or damaged.

 

Tractor Preparation

 

 

2. Insta ll a pre ssure li ne (s upplied by cu stomer)

Stop tractor, low er a ll attachments to the gr ound,

between the tractor pressure “out” port and the pres-

sure inlet port of the loader valve.

 

 

 

and relieve pressure in a ll hydraulic lines by m oving

 

 

 

all control handles back and forth or side to side sev-

3. Insta ll a pre ssure li ne (s upplied by cu stomer)

eral times.

 

 

 

between the power beyond fitting of the loader valve

Note: T he t erms RIGHT

and LEF T for all adapter

and the pressu re inlet po rt on th e backhoe connec -

tion as shown in Figure 22.

 

 

 

 

 

parts are determined from the position of the opera -

 

 

 

 

 

tor w hen seate d in the o perating po sition on the

4. Complete assembly of “return” hoses as shown in

backhoe.

 

 

 

Figure 22. Connect tee fitting t o return outlet port on

 

 

 

 

the bac khoe con nector as shown. Connect retu rn

 

 

 

 

hose from return outlet port of the loader valve to the

 

 

 

 

branch port of the tee fitting. Hoses and tee supplied

by customer. Connect a second return hose from the tee fitting directly to a p ort on the tractor reservoir as shown in Figure 22.

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Contents CBH60 / CBH70/ CBH80 06/09 Rev $4.00 50065802Congratulations Table of Contents Retail CUSTOMER’S Responsibility Under the Bush HOG WarrantyThis Limited Warranty Shall not Apply Disclaimer of Implied Warranties & Consequential DamagesDealer Preparation Check List CBH60 CBH70 CBH80 BackhoesThis s ymbol is used to call attenti on to safety This Safety Alert Symbol means ATTENTION! Become AlertYour Safety is Involved Backhoe Important Safety PrecautionsTractor Avoid HIGH-PRESSURE Fluids Adjustments and InspectionTransportation Safety Decals Child Labor Under 16 Years Old EMPLOYERS, Employees and OperationsThis Act Seeks Controls Befor EPO Sition Lock Pins Storage Locations Operating the Backhoe ! CautionPage Bucket should be lowere d to b ed when possible Block and secure tractor onlyFilling the Bucket Dumping the BucketBackfilling MiscellaneousFinishing Straight Walls Service Beginning of SeasonBleeding Backhoe Hydraulic System Hydraulic System HosesLubrication Tooth ReplacementTightening Nuts and Bolts Install the swing safety l ock pin as shown in Figures 1 Place Blocking Under Backhoe Frame For SupportStabilizer Pads Troubleshooting ProceduresProblem Cause Correction Troubleshooting Troubleshooting Troubleshooting Troubleshooting Troubleshooting Troubleshooting Model CBH 60 Monoblock Valve Repair Disassembly Model CBHModel CBH 70, CBH Valve Repair Disassembly Model CBH 70, CBH 80 Valve Assembly CBH 60, CBH 70, CBH Do not cut a ny st rapping that fastensBackhoe mainframe and swing frame t o Skid base at this timeMounting Kits and Optional Kits Assembly General DescriptionMounting Backhoe to Tractor Point Hitch LinkageAttaching KIT Instructions AssemblyModel CBH60 Backhoe 11 14 16 28 115 Model CBH70 Backhoe Attaching KIT Instructions General DescriptionPage Model CBH80 Backhoe Attaching KIT Instructions Page PTO Pump & Reservoir KIT Installation General Description CBH70GPM Pump Do not Remove the Tractor PTO ShieldCBH GPM Pump Installation General Description CBH 80 6.1 GPM Pump CBH Closed Center System CBH 60 & CBH70 Hydra ulic Ho Ok-Up C BH 80 Fo Tractors With Closed- Center HydraulicSystems Figure Backhoe OperationPower Beyond Kits First ProcedureAssembly of a Bush HOG Backho E to a Bush HOG Loader ValveBush HOG Backhoe & Bush HOG Loader Valve Following instructions are to be used to connect Power Beyond Model CBH60 Figure Power Beyond Model CBH70 & CBH80 Figure Installing Thumb to Backhoe Thumb OperationMechanical Thumb Assembled Page Series CBH60 CBH70 CBH80 Torque Specifications SAE Grade 2 No DashesPage Page Griffin Ave. Selma, AL

CBH60, CBH70, CBH80 specifications

The Bush Hog CBH Series is a prominent lineup of compact, high-performance hydraulic blade mowers ideal for maintaining fields, pastures, and overgrown areas. Comprising models CBH80, CBH70, and CBH60, this series is specifically designed for efficiency and durability, making it suitable for various applications, from agricultural uses to residential properties.

One of the standout features of the CBH Series is its robust construction. Each model is built with a heavy-duty frame designed to withstand the rigors of demanding tasks. The decks are made from high-quality steel, offering enhanced durability while maintaining a lightweight design to optimize performance. With reinforced edges and an innovative design, these mowers guarantee longevity and resistance to wear in challenging environments.

The CBH Series integrates advanced hydraulic systems that ensure smooth operation and maneuverability. The hydraulic drive provides excellent power transmission, allowing users to tackle even the most stubborn vegetation with ease. Each model features adjustable cutting height settings, which give users the flexibility to achieve the desired finish. This adaptability is essential for different terrains and types of foliage.

Another key characteristic of the CBH models is their user-friendly design. The intuitive controls allow for easy operation, making it accessible even for those who may not have extensive experience with machinery. The cutting decks feature a quick-release mechanism, streamlining maintenance and facilitating blade changes when necessary.

The CBH80, CBH70, and CBH60 differ mainly in their width and cutting capabilities. The CBH80 boasts an impressive cutting width of 80 inches, making it ideal for large open fields, while the CBH70 offers a 70-inch cutting width, perfectly balancing efficiency and maneuverability. The CBH60, with a width of 60 inches, is designed for tighter spaces, allowing for easy navigation around trees, fences, and other obstacles.

Safety is paramount in the design of the CBH Series. Each model incorporates features such as safety guards and shields to protect users from debris during operation. Furthermore, the mowers are equipped with a quick-stop system that halts blade rotation almost instantly when the operator releases control, enhancing overall safety.

In conclusion, the Bush Hog CBH Series, with its models CBH80, CBH70, and CBH60, embodies a harmonious blend of power, durability, and user-centric design. Equipped with innovative technologies and safety features, these mowers are well-suited for various operational needs, proving to be invaluable tools for anyone looking to maintain their land effectively. Whether you have extensive acres to manage or a smaller yard, the CBH Series offers the versatility and performance to meet your mowing requirements.
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