Troubleshooting (Continued)

 

 

Problem

Cause

Correction

 

 

 

 

Maximum swing action

Bent piston rod in cylinder

Replace or rebuild the cylinder; replace

 

 

 

 

cannot be obtained

 

 

 

damaged parts.

 

 

 

Something jamming the swing

Remove interference.

 

 

 

 

linkage

 

 

 

 

 

 

 

 

Slow operation of machine

Low oil supply in reservoir

Fill to proper level.

 

 

 

 

(lack of power) all cylinders

 

 

 

 

 

 

 

 

Oil viscosity too heavy, or oil

Use recommended hydraulic fluid. Run

 

 

 

is not at operating temperature

machine until oil reaches operating

 

 

 

 

 

 

temperature.

 

 

 

Insufficient pumping

Advance engine throttle.

 

 

 

 

Divertor valve on prime mover

Divertor valve may need rebuilding or

 

 

 

 

 

leaking externally or bypassing

replacing.

 

 

 

oil internally through valve to

 

 

 

 

 

 

 

 

 

reservoir.

 

 

 

 

 

 

 

 

 

Excessive back pressure

Relieve condition. Restriction may be

 

 

 

 

 

 

 

from outlet to reservoir.

 

 

 

Relief valve setting in backhoe

Relief pressure will have to be checked

 

 

 

 

control valve too low or defective

and corrections made. Backhoe

 

 

 

 

 

 

system pressure is 2000 PSI (CBH60),

 

 

 

 

 

 

2250 PSI (CBH70), 2550 PSI (CBH80),

 

 

 

 

 

 

Relief valve may need cleaning and

 

 

 

 

 

 

overhauling, or entire cartridge must be

 

 

 

 

 

 

replaced.

 

 

Spongy or jerking action

Low oil supply in reservoir

Fill to proper level.

 

 

 

of cylinders and/or noisy

 

 

 

 

 

 

 

 

 

 

 

Air in system

Bleed all circuits of air by operating

 

 

operation

 

 

 

 

 

 

machine at maximum oil flow and

 

 

 

 

 

 

through full movements.

 

 

 

Oil viscosity too heavy, or

Use recommended hydralic fluid. Run

 

 

 

 

oil is not at operating

machine until oil reaches operating

 

 

 

temperature

temperature.

 

 

 

Pump not running

Check pump drive to be sure it is

 

 

 

 

 

 

 

engaged.

 

 

Lift, crowd or bucket

Damaged or worn spool

Replace spool end seals.

 

 

 

cylinders drop under load

seals

 

 

 

 

 

 

 

 

when control spools

 

 

 

 

 

 

 

 

 

 

 

Problems involving the control

This valve is a precision device and is

 

 

shifted from neutral

 

 

 

valve

not intended for any extensive field

 

 

 

 

 

 

adjustment or repair. Field replace-

 

 

 

 

 

 

ment parts are limited to seal kits,

 

 

 

 

 

 

cartridges, valve sections and tie rods.

 

 

 

 

 

 

Replacement of these parts, the

 

 

 

 

 

 

opening of check cavities and certain

 

 

 

 

 

 

relief cavities to examine for trapped

 

 

 

 

 

 

dirt, or resetting of the main relief valve

 

 

 

 

 

 

with the use of good pressure gauge,

 

 

 

 

 

 

should be referred to qualified service

 

 

 

 

 

 

personnel.

 

 

 

 

 

 

 

 

 

 

21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 22 Page 24
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Image 23
Bush Hog CBH70, CBH80, CBH60 manual Troubleshooting
Page 22 Page 24

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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