MODEL CBH 60 MONOBLOCK VALVE REPAIR - DISASSEMBLY

Replacing Spools Seals:

Note: For the purpose of these i nstructions we wi ll consider the control handle side of the valve as the FRONT, and the opposite side as the BACK.

1.Remove control valve from the backhoe.

2.Throughly clean the exterior of the val ve before beginning disassembly procedures.

3. A t th e BACK of th e valve remove all bo nnet assembly part s which are conn ected to th e spool. Keep parts in the order of disassembly. See e ach valve section parts breakdown for the parts involved in the make-up of the bennet assembly.

IMPORTANT: DO NOT rem ove the spoo l f rom the valve. The s eals can be re placed externally. Pre vent spoo ls fro m turni ng or moving by inserting a sc rew driv e thro ugh the clevi s slot, or by running a rod t hrough t he pin hole and using the rod as a handle.

DO NOT ho ld the sp ool with a wrenc h. T his wil l destroy the finish.

4.At th e BACK of the val ve, remove seal retai ner, back-up washer, and spool O-ring seal, or retaining sleeve, bonnet O-ring seal and spool O-ring.

5.Throughly clean counter bores.

6.Install new seals:

A. Spring-Centered Bonnet Assembly Only:

Light ly oil n ew O-ring s eal. Sli de s eal ove r val ve spool and insert weal in counter bore. Replace back- up washer and seal retainer.

B. Float Bonnet Assembly Only:

Lightly oil new O- rings. Ins tall O-ri ngs into spacer.

Slide spacer w ith O-rings

over valve spool be ing

careful to orient as show

n in boom valve s ection

breakdown.

 

7.At the BACK o f the valve replace bonnet assem - bly parts, reversing the order in which they were dis- assembled in step 3. Use 6 - 8 ft. lbs. Tor que to tighten assembly screw on spring cent ered bo nnet assembly.

8. At the FRONT of the valve remove al l parts con- nected to the spool (handle, linkage, etc.).

9.At the FRONT of t he valve rem ove seal plate retainer, back-up washer and spool O-ring seal.

10.Throughly clean counter bore.

11.Lightly oil new O-ring seal. Slide O-ring seal over valve spool and insert in seal co unter bore. Replace back-up washer and seal plate retainer.

12.Reattach all parts connected to the spool (han - dle, linkage, etc.)

Figure 11

 

 

MODEL CBH 60

 

 

 

 

 

 

 

MONOBLOCK VALVE

 

 

 

 

Back Up Washer

Seal Plate

 

FRONT

 

 

“O”- Ring

 

 

 

 

 

 

 

 

Bonnet

Assembly

Float

Bonnet

Assembly

25

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Bush Hog CBH80, CBH60, CBH70 manual Model CBH 60 Monoblock Valve Repair Disassembly
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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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