4-4 BLADE HOLDER REMOVAL (Fig. 4-3)

WARNING

THE CUTTER CAN FALL FROM HYDRAULIC SYSTEM FAILURE. TO AVOID SERIOUS INJURY OR DEATH, SECURELY SUPPORT CUTTER BEFORE WORKING UNDERNEATH.

NOTE

The spindle is a straight splined shaft, not a tapered shaft. Do not hit on end of spindle shaft as this will damage spindle assembly.

A. Remove cotter pin and castle nut.

B. Pull blade holder off shaft. It may be necessary to remove blades and pan, then remove blade hold- er with gear puller.

Figure 4-3 Blade Holder Skid Filler Skid Shoe

Chain

Guard

Assembly

Lower Shaft Nut

4-5 BLADE HOLDER INSTALLATION

A. If blades were removed, perform steps “C” and “D” in paragraph 4-6 to reinstall blades and pan.

B. Assemble blade holder and castle nut onto spindle shaft. Tighten nut to 300 ft./lbs. (406 Nm).

C. Insert cotter pin.

4-6 BLADE REPLACEMENT

WARNING

THE CUTTER CAN FALL FROM HYDRAULIC SYSTEM FAILURE. TO AVOID SERIOUS INJURY OR DEATH, SECURELY SUPPORT CUTTER BEFORE WORKING UNDERNEATH.

It is not necessary to remove the complete blade holder assembly to replace the blades. Blade bolts are accessible through a hole in the top of the cutter deck. Blades should only be replaced in matched pairs. Use only genuine Bush Hog replacements parts.

A. Remove nuts from blade bolts.

B. Inspect blade bolt shoulder for wear. Replace if necessary.

C. Assemble new blades and pan to blade holder using blade bolts, nuts and lockwashers. Tighten

nuts to 450 ft./lbs. (610 Nm).

D. Check to be sure that blades will swing freely. If blades will not swing freely, remove, locate prob- lem, and repair. Operating cutter when blades will not swing freely will cause excessive stress and vibration causing damage to implement.

4-7 CABLE ADJUSTMENT

A. Extend slide cylinder completely. Assure full extension by measuring from center of mounting pin to center of opposite mounting pin. Measurement should be 72-3/4 in. (1847.8 mm).

B. Put slack into cables by loosening eye bolts (if necessary).

C. Position counterweight box 1 inch (25.4 mm) from hydraulic tank.

D. Tighten eye bolts until slack is taken out of cables.

4-8 ADJUSTING HYDRAULIC PRESSURE

The hydraulic pressure for the cast iron system is preset from the factory at 3200 psi. If a hydraulic pressure adjustment is necessary, contact your authorized Bush Hog dealer.

WARNING

DO NOT ATTEMPT TO ADJUST HYDRAULIC SYSTEM PRESSURE. AN INCORRECT ADJUSTMENT COULD CREATE EXTREMELY HIGH PRESSURES RESULTING IN PERSON- AL INJURY AND EQUIPMENT DAMAGE.

4-9 CHANGING BLADE ROTATION

(Fig. 4-4)

To change the direction of blade rotation perform the following procedures:

WARNING

DO NOT OPERATE CUTTER WITH COUNTERCLOCKWISE BLADE ROTATION UNLESS CUTTER DECK IS EQUIPPED WITH SAFETY CHAINS AND THE OPERATOR WEARS SAFETY GLASSES AND SAFETY (HARD) HAT. SAFETY CHAINS WILL REDUCE AMOUNT OF DEBRIS THROWN TOWARD OPERATOR. IT IS HIGHLY RECOMMENDED THAT OPERATOR BE PRO- TECTED WITH ROLLOVER PROTECTIVE SYSTEM (ROPS) ENCLOSED CAB AND THAT SEAT BELT BE USED FOR ALL MOWING OPERATIONS.

A. Remove hydraulic pressure and return lines from connections on motor.

B. Remove hydraulic fittings from both sides of motor.

C. Remove bolts retaining motor to spindle hous- ing.

13

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Bush Hog SM 60 manual Blade Holder Installation, Blade Replacement, Cable Adjustment, Adjusting Hydraulic Pressure
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SM 60 specifications

The Bush Hog SM 60 is a versatile and durable rotary mower designed primarily for use in agricultural and landscaping applications. Known for its robust construction and exceptional performance, this machine is ideal for managing grass, brush, and overgrown vegetation, making it a valuable asset for farmers, ranchers, and landowners alike.

One of the main features of the Bush Hog SM 60 is its cutting width, which measures 60 inches. This allows for efficient mowing of large areas, reducing the time spent on maintenance tasks. The mower is equipped with a heavy-duty gearbox that provides reliable power transmission while enhancing its overall durability. This ensures that the SM 60 can handle tough mowing conditions with ease.

The design of the Bush Hog SM 60 incorporates a sturdy frame made from high-quality materials, which provides stability and strength. The mower is built to withstand harsh environments and frequent use, ensuring long-lasting performance. Additionally, the SM 60 features a reinforced deck that helps to prevent soil buildup and maintains clean, efficient cutting.

Technologically, the Bush Hog SM 60 is equipped with a set of three high-lift blades that are designed for superior cutting performance. These blades facilitate efficient grass distribution, resulting in a clean cut that promotes healthy regrowth. Furthermore, the blade design reduces the risk of clumping, which is especially crucial in wet conditions.

Another noteworthy characteristic of the SM 60 is its adjustable cutting height. Users can easily modify the height of the mower to achieve the desired level of cut, providing flexibility for different mowing conditions and types of vegetation. This feature is particularly beneficial when transitioning between various terrains, ensuring optimal performance no matter the situation.

The Bush Hog SM 60 is designed to be compatible with a variety of tractors, making it a versatile tool for any operator. Its ease of attachment and operation allows users to quickly switch from one implement to another, enhancing overall productivity.

In summary, the Bush Hog SM 60 is a powerful rotary mower that combines durability with efficiency. Its impressive features, including a wide cutting deck, robust construction, and high-performance blades, make it an exceptional choice for anyone in need of a reliable mowing solution. Whether it's for maintaining pastureland, managing brush, or enhancing landscape aesthetics, the Bush Hog SM 60 stands out as a top-tier option in the rotary mower market.
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