PR & OS Owner’s Manual

MAINTENANCE

PERIODIC MAINTENANCE

Periodic maintenance should be performed at the following intervals:

Maintenance Operation

Every Use (daily)

Every 25 Hours

 

 

 

Inspect for loose, worn or damaged parts.

 

z

 

 

 

Check engine oil

z

 

 

 

 

Inspect belt

 

z

 

 

 

Engine (See Engine Manual)

 

 

 

 

 

Grease reel bearings

 

z

 

 

 

Inspect and clean engine air filter

z

 

 

 

 

Oil height adjustment linkage

 

z

 

 

 

FLAIL BLADE WEAR

1.Wait for engine to cool and disconnect spark plug.

2.Close fuel valve on engine (if available).

3.Lean unit back onto lower handles and secure in place.

4.Inspect blades for wear, and immediately replace any bent or cracked blades. Measure the overall length of the blade. (See fig. 1)

5.If blades measure less than 3.25"(83 mm) in overall length they must be replaced. NOTE: We recommend replacing all the flails at once.

SLICING BLADE WEAR

1.Wait for engine to cool and disconnect spark plug.

2.Close fuel valve on engine (if available).

3.Lean unit back onto lower handles and secure in place.

4.Inspect blades for wear, and immediately replace any bent or cracked blades. Measure the overall length of the blade from the center of the attachment bolt to the tip of the worn blade.

5.If blades measure less than 3"(76 mm) in length they must be replaced. NOTE: We recommend replacing all the blades at once.

Fig. 1

ROTATING FLAIL REEL END TO END

To maximize flail blade life and performance the reel can be rotated end to end periodically to provide a fresh lead cutting edge. Takes approx. 20 min. and requires 1/2" and 9/16" socket wrenches with extension bar.

1.Wait for engine to cool and disconnect spark plug.

2.Close fuel valve on engine (if available).

3.Lean unit back onto lower handles and secure in place.

4.Remove (7) lock nuts (item 62 & 40) holding the belt and shaft guards (item 21 & 22) in place. It is necessary to lower the height adjust lever to reach the locknuts on the guards. Remove the guards.

5.Remove the drive belt (item 9) by "walking" it out of the groove on the reel pulley (item 2).

6.Remove the (4) lock nuts (item 60) and washers (item 68) holding the bearings (item 23) to the frame of the unit.

7.The reel is now free from the machine. Slide the reel down and out of the machine.

8.Remove the capscrew (item 71), lockwasher (item 57), reel pulley (item 2), key (item 42), and reel spacer (item 10) from the end of the reel.

9.Rotate the reel end to end, and re-install these items on the opposite end of the reel.

10.Re-install the reel in reverse order of removal. Re-install the guards in reverse order of removal.

DRIVE BELT REPLACEMENT

NOTE: Takes approx. 10 min. and requires 1/2" socket wrench with extension.

1.Wait for engine to cool and disconnect spark plug.

2.Remove (4) lock nuts (item 62) holding the belt guard (item 21) in place. It is necessary to lower the height adjust lever to reach the locknuts on the guard. Remove the guard.

3.Remove the belt (item 9) by rotating the reel pulley (item 2) and walking it out of the groove. Discard old belt

4. Install new belt using same procedure to walk the belt into the groove.

5.With new belt installed pull bail rod back to engaged position and measure extension of idler spring. Spring should stretch 3/4" - 1" (19 25 mm) with bail engaged. Adjust clutch cable as necessary to achieve this extension.

6.Re-install the belt guard.

Part No 350324

13

Form No F021108D

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Billy Goat PR600S, PR500HT, OS551H, PR550T, OS600S Periodic Maintenance, Flail Blade Wear, Slicing Blade Wear
Page 12 Page 14

PR600S, OS551H, OS600S, PR500HT, OS551 specifications

The Billy Goat brand is renowned for its durable and efficient outdoor power equipment, particularly in the realm of leaf blowers, vacuums, and brush cutters. Among the standout offerings are the OS551H, PR600S, OS551, OS600S, and PR500HT models, each designed to tackle specific tasks with efficiency and ease.

The OS551H is a powerful outdoor clean-up tool featuring a robust Honda engine that ensures high performance and reliability. With its innovative design, this model offers excellent maneuverability and is perfect for tackling large areas with leaves and debris. The OS551H also boasts a debris management system that allows users to effectively collect and mulch leaves, making it a favorite among landscaping professionals.

The PR600S is a versatile and user-friendly power rake. It is built to effortlessly remove thatch and promote healthy lawn growth. With adjustable height settings, the PR600S accommodates various turf types and conditions. Its powerful engine and durable construction make it an ideal choice for homeowners and professionals seeking to enhance lawn health and aesthetics.

Meanwhile, the OS551 model features a robust blower designed for clearing debris effectively. Its compact design allows for easy operation in tight spaces, making it suitable for both residential and commercial use. Additionally, it employs advanced noise-reduction technology, ensuring quieter operation while still maintaining powerful air output.

The OS600S is an upgraded version of its predecessor with an enhanced airspeed capacity, allowing it to move large volumes of air efficiently. This model is particularly advantageous for heavy-duty clean-up tasks, such as clearing thick leaves or debris after storms. The ergonomic design ensures operator comfort during extended use, reducing fatigue and enhancing productivity.

Lastly, the PR500HT is a high-performance power rake optimized for heavy-duty lawn care. It incorporates advanced features such as adjustable rake depth and high-speed operation, allowing it to tackle thick thatch effectively. The PR500HT is designed for both ease of use and longevity, making it a preferred tool among lawn care enthusiasts and professionals alike.

In conclusion, Billy Goat’s OS551H, PR600S, OS551, OS600S, and PR500HT models reflect a commitment to quality, efficiency, and user-friendliness. Whether for residential or commercial applications, these machines offer the technology and durability needed to meet various outdoor maintenance challenges.
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