Post Hole Diggers • Compact • Standard • Heavy Duty MODEL 90 / MODEL 100 / MODEL 110 # 100623 # 100498 # 100624 Operation Manual ! This safety alert symbol identifies important safety messages in this manual. Failure to follow this important safety information may result in serious injury or death.
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Table of Contents Important Safety Information ......................................................4 Intended Use ...............................................................................4 Personal Protective Equipment ...................................................4 General Safety .............................................................................5 Safety Decals ...............................................................................7 Assembly Instructions......................
Important Safety Information ! WARNING WARNING: Read and thoroughly understand all instructions and safety information before assembling or operating this post hole digger. Failure to do so may cause serious injury or death. Do not allow anyone to operate this post hole digger who has not read this manual. As with all power equipment, a post hole digger can be dangerous if assembled or used improperly. Do not operate if you have doubts or questions concerning safe operation.
Important Safety Information ! DANGER GENERAL SAFETY Failure to follow warnings, cautions, assembly and operation instructions in the Operation Manual may result in serious injury or death. Read the Operation Manual before operation. • Do not permit others that have not read and understood the complete Operation Manual to operate this equipment. • Keep all people and pets a minimum of 10 feet away from the work area when operating this post hole digger.
Important Safety Information ! DANGER • Make sure that the tractor brake is set before deploying the post hole digger. • Do not manually deploy the auger. • Do not manually position or force the auger into the ground. • Turn off tractor engine before leaving the seat of the tractor. • Do not move the tractor with the power take off in the ON position. • Do not exceed the 540 RPM PTO operating speed. ! DANGER • NEVER OPERATE THE POST HOLE DIGGER WITH THE AUGER MORE THAN 6 INCHES ABOVE GROUND LEVEL.
Important Safety Information SAFETY DECALS Make sure all safety warning decals are attached and in readable condition. Replace missing or defaced decals. Contact Dirty Hand Tools at 1-877-487-8275 for replacement decals.
Assembly Instructions Step 1: Fill the gear box with lubricant. The gear box is shipped without lubricant. Fill the top hole with EP90 lubricant or equivalent. The gear box holds 25 fluid oz. (0.7 liters). Fill to the bottom of the plug on the side. Do not overfill as this can cause damage to the seals. Check the oil level every 50 hours of operation. Step 2: Attach the boom.
Assembly Instructions The universal joint should be greased with chassis lube every week. Grease the sliding drive shaft members with moly grease at the beginning of each season of use. All post hole diggers are equipped with quick release universal joints on the PTO end for a 1-3/8 in. splined shaft. Step 7: Attach the tractor end of driveline. Attach the tractor end of the driveline to the tractor PTO shaft.
Operating Instructions ! WARNING WARNING: Read and thoroughly understand all instructions and safety information before assembling or operating this post hole digger. Failure to do so may cause serious injury or death. Step 1: Lower auger. After attaching the post hole digger to the tractor, before engaging the power, slowly lower the auger to the ground at the desired angle for hole digging. Step 2: Engage PTO.
Maintenance ! WARNING ALWAYS PERFORM MAINTENANCE OPERATIONS WITH THE TRACTOR’S ENGINE POWERED OFF, PTO DISENGAGED, AND THE AUGER TIP RESTING ON THE GROUND. Before operation check all safety shields. Replace shields that are worn or broken before operating the post hole digger. When the self-sharpening points on the auger show excessive wear it is important to replace them. Check the oil level after every 50 hours of operation. Use EP90 lubricant or equivalent and fill to oil level plug.
Post Hole Digger Parts List 17 4 14 16 3 7 15 10 2 8 12 6 13 11 1 9 6 5 Item # Part # Description 1 2 100551 101197 101314 100549 101203 101309 100643 101302 100607 101317 100603 106263 102120 102351 102150 100575 100609 100574 100610 100576 100130 100611 100084 100125 Tube, 3 Pt A Frame Round, Model 100 Tube, 3 Pt A Frame Round, Model 90 Tube, 3 Pt A Frame Round, Model 110 Boom, Model 100 Boom, Model 90 Boom, Model 110 Gearbox Covered Assembly Gearbox Covered Assembly, Model 110 Ge
Auger Parts List 6 3 1 4 5 2 Auger Diameter Number of Cutting Edges 6 in. 9 in. 12 in. 18 in. 24 in. 2 2 4 4 6 Item # Part # Description Qty 1 100618 Auger Flutes 1 3 100619 Auger Cutting Tooth 2 2 4 5 6 100620 100574 100059 100581 Auger Tip Hex Bolt, 1/2 in. - 13 x 3-1/2 in., G5 Hex Nut, M12 x 1.75 in., G8.8 Carriage Bolt, 1/2 in. - 13 x 2 in.
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Warranty & Specifications IMPORTANT NOTICE We, the manufacturer, reserve the right to change the product and/ or specifications in this manual without notification. The manual is for information usage only and the pictures and drawings depicted herein are for reference only. Warranty Repair and Service Do not return this product to the store for warranty issues or repair. Call our customer service department at 720-287-5182, 1-877-487-8275, or visit www.dirtyhandtools.
