AGKNX 400 User manual

3-Point Post Hole Digger
PART # 24-0361, MODEL 400
PART # 24-0362, MODEL 650
PART # 24-0318, MODEL 1000
PART # 24-0337, MODEL 1500
Operation Manual
This safety alert symbol identies important safety
messages in this manual. Failure to follow this important
safety information may result in serious injury or death.
29-019

Intended Use ......................................................................4
Personal Protective Equipment..........................................4
General Safety....................................................................5
Safety Decals .....................................................................7
Assembly Instructions ........................................................8
Operating Instructions......................................................12
Maintenance.....................................................................13
Parts List Model 1500 ......................................................14
Parts List Model 1000 ......................................................15
Parts List Model 650 ........................................................16
Parts List Model 400 ........................................................17
Warranty & Specications ................................................18
Regisitration .....................................................................19
TABLE OF CONTENTS

IMPORTANT SAFETY INFORMATION
PAGE 4
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.
Call our customer service department at 303-278-0664,or email at [email protected] if
you have any questions or concerns about the safe operation of this equipment.
INTENDED USE
Do not use the post hole digger for any purpose other than digging post holes in the soil
when connected to a 3-point linkage system and power take o of a tractor. Any other use is
unauthorized and may result in serious injury or death.
PERSONAL PROTECTIVE EQUIPMENT:
When operating this post hole digger it is essential that you wear safety gear including safety
glasses, steel toe shoes and tight tting gloves (no loose cus or draw strings).
Do Not wear loose clothing or jewelry that can be caught by moving parts of the post hole digger
including the auger and driveline. Keep clothing and hair from all moving parts when operating.

IMPORTANT SAFETY INFORMATION
PAGE 5
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 children to operate this equipment at any time. 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. Only the operator is to be near the post hole digger during use.
●Do not operate the post hole digger when under the inuence of alcohol, drugs or
medication.
●Do not allow a person who is tired or otherwise impaired or not completely alert to operate
the post hole digger.
●Always check with authorities for underground utlities before digging holes. Serious injury or
death could result from contact with gas or electric lines.
●Read the Tractor's operation manual concerning the proper attachment and use of 3-point
equipment and safety.
●Always make sure that all safety shields are in place and securely fastened. Do not operate if
any shields are missing.
●Make sure that the auger point and cutting edges are intact and in good working condition
prior to use.
ALWAYS OPERATE THIS POST HOLE DIGGER FROM THE TRACTOR SEAT. ONLY ONE
PERSON SHOULD OPERATE THE DIGGER.
DO NOT ATTATCH THE POST HOLE DIGGER TO THE TRACTOR WITH THE ENGINE
RUNNING.
DO NOT OPERATE THE POST HOLE DIGGER WITH ANYONE IN CONTACT WITH ANY PART
OF THE IMPLEMENT, PTO DRIVELINE OR AUGER.
SERIOUS INJURY CAN RESULT FROM ENTANGLEMENT WITH MOVING PARTS.

IMPORTANT SAFETY INFORMATION
PAGE 6
●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 o tractor engine before leaving the seat of the tractor.
●Do not move the tractor with the power take o in the ON position.
●Do not exceed the 540 RPM PTO operating speed.
●ONLY PERFORM MAINTENANCE such as lubrication, adjustments and repairs with the
tractor engine turned o, the PTO disengaged and the auger point resting at ground level.
●ALWAYS replace shear bolts with the correct shear bolt size and grade (SAE Grade 5). Never
use a shear bolt that is longer or larger than what is specied in the operation manual for that
post hole digger model.
●NEVER OPERATE THE POST HOLE DIGGER WITH THE AUGER MORE THAN 6 INCHES
ABOVE THE GROUND LEVEL. Operating the post hole digger in an elevated position may
cause the PTO driveline u-joints to bind resulting in equipment damage and operator injury.
●ALWAYS turn o the post hole digger if a rock or other obstacle is encountered during
operationg to prevent damage to the gearbox and possible operator injury. Shear bolts could
become welded to the input shaft of the drive shaft if left running after being sheared.
●If the auger is stuck do not pull the auger out using the tractor. Damage to the digger boom
and gearbox can occur. Turn o the tractor, disconnect the auger from the gearbox and
manual remove the auger from the hole.

IMPORTANT SAFETY INFORMATION
PAGE 7
SAFETY DECALS
Make sure all safety warning decals are attached and in readable condition. Replace missing or
defaced decals. Contact AGKNX at 303-278-0664 for replacement decals.
1) Part # 29-026
2) Part # 29-024
3) Part # 29-023
4) Part # 29-023
5) Part # 29-020
6) Part # 29-021
7) Part # 29-027
8) Part # 29-025
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ASSEMBLY INSTRUCTIONS
PAGE 8
STEP 1:
The gear box is shipped without lubricant. Fill the top hole with EP90 lubricant or equivalent. The
gear box holds 25 uid oz. (0.7 liters). Fill to the bottom of the plug on the side. Do not overll as
this can cause damage to the seals. Check the oil level every 50 hours of operation.
STEP 2:
Remove the manual and hardware pack from the manual canister CC. Attach manual canister CCon
the boom DDusing hex bolt M8 X 16 X 1.25mm BB.
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STEP 3:
Attach the 7/8” lock washer DD, 7/8” hex nut CC, draw pin EEto the “A” frame FF. For the model
650 digger, Category 1 tractors (lift arm spacing of 26”), use the pins in the inward position. For
Category 2 tractors (lift arm spacing of 32”), the pins should point outwards as shown in the photo
below.
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ASSEMBLY INSTRUCTIONS
PAGE 9
STEP 4:
Connect the “A” frame assembly CC to the tractor’s 3-point lift arms. Attach the boom assembly BB
to the tractor. Attach the “A” frame CC to the boom BBusing the pin DDand lynch pin EE. The size
of your tractor and auger will determine which hole will work best for the angle adjustment. After
complete assembly the "A" frame to boom location might need to be changed, with the tractor lift
arms raised the auger should be no more than 6" o the ground.
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STEP 5:
Attach the gear box BBto the boom using the boom pin CC and secure with cotter pins DD

ASSEMBLY INSTRUCTIONS
PAGE 10
STEP 6:
Attach the driveline BBto the gear box input shaft using the hex bolt 3/8” x 3" G5 CC, 3/8” lock
washer DDand 3/8”-16 hex nut EE. Insert the ¼”x 3/8” set screw in the hole on the yoke that aligns
with the 3/16” groove on the gear box input shaft. Tighten loosely.
Attach the tractor end of the driveline BBto the tractor PTO shaft. Retract the yellow zinc plated
outer collar and slip it on the splined PTO shaft of the tractor. Release the collar when it is securely
in place on the shaft. The driveline has 1-3/8x6 spline for tractor end. PTO adaptors or extenders
are not recommended.
ATTENTION:
THE HEX BOLT 3/8"-16 X 3" G5 CC PROVIDES SHEAR PROTECTION. USE A GRADE 2 OR
GRADE 5 BOLT ONLY TO AVOID DAMAGE TO THE GEAR BOX OR AUGER.
IMPORTANT:
The universal joint should be greased with a quality grade chassis lube approximately every
6 months. At the beginning of each season grease the sliding driveshaft members with a
moly grease. All diggers are equipped with quick-detach universal joints on the power-take-
o end for a 1-3/8 in. splined shaft.

ASSEMBLY INSTRUCTIONS
PAGE 11
STEP 7:
Attach the auger BB to the output shaft on the bottom of the gear box using the hex bolts 1/2"-
13x3" EE, ½” lock washer DD and ½” hex nut CC. Tighten the hardware.
NOTE: See the images below for reference in assembling the digger and mounting it to the
tractor.
NOTE: If the 7/8 in. diameter draw pins in the “A” frame are too small for the holes in the lift
arms a Cat 1 to Cat 2 draw pin can be substituted or bushings should be used to obtain the
proper t.

OPERATING INSTRUCTIONS
PAGE 12
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:
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 the power take o and start digging at a slow speed lowering the auger slowly as the hole
is dug.
STEP 3:
Increase the speed as the auger goes deeper into the ground. The type of soil will determine the
proper auger speed. A very hard or compacted soil may require operation at varying speeds to be
the most ecient in digging.
NEVER ALLOW THE TRACTOR’S ENGINE TO RUN WHILE MANUALLY DISLODGING AN
OBSTACLE.
If a rock or other obstacle is encountered that is too large for the auger to displace the post hole
digger will begin to vibrate. Slowly withdraw the auger from the hole completely. Turn o the
tractor’s power and remove the obstacle manually. Slowly lower the auger into the hole and engage
the power to complete digging the hole.
STEP 4:
After the desired hole depth has been reached, spin the auger at a high speed to clear the hole of
soil. Reduce the speed before withdrawing the auger from the hole.
STEP 5:
Disengage the power take o after withdrawing the auger from the hole and move to the next
desired hole location.

PAGE 13
MAINTENANCE
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 ll to oil
level plug. Always use the same replacement lubricant type.
Universal joints should be greased with chassis lube once a week during operating season. Grease
the sliding drive shaft members with moly grease at the beginning of each season.
To remove the auger from the gear box output shaft, remove the two 1/2 in. x 3 in. hex cap screws.
To remove the drive shaft from the gear box input shaft, remove the shear pin bolt and 1/4 in. set
screw.

POST HOLE DIGGER PARTS LIST
PAGE 14
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MODEL 1500 POST HOLE DIGGER
ITEM # P/N DESCRIPTION QTY
1 27-023 SERIES 4 DRIVELINE 1
2 95462A545 7/8”- 14 HEX NUT 2
3 91102A037 7/8” LOCK WASHER 2
4 43-027 7/8” DRAW PIN 2
5 24-0358 MODEL 1500 A-FRAME 1
6 24-0029 A-FRAME PIN 1
7 43-047 7/16” LYNCH PIN 1
8 N/A AUGER (VARIOUS SIZES) 1
9 95462A033 1/2”-13 HEX NUT 2
10 91102A770 1/2”-13 LOCK WASHER 2
11 91247A724 1/2”-13 X 3” G5 BOLT 2
12 98338A230 5/32” X 1-1/2” COTTER PIN 2
13 24-0028 BOOM PIN 1
14 24-0360 75 HP GEARBOX WITH GUARDS 1
15 95462A031 3/8” -16 HEX NUT 1
16 91102A760 3/8” LOCK WASHER 1
17 91247A636 3/8”-16 X 3” BOLT, G5 1
18 24-0357 MODEL 1500 BOOM 1
19 24-0014 MANUAL CANISTER 1
20 92865A581 BOLT, 5/16”-18 X 3/4”, SHCS 3

POST HOLE DIGGER PARTS LIST
PAGE 15
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MODEL 1000 POST HOLE DIGGER
ITEM # P/N DESCRIPTION QTY
1 27-023 SERIES 4 DRIVELINE 1
2 95462A545 7/8”- 14 HEX NUT 2
3 91102A037 7/8” LOCK WASHER 2
4 43-027 7/8” DRAW PIN 2
5 24-0356 MODEL 1000 A-FRAME 1
6 24-0029 A-FRAME PIN 1
7 43-047 7/16” LYNCH PIN 1
8 N/A AUGER (VARIOUS SIZES) 1
9 95462A033 1/2”-13 HEX NUT 2
10 91102A770 1/2”-13 LOCK WASHER 2
11 91247A724 1/2”-13 X 3” G5 BOLT 2
12 98338A230 5/32” X 1-1/2” COTTER PIN 2
13 24-0028 BOOM PIN 1
14 24-0359 45HP GEARBOX WITH GUARDS 1
15 95462A031 3/8” -16 HEX NUT 1
16 91102A760 3/8” LOCK WASHER 1
17 91247A636 3/8”-16 X 3” BOLT, G5 1
18 24-0316 MODEL 1000 BOOM 1
19 24-0014 MANUAL CANISTER 1
20 92865A581 BOLT, 5/16”-18 X 3/4”, SHCS 3

POST HOLE DIGGER PARTS LIST
PAGE 16
MODEL 650 POST HOLE DIGGER
ITEM # P/N DESCRIPTION QTY
1 27-024 SERIES 1 DRIVELINE 1
2 95462A545 7/8”- 14 HEX NUT 2
3 91102A037 7/8” LOCK WASHER 2
4 43-027 7/8” DRAW PIN 2
5 24-0370 MODEL 650 A-FRAME 1
6 24-0029 A-FRAME PIN 1
7 43-047 7/16” LYNCH PIN 1
8 N/A AUGER (VARIOUS SIZES) 1
9 95462A033 1/2”-13 HEX NUT 2
10 91102A770 1/2”-13 LOCK WASHER 2
11 91247A724 1/2”-13 X 3” G5 BOLT 2
12 98338A230 5/32” X 1-1/2” COTTER PIN 2
13 24-0028 BOOM PIN 1
14 24-0359 45 HP GEARBOX WITH GUARDS 1
15 95462A031 3/8” -16 HEX NUT 1
16 91102A760 3/8” LOCK WASHER 1
17 91247A636 3/8”-16 X 3” BOLT, G5 1
18 24-0371 MODEL 650 BOOM 1
19 24-0014 MANUAL CANISTER 1
20 92865A581 BOLT, 5/16”-18 X 3/4”, SHCS 3
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POST HOLE DIGGER PARTS LIST
PAGE 17
MODEL 400 POST HOLE DIGGER
ITEM # P/N DESCRIPTION QTY
1 27-024 SERIES 1 DRIVELINE 1
2 95462A545 7/8”- 14 HEX NUT 2
3 91102A037 7/8” LOCK WASHER 2
4 43-027 7/8” DRAW PIN 2
5 24-0016 MODEL 400 A-FRAME 1
6 24-0029 A-FRAME PIN 1
7 43-047 7/16” LYNCH PIN 1
8 N/A COMPACT AUGER (VARIOUS SIZES) 1
9 95462A033 1/2”-13 HEX NUT 2
10 91102A770 1/2”-13 LOCK WASHER 2
11 91247A724 1/2”-13 X 3” G5 BOLT 2
12 98338A230 5/32” X 1-1/2” COTTER PIN 2
13 24-0028 BOOM PIN 1
14 24-0359 45 HP GEARBOX WITH GUARDS 1
15 95462A031 3/8” -16 HEX NUT 1
16 91102A760 3/8” LOCK WASHER 1
17 91247A636 3/8”-16 X 3” BOLT, G5 1
18 24-0015 MODEL 400 BOOM 1
19 24-0014 MANUAL CANISTER 1
20 92865A581 BOLT, 5/16”-18 X 3/4”, SHCS 3
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WARRANTY
PAGE 18
IMPORTANT NOTICE
We, the manufacturer, reserve the right to change the product and/ or specications in this manual without
notication. The manual is for information use 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
303-278-0664 for the location of the nearest service center.
Record the information below for future reference.
Model No.
Serial No. (found on boom)
Date of Purchase
Place of Purchase
SPECIFICATIONS
SKU/Part No. 24-0361 24-0362 24-0318 24-0337
Model # 400 650 1000 1500
Description Compact Standard Duty Light/Heavy Duty Heavy Duty
Tractor Category Subcompact and CAT 0 CAT 1 and CAT 2 CAT 1 and CAT 2 CAT 1 and CAT 2
Gear Box 2.9:1 Ratio, 2" output shaft 2.9:1 Ratio, 2" output 2.9:1 Ratio, 2" output 3:1 Ratio, 2" output shaft
Driveline Series 1, ts 6-spine PTO Series 1, ts 6-spine PTO Series 4, ts 6-spine PTO Series 4, ts 6-spine
Boom 2-7/8" OD tubing 2-7/8" OD tubing 2-7/8" OD tubing 3-1/2" OD Tubing
A-Frame 2-7/8" OD tubing 2-7/8" OD tubing 2-7/8" OD tubing 3-1/16" OD tubing
Safety Shields On driveline, gear box "U" joint and gear box output shaft
Shear Bolt Replaceable
Augers 6" diameter compact auger 6" diameter auger 6" diameter auger 6" diameter auger
9" diameter compact auger 9" diameter auger 9" diameter auger 9" diameter auger
12" diameter compact auger 12" diameter auger 12" diameter auger 12" diameter auger
- - 18" diameter auger 18" diameter auger
- - 24" diameter auger 24" diameter auger
Warranty 1 Year Limited Warranty 1 Year Limited Warranty 1 Year Limited Warranty 1 Year Limited Warranty
For Service or Questions:
Call 303-278-0664

PAGE 19
REGISTRATION
Acceptance of responsibility:
I (purchaser) have read the Operation Manual and Limited Warranty or someone has read and
explained all instructions to me. I understand this warranty does not cover any labor and that all
disputes will be settled by binding arbitration. Warranty void if any attempt to repair or replace
defective parts has been made by unauthorized personnel. The mark next to each item below
conrms my acceptance of responsibility for the use and maintenance of this post hole digger. I
understand that I alone am responsible for the proper maintenance, care and safe operation of this
post hole digger.
Received, read and understand the Operation Manual
Understand the safety warnings
Specications accepted
Operations understood
Maintenance requirements understood
I (purchaser) understand that persons who have not read and understand the operations manual
should not be allowed to use the machinery. Children should not operate or be near the equipment.
Anyone operating the post hole digger must have read the safety and operations manual.
Is this post hole digger used in a business:
No: ______________ Yes, business type: ______________
Owner / Purchaser Signature: ________________________________________________________
The warranty may be refused if the registration is not legible, completed and signed. It is the
responsibility of the purchaser to assure that the registration form is received.
Agknx product warranty oers one year warranty against workmanship.
The warranty gives the consumer certain and specic rights which may vary from state to state.
Warranty does not cover normal wear, misuse, neglect, abuse, improper maintenance, overload
beyond rated capacity, accidents, cosmetic defects, consumables, non-authorized replacement
parts or accessories, operation with inadequate supply of gear box oil, improper uid types or
unauthorized adjustments.

REGISTRATION
WARRANTY VOID IF REGISTRATION IS NOT POST MAKED WITHIN 15 DAYS OF PURCHASE.
Mail to:
AGKNX
15000 West 44th Ave, Suite B
Golden, CO 80403
Serial #: ________________________________________________________________________________
Purchase Date: __________________________________________________________________________
Purchased From: ________________________________________________________________________
Purchaser: _____________________________________________________________________________
Purchaser’s Address: ____________________________________________________________________
City: _________________________ State: _______________________ Zip Code: __________________
Phone:________________________ Email: ___________________________________________________
Attach a copy of receipt or proof of purchase.
Registration may be completed by scanning the Registration pages and emailing them to:
[email protected]
For Service or Questions:
Call 303-278-0664