AGT INDUSTRIAL AGT-PD680-PZ User manual

PRODUCT MANUAL
AGT-PD680-PZ Skid Steer Post Driver Attachment
Model: AGT-PD680-PZ
This equipment can not be installed, operated or
repaired without reading instructions.
Electricity must be hooked up by certified electrician.
Do not use this equipment beyond its rated capacity.
Missing parts or questions on assembly?
Please contact [email protected]
https://www.agrotkindustrial.com/
[e-mail] https://www.agrotkindustrial.com/

CONTENTS
OPERATING MANUAL
1. Safety Precautions.................................................................................................................03
2. Standard Specifications........................................................................................................ 05
3. Construction & Main Parts................................................................................................. 06
4. Post driver Tools.....................................................................................................................07
5. GENERAL VIEW OF BREAKER INSTALLED TO BASE MACHINE........................ 09
6. Operation................................................................................................................................. 10
7. Repair & Inspection................................................................................................................ 12
8. Inspection & Charging (Back Head)................................................................................... 15
9. Trouble – Shooting Guide...................................................................................................... 17
10. Customer’s Report..............................................................................................................20
11. Exploded Drawings and Past List ................................................................................... 21

1. Safety Precautions
1.1 Safety Precautions
1 ) This manual contains safety, operation, and routine maintenance instructions. It does not
contain service disassembly instructions. If needed, complete service disassembly and assembly
instructions are contained in the manual, which can be ordered from your Hydraulic Attachments
-Post driver hammer authorized and certified dealer.
2) Post driver hammer Operator and maintenance personnel must always comply with the safety
precautions given in this manual and on the decal and tags attached to the Post driver hammer and
the hose.
3 ) These safety precautions are given for your safety. Review them carefully before operating the
Post driver hammer and performing general maintenance or repairs.
4 ) Supervising personnel or the owner operator precautions relating to the specific work area
and local safety regulations. Place the added precautions in the space provided under local safety
regulations.
5) Please read the following warning.
1.2 General Safety Precautions
( 1) The Post driver hammer Series will provide safe and dependable performance of operation in
accordance with the instructions given in this manual. Read and understand this manual and any
decals and tags attached to the Post driver hammer before operation. Failure to do so could result
in personal injury or equipment damage.
a) Operate the Post driver hammer in accordance with all laws and regulations which affect you,
your equipment and the work site.
b) Do not operate the Post driver hammer unless you have read the carrier equipment manual and
thoroughly understand all safety, operation and maintenance instructions.
c) Ensure that all maintenance procedures recommended in this manual are completed before
using the equipment.

d) The operator must not operate the Post driver hammer or the carrier if any people are within the
area where they may be injured by flying debris or movement of the equipment.
e) Know the limits of your equipment.
f) Establish a training program for all operators to ensure safe operation.
g) Do not operate the Post driver hammer unless thoroughly trained or under the sup
ervision of an instructor.
h) Become familiar with the carrier controls before operating the carrier and the Post driver
hammer.
i) While learning to operator the Post driver hammer and carrier, do so at a slow pace. If
necessary, set the carrier mode selector to the slow position.
j) Make sure all controls (levers and pedals) are in the neutral position before starting the carrier.
k) Before leaving the carrier, always lower the boom and ensure the carrier is stable. Never be the
machine with the engine running. Always engage the parking brake.
l) Stop the engine before attempting to make any repairs, adjustments or servicing to either the
carrier or the Post driver hammer.
m) Do not operate the Post driver hammer at oil temperatures above 175˚ F/80˚C. Operation at
higher temperatures can damage to the internal components of the Post driver hammer and
back-hoe/ excavator and will result in reduced Post driver hammer performance.
n) Do not operate a damaged, leaking, improperly adjusted, or incompletely assembled Post
driver hammer.
o) Do not modify this Post driver hammer in any manner.
p) To avoid personal injury or equipment damage, all Post driver hammer repairs, maintenance
and service must only be performed by authorized and properly trained personnel.
q) If you do not understand how to safely operate your Post driver hammer, contact an authorized
dealer for assistance.
r) Keep this manual with the Post driver hammer.
s) Do not operate this equipment if you are taking medication which may affect your mental
judgment or physical performance.
t) Do not operate the equipment if you are under the influence of drugs or alcohol.
u) Remove the Post driver hammer from the carrier during transport.

2. Standard Specifications
2.1 Standard Specifications
Model
Unit
AGT-PD680-PZ
Operating weight
kg
475
Working Flow Rate
liter /min
40-70
Oil Relief Pressure
kg/cm2
170
Working Pressure
kg/cm2
1 10- 140
Impact rate
bpm
500-900
Chisel Diameter
mm
¢68-200
Hose Diameter
inch
1/2
Back head pressure
kg/cm2
16
•The above specifications are subject to change without prior notice for the quality

3. Construction & Main Parts
3.1 Inner Valve Type
Through bolt
Front head, cylinder and back head of Post driver hammer body are tightly fixed with four through
bolts.
Back head
This contains the cushion chamber charged with nitrogen( N2 ) gas that compresses during
upward strokes of the piston, and serves to provide maximum absorption of piston recoil, efficiency
storing this energy for the next blow.
Valve
Cylinder control valve is built in the valve housing and controls piston reciprocation.
Cylinder
The cylinder is the heart of the Post driver hammer containing hydraulic circuit for piston
reciprocation.
Piston
Kinetic energy of the piston is converted into hammering energy after hitting the tool. T he
hammering energy transmitted to the tool breaks rocks.
Front head
The front head supports the whole Post driver hammer. Upper bushing prevents shock from the tool
Driver chisel/tool
This transfers piston impact power to the objects.

4. Post driver Tools
4.1 Tool Replacement
1) Remove the stop pin and the tool
pin with a 330mm-long steel
bar.When reassembling, align
the groove in the tool and
the tool pin hole and insert the tool pins.
2) Reverse disassembly procedures to
install a replacement too.
- Before installing a new tool, check each part for
wear, breakage, scores, etc.
- Remove burrs and swellings on each tool pin,
apply a coat of grease to the movable areas
of the tool pin and the tool and finally
install the tool.
- Excessively deformed the tool pins will
make replacement of the tool difficult. The tool pins
must be checked every 100 to 150 hours of operation.
If the replacement tool is not a genuine part, we do not
guarantee the performance of other parts of the Post driver hammer.
Ensure that the tool shank is well lubricated before inserting it into the tool holder.
Keep tools well- greased and sheltered from the weather when not in use.
A rusty tool is more likely to suffer fatigue failure.
The standard inner diameter of the bottom portion of the driver chisel is 200mm.
Tool Pin
Stop Pin

4.2 Greasing
1) Manual Greasing System
Apply grease to grease nipple on front head every 3 hours.
Adapt grease interval and amounts to tool wear rates and working conditions.
NOTICE
Tool shank must be well lubricated before installed in front
head.
While greasing, hydraulic breaker must be upright
against the tool. To ensure that grease will penetrate
between tool and inner bush.
Recommended Lubricant Greases
MAKER
GREASE
Esso
Beacon Q2
Shell
Retinax AM
Mobil 1
Mobil 1 Grease special
1) The Post driver hammer must be in a vertical position to grease, with
enough down-pressure to push the tool up inside thehousing.
2) Grease until clean grease oozes out around the tool and retainer pins.
3) Grease the Post driver hammer after every two hours of continuous use,
or when the tool appears shiny where it rides inside the front head.
○
STANDING UP
▲CAUTION!
Grease often. Failure to lubricate regularly reduces the life of the tool, bushings, and
front head. If the tool becomes dry and shiny during the shift, apply additional grease.
×
DOWN

5.

6. Operation
6.1 Operation method
1. Pre-drill a pilot hole if the soil conditions are rocky, frozen, or too difficult to simply
drive the post into the ground.
2 . Requires another person to position the pile. This person will set the pile at the desired
location and grasp the pile securely.
3. After the pile is in position, let the Driver onto the top of the pile, ensuring the pile is inside of the
bottom portion
of the Driver, and continue lowering the driver until the weight of the Driver is
supported by the pile. After the pile is in position, the person who grasp the pile
must leave vehicle as soon as possible. Don' t allow anyone stand under the
attachments.
4. Move the vehicle slowly left, right, forward, or backward as needed until the pile is vertical to the
ground.
5 . The loader arms should be lowered as the pile is driven into the ground.
6. Drive the pile to the desired depth. Raise the Driver and move on to the next pile.
6.2 Operation Precautions
1) Stop operation as soon as hoses vibrate excessively.
Excessive vibrati on of hig h an d low pressure hoses of the br eaker ca l ls for
an instant disass emb ly an d repair .
Contact the near est service stat ion.
For ca u tion ’s sake, chec k oil le akage at the bank-head.
2) Avoid all blank hammering.
Continuous bla n k ha mmering wi ll not only damage fr o nt he a d and loosen
and break bolts ,
but also adversely affec t ba s e machi ne.
Blank hamm e ring occurs when proper pos ition of the Tool is not ap p lied to
the Po st driv er hammer or the Tool is us e d as a lever. (Sound changes
during blank hammering.)

3) Operate the Post driver hammer at proper engine speed.
Driving the pil e at the specified engin e spe e d .
Raising en g in e spe ed mo r e than nec e ssary does not strengthen the fo r c e but
increase oil temperature to the detriment of the pistons and the valv e.
4) Do not allow the Post driver hammer to fall to drive the pile.
Droppin g the Post driver hammer onto the pile will app ly excess ive force to
the Po st driv er hammer or the base machine , causing damage to many parts
of the Po st driv e r hamm e r and the base ma chine.
Let the driver press the pile to drive it into the ground.
5) Do not lift things with the Post driver hammer.
Lifting materials by hanging wire in the bracket or the Tool not only causes damage to
the Post driver hammer but also is very dangerous when operating.
6) Warm up base machine engine Prior to Operation
Especially in winter, the base machine engine should be warmed up for five to ten minutes
(about oil temperature 30C~40C/80℉~ 105℉) before Post driver hammer operation.
Follow the Instruction Book for the Base Machine for warming-up of the engine.
7) Do not touch the Tool during post driver hammer operation.
During Post driver hammer operation, the Post driver hammer parts can reach high temperatures.
8) When operating the Post driver hammer you must use the ear, eye
and breathing
protection.
9) Greasing danger
With the Post driver hammer mounted on the machine, apply down pressure on the Driver Tool.
And fill cavity with the recommended grease through the marked grease nipple.
10) Always wear the eye protection when removing the stop pin.
Remove the stop pin by doing it in and out with a punch and hammer.

7. Repair & inspection
7.1 Periodic Maintenance (Every 100 hours)
1) Remove the tool and all grease from the bushing
Do not use a pressure washer, steam or solvents as they damage the seals.
Chuck for chips or cracks inside the housing and on the bushing surfaces.
Cracks and chips could indicate that :
①Lubrication so insufficient
②Grease type is not appropriate
③Blank hammering and side loading is occurring and hammer is being operated
improperly.
2) Check wear on Tool Pin
Examine the shoulders and side surface.
If they are worn or deformed, rotate or replace as required.
3) Check wear on chisel holder bushing
Replace tool, bushing or both where the combined wear exceeds 5mm.
Some bushings are grooved to provide even grease distribution.
Replace the bushings when the grooves are worn through.
Excess bushing wear causes tool misalignment to the piston, causing premature Post
driver hammer failure.
4) Replace damaged or worn parts
Then wipe all components clean, including the lubrication port.
Hand grease the tool shank and inside the chuck bushings before placing it back into
the hammer.

7.2 Daily Post driver hammer inspection
Before starting operation, be sure to inspect the Post driver hammer referring to
the following table.
Inspection Item
Inspection Point
Remedy
Looseness, missing and
damage bolts and nuts
Through bolts.Bracket mounting
bolts.
Check looseness.
Retighten securely.
Loose of hose fittings,visible
damage to hose and oil leakage
Hydraulic popes for the post driver.
Oil hoses.
Retighten securely.
Replace seriously damaged
parts.
Abnormal oil leakage
Connections of Back head and
cylinder.
Clearance between front head &
Tool.
Consult with local service station
for further inspection.
Abnormal wear and
cracks on tool
Tool
Defo rmed, burred and worn out
tool should be repaired.
Excessively worn too needs to
be replaced.
Greasing
Grease at start and every 2 or
3 hours using the head grease
pump.
Pumping: 5~ 10 times (Greasing
position and method shown at
left)
Grease the front head
Level and contamination
of hydraulic oil
Conditions of the hydraulic oil
Contamination of hydraulic oil
varies with operating conditions,
but oil color tells the level of
contamination criteria for judging
contamination is specifically set
by post driver
Missing the rubber plugs
and the snap rings
Rubber Plugs
Snap Rings
A seriously damaged one must
be replaced.

7.3 Regular Post driver hammer inspection &
Maintenance
Regular inspection is essential for keeping the post driver hammer operating in the
best condition. Consult with the service station for regular inspection and
maintenance.
Customers are recommended to contact the local dealer for inspection within six
months after delivery.
7.4 Replacement of the Driver Tool
The Tool is deformed by burrs occurring after long-term use. When a Tool tip is worn
out,
The Tool is liable to slip. Then, sharpen the Tool tip. Grinding the Tool tip many
times to sharpen the edge, but it will make the heat-treated hardened with a new Tool.
If the gap between the Tool and the Tool bush becomes large, the piston will fail
exactly to hit the upper part of the Tool, resulting in damage. When the gap is found
to be over 9mm, replace the Tool bush together with the Tool.
■ Change Timing of the Tool Bush (mm)
Model
Wear Limit(mm)
TMG-PD700S
4

8. Inspection and Charging
Nitrogen (N2) Gas at the Back-Head
8.1 CHARGING OF N2 GAS INTO BACK HEAD

8.2 Inspection of N2-Gas in the Back-Head
1 ) Make sure that the cap and the valve of the gas charging kit are fully tightened. Screw the
gas charging kit into the charging valve of the Back- Head after removing the plug.
2 ) At this time the handle must be short to prevent the gas from coming out.
3) Push the handle into the charging valve fully, so the gas pressure inside the Back-Head is
indicated on the pressure gauge.
4 ) If the gas pressure is normal, unscrew the gas charging kit after discharging gas inside the
gas charging kit. Reinsert the plug to the Post driver hammer.
5) If the gas pressure is higher or lower, charge it as described below.
■Charging of N2-Gas into the Back-Head
1) Connect the charging hose to N2- gas cylinder after screwing the bomb adapter onto adapter
nut and installing than to the N2- gas cylinder.
2) Connect the gas charging kit to the charging hose after unscrewing the cap on the gas
charging kit.
3 ) Install the gas charging kit to the charging valve of the Back-Head. At this time the handle of
the gas charging kit must be up position to prevent the gas from coming out.
4 ) Push the handle of the gas charging kit fully and turn the handle of the N2- gas cylinder
counter clockwise gradually to charge the Back- Head.
5 ) When the gas pressure exceeds 10 % higher then the specified pressure, close the N2 - gas
cylinder by turning the handle clockwise.
6) Leave the handle of gas charging kit up. Generated pressure makes, it return back to original
position naturally.
7 ) Remove the charging hose from the N2- gas cylinder and the gas charging kit, and the screw
the cap onto the gas charging kit.
8) Push the handle of the gas charging kit fully, and the gas pressure inside the Back-Head is
indicated on the pressure gauge. When the pressure is higher, discharge a small amount of gas
from the Back-Head repeatedly opening and closing the valve and then gas pressure falls to the
specified pressure.
9 ) When the gas pressure reaches to the specified pressure, close the valve and release the
handle.
1 0) Open the valve completely and discharge gas inside the gas charging kit. Remove the gas
charging kit from the charging valve of the Back- Head and install the plug to the charging
valve.

9 TROUBLESHOOTING GUIDE
9.1 Problems in operation
If the Post driver hammer does not work or blow frequency and blow get
worse, check following troubleshooting. And then inspect according to the
following order.
Symptom
Cause
Required action
No blow out
1.Excessive back head gas pressure
2 . Stop valve ( s) closed
3 . Lack o f hydraulic oil
4 . Wrong adjustment of pressure
reducing valve
5. Faulty hydraulic hose connection
6. Oil back head infection
1 . Re- adjust nitrogen gas
pressure
2 . Open Stop Valve
3 . Fill hydraulic oil
4 . Re- adjustment valve
5 . Tighten or replace
6.Replace back head O-Ring, Or
cylinder bush stop seal
Low impact power
1. Line leakage or blockage
2. Clogged tank return line filter 3.Lack of
hydraulic oil
4. Hydraulic oil contamination, or heat
deterioration
5 . Poor main pump performance
6 . Back head nitrogen gas low
7.Low flow rate by mis-adjustment of
flow control pressure reduction valve
8.Tool out of range for blowing
position
1.check lines
2.Wash fitter, or replace
3. Fill hydraulic oil
4. Replace hydraulic oil, rinse tand
and release oil inside lines
5.Contact authorized service shop
6.Refill nitrogen gas
7. Re-adjust reduction valve
8.Rush down tool by excavator
Irregular impact
1Low accumulator gas pressure, of bad
accumulator
2. Bad piston or valve sliding surface
3.Piston moves down/up to blank blow
1.Refill Nitrogen gas
2.Call an authorized service man.
3.Rush down tool by excavator
operation
Bad tool movement
1 . Tool diameter incorrect
2. Tool and pin jammed from tool retainer
3.Jammed lower bush and tool
4.Deformed tool and piston contact area
1. Replace tool with genuine
replacement parts
2 . Smoothen rough surface of tool
3 . Smoothen rough surface of
lower bush interior
4 . Replace tool
Oil leakage
between front
head and tool
1 . Cylinder seal worn
1 . Replace seal
Gas leakage
1 . O- ring damage in related parts
1 . Replace relevant o- ring

9.2 Gas Leakage

9.3 Oil Leakage
Even if oil is leaking, there is no use to replacing parts at all times
check the following points listed in the chart below.
The user can check the (☞) marked points before calling dealer.

10. CUSTOMERS’ REPORT
10.1 Delivery and Installation Card
This is report is for checking that Post driver hammer is correctly
delivered and equipped on machine Distributor should correctly draw up this.
This is report must be drawn up in typewritten and Informed within 7 days after the
date When delivered Post driver hammer to customer.
■ Machine
Maker / Model : Manufacturer and model name of the carrier
Operating Weight
Operating Hours : Actual operating hours at time or Date delivered out Post
driver hammer
Oil Filter – If there is mark “Y” , if not mark “N”
If there is not it or it’s condition is bad, Post driver hammer should be troubled
easily.
Therefore please recommend customer to install it in change new one.
Others : Performance or Condition of Engine and Hydraulic pump.
■ Post driver hammer
● Model & Serial No : Model name and Serial No. of the Post driver hammer
● Operating Pressure : Actual operating pressure
● Relief set Pressure : Actual relief valve setting pressure for Post driver hammer
● Operating Oil Flow : Actual required operating flow
● Gas Pressure : Actual pressure in accumulator or gas chamber