8 | EA08 User Manual
What is the EA08 Hydraulic Earth Auger?
EA08 is a hand held tool for boring holes in the ground. It is operated by two
operators, but can be used by one operator using the supplied torque tube
and an appropriate anchor.
Specifications
Pressure
2000 PSI (140 BAR)
Flow
4-9 GPM (15-34 LPM)
Hydraulic Circuit Type
Open Center
Max. Relief Pressure
2100 PSI (145 BAR)
Recommended Back
Pressure
250 PSI (17 BAR) - Can be used with higher
back pressures with reduced seal life.
Couplers
1/2 Inch NPT
Min. Hose Pressure Rating
2500 PSI (172 BAR)
Max. Hydraulic Oil
Temperature
140°F (60°C)
HTMA/EHTMA Category
Type I & II, Category C & D
Drive
1 3/8 Inch Female Hex Socket
RPM
165 @ 8 GPM (30 LPM)
Torque
250 Ft. Lbs. (339 Nm)
Tool Weight
47 Lbs. (21 Kg)
Tool Size
48 Inches x 48 Inches x 13 Inches
Sound & Vibration Declaration
Measured A-Weighted sound power
level
96.5 dBA
Measured A-Weighted Sound Pressure
88.6 dBA
Values determined according to noise test code given in ISO 15744, 11203
and 3744.
Declared vibration emission value in accordance with EN ISO 28927-2.
Declared Vibration Emission Value
(Trigger Handle):
12 m/sec²
Declared Vibration Emission Value
(Assist Handle):
9.7 m/sec²
Uncertainty
3 m/sec²
Parts of a EA08 - Detail A
1
Auger Warning Decal
2
Tool Name Tag
3
Handles
4
Drive Hex & Bit Retainer
5
Serial Number & Year of Manufacture
6
Torque Tube
7
Male Coupler
8
Female Coupler
9
Trigger
10
Composite Safety Decal
11
CE Decal
12
Circuit Type “D” Decal
13
Circuit Type “C” Decal
14
Sound Power Decal
Tool Setup
Do not install or change tool accessories while the
hydraulic power source is connected. Accidental
engagement of the tool can cause serious injury.
Disconnect the hydraulic power source before installing
or changing accessories.
1. Disconnect the tool from the hydraulic power source.
Install Handles and Torque Tube - Detail B
2. Insert one handle onto each of the handle mounting ears.
Note: The trigger handle comes installed from the factory.
3. Thread one cap screw into each handle and torque to 40 Ft. Lbs. (54
Nm).
4. Insert the torque tube pivot into the mounting ear that is angled 45°.
5. Insert the torque tube locking pin. Ensure the locking pin is pushed
through both sides of the mounting ear and is locked in place.
Note: The torque tube reduces reaction forces on the operator. You must use
the torque tube at all times when operating the tool.
Install Bit - Detail C
Never operate the tool unless the inserted bit is
retained. Bit can become a high velocity projectile.
Secure the bit as shown in this manual.
1. Insert the auger bit onto the drive hex.
2. Fit the tool retainer pin through the bit and drive hex.
3. Insert the cotter pin through the end of the tool retainer pin. Ensure it is
secure and the bit is locked in place.
Note: Loose fitting bits and adapters can increase vibration. Use as few
adapters as possible and ensure they fit tightly.
Tool Operation
Connect to a Hydraulic Power Source
1. Using a calibrated flow and pressure gauge, check the output of the
hydraulic power source. Ensure it matches the flow and pressure in
“Specifications” on page 8. Hydraulic fluid must be 50°F or above.
Preheat if necessary.
2. Ensure that the hydraulic power source is equipped with a relief valve
set to open at the maximum relief pressure. See “Specifications” on
page 8.
3. Wipe hose couplers with a clean, lint free cloth.
4. Connect the return hose to the male coupler.
5. Connect the pressure hose to the female coupler.
6. Ensure couplers are undamaged, properly connected and are tight.
7. Power up the hydraulic power source.
Holding the Tool - Detail D
Operators must use the torque tube. Ensure torque
tube is installed and properly anchored. Serious injury
could result from losing control of the tool.
1. Anchor the torque tube to a trailer hitch, ground stake or other solid,
heavy object.
2. If operating with a helper, the helper will grab the handles opposite of
the trigger.
3. The operator will grab the trigger handles.
Note: The operator at holding the trigger handle must asses the risk to the
