9
Section 1: Assembly & Set-up
AP-SA20 Hydraulic Post Hole Digger 317-215MK
4/3/19
Skid Steer/Tractor Requirements
This Post Hole Digger is designed to attach to skid steers,
track loaders, or tractor front-end loaders with a skid
steer type quick attach hitch that meets SAE with the
following requirements:
Hydraulic pressure rating . . . . . . . . . 1,500 - 3,500 psi
Hydraulic flow rate
Low flow motor . . . . . . . . . . . . . . . . . . . . 6-15 gpm
Medium flow motor . . . . . . . . . . . . . . . . . 10-20 gpm
High flow motor . . . . . . . . . . . . . . . . . . . . 15-30 gpm
Hydraulic Connections . . . . . . . . . . . . 1 - Duplex outlet
Power Machine Weight
Machine horsepower and weight must be capable of
controlling the Post Hole Digger under all operating
conditions. Light weight machines must not be used.
WARNING
!
To avoid serious injury or death:
Lightweight power machines may need weight added to the
rear to maintain steering control and prevent forward tipping
or side tipping caused by a heavy front load or lifting an auger
stuck in the ground. Consult your power machine Operator’s
Manual to determine proper weight requirements and
maximum weight limitations.
Torque Requirements
Refer to
“Torque Values Chart”
on page 31 to
determine correct torque values for common bolts.
Power Machine Shutdown Procedure
The following are basic power machine shutdown
procedures. Follow these procedures and any additional
shutdown procedures provided in your power machine
Operator’s Manual before leaving the operator’s seat.
1.
Reduce engine speed and shut-off all power to the
attachment.
2.
Park on solid, level ground and lower attachment until
it is flat on the ground or on non-concrete support
blocks.
3.
If shutting down a tractor, put tractor in park or set
park brake.
4.
Turn off engine, and remove switch key to prevent
unauthorized starting.
5.
Relieve all hydraulic pressures.
6.
If included, raise seat bar and move controls until
both lock.
7.
Wait for all components to come to a complete stop
before leaving the operator’s seat.
8.
Use steps, grab-handles, and anti-slip surfaces
when stepping on and off the power machine.
Section 1: Assembly & Set-up
Gearbox Rest Assembly
Figure 1-1
Optional Skid/Loader Plate Assembly
The motor/gearbox assembly can be mounted centered
on auger hitch (#1) or mounted offset 18" to the right. Two
choices are offered to allow accessing hard-to-reach
places and to provide best line-of-sight.
Gearbox Rest Assembly
Refer to Figure 1-1:
The auger hitch (#1) is shipped from the factory with
gearbox support rest (#2) mounted backwards (not
shown) in center mount “A”. Determine which mount
(Center Mount “A” or Offset Mount “B”) will be used and
reattach support rest facing forward in that mount.
1.
Remove nuts (#4), bolts (#3), and gearbox support
rest (#2).
2.
Turn gearbox support rest (#2) around and reattach it
in mount “A” or “B” with removed 3/8"-16 x 4 1/4" GR5
bolts (#3) and hex flange locknuts (#4) as shown.
3.
Tighten hex flange locknuts (#4) to the correct torque.
37748
