Land Pride SA35 - Manual (Page 14)

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Section 2: Operating Procedures
Model SA35 Hydraulic Post Hole Digger 317-093M 6/12/13
Table of Contents
Dual-Angle Teeth
Refer to Figure 2-1 & Figure 2-2:
The Auger is shipped with teeth mounted at 40 degrees
(see Figure 2-1). If you are experiencing difficulty in
penetrating the soil, they can be turned over and
mounted at 50 degrees (see Figure 2-2) for a more
aggressive bite. Be sure to tighten all mounting hardware
to the proper torque when securing teeth to the Auger.
See “Torque Values Chart for Common Bolt Sizes” on
page 20 for torque ratings.
Auger Teeth Mounted at 40 Degrees
Figure 2-1
Auger Teeth Mounted at 50 Degrees
Figure 2-2
Operating Instructions
1. Roll tilt arms to carry the auger low to the ground
while traveling between drilling positions.
2. Position Skid Steer/Tractor on the upside of the hill
when drilling a hole. This will greatly improve its
balance and down force.
3. Experiment with auger speeds before digging.
Increase Skid Steer/Tractor engine speed to
increase auger speed and decrease engine speed to
reduce auger speed. Run at higher auger speeds
when digging in soft and/or sandy soils and at lower
auger speeds when digging in hard, rocky, or frozen
soils. Normal auger speed is 85 to 100 rpm. Never
exceed 110 rpm or the equipment can become
damaged.
4. Maker sure auger rotation is stopped and then lower
auger point to the ground.
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IMPORTANT: Operate one loader function at a time.
Operating two or more functions at a time (loader
arms, tilt arms, engine speed and loader
positioning) can lead to damaged equipment.
5. With engine running at a slow speed, start auger
turning clockwise. Increase engine speed to desired
digging speed.
6. Periodically adjust the machine’s position to keep the
auger and hole vertical. Be careful not to damage
gearbox or auger.
7. Apply down pressure to assist penetration into the
ground. If auger speed slows or stops, back off down
pressure. Excessive down pressure can stall the
auger.
8. After penetrating the ground approximately 24", stop
auger rotation and raise it up to remove soil and
debris from the hole. Lower auger back down to
continue digging. Dig another 24" and again raise
auger up except this time keep auger turning to
lessen the strain on the equipment. Stop raising
auger within 1 to 2 feet of being out of the hole and
lower it back down to continue digging. Repeat this
procedure until hole is at its final depth.
9. Allow auger to turn several revolutions at final depth.
With auger still turning, raise auger up to within 1 to
2 feet of being out of the hole. Stop auger rotation
and continue to raise auger out of the hole.
10. Roll tilt arms into a low carry position when
transporting from one digging site to the next. Be
careful to watch out for people, obstructions, and
uneven terrain.
IMPORTANT: Avoid side pressure on the auger.
This can damage auger and drive components.
IMPORTANT: Always stop auger from rotating
before raising it out of the hole. This will keep the
auger from wobbling with an unbalanced dirt load.
Do not reverse auger rotation when raising it up. This
will dump soil back into the hole.
IMPORTANT: Stop auger rotation immediately if it
becomes stalled while digging. Some power
machinery have a hydraulic relief valve to protect the
equipment. This valve will open in a stalled situation
and allow oil to bypass the hydraulic motor. Check
your Operator’s Manual to see if your machine is
equipped with a hydraulic relief valve.
IMPORTANT: If auger has screwed itself into the soil
or hits a large obstruction and becomes stalled, then
reverse auger rotation only enough to free it. Once
free, continue normal digging operations by lowering
the auger down slowly. If auger does not penetrate
the obstruction, raise auger out of the hole and
remove obstruction by other means or dig a new
hole nearby.
It is best to leave drilling through hard rock to
premium high pressure drilling equipment or other
rock excavation methods.