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Operation
7.3 Machine Set-up
CAUTION!
Collision hazard! When operating the boom and
stabilizers during setup, make sure the area is
clear of bystanders. The operator must be safely
seated, and a work / safe zone is clearly defi ned.
Run the engine at low speeds and proceed
cautiously.
1. Position the machine at the work site and set the park
brake.
2. Set the stabilizers down to remove some of the weight from
the tires.
3. On a tractor, lower the front bucket and set the stabilizers to
remove some weight off the tires. Keep the tires in contact
with the ground.
Raising the wheels off the ground reduces stability and digging
depth and causes unnecessary stress on the stabilizers and
backhoe.
Fig. 19 – Center of gravity too high
The wheels must remain in contact with the ground as this
provides the widest stabilizer stance and the lowest centre of
gravity.
Fig. 20 – Stabilizers lowered. Tires in contact with the ground.
4. Remove the main boom swing lock pin.
Stability Hazard for Tractors! Use the front-end
loader and backhoe stabilizers to relieve some
weight off the tractor tires. Using the backhoe
with tires raised off the ground could result in
damage to the tractor or the backhoe subframe.
W068
7.4 Machine Break-in
Although there are no operational restrictions on the backhoe
when used for the first time, it is recommended that the
following mechanical items be checked:
After operating for 1/2 hour–
1. Check all nuts, bolts and other fasteners. Tighten to torque
specification. See page 43.
2. Check the condition of all hydraulic lines, hoses and
fittings. Replace any that are damaged. Re-route those that
are rubbing, pinched or crimped. Tighten any fitting that is
leaking.
3. Check the condition of the teeth on the bucket. Replace any
that are bent, chipped, broken or missing.
4. Check the oil level in the hydraulic reservoir if so equipped.
Add as required.
5. Check the boom, dipper and bucket pivot pins. Be sure all
are anchored securely in position.
6. Check the stabilizer pins are in place.
00957
7. Lubricate all grease points (refer to Maintenance Section for
their location).
8. After operating the machine for 5 and 10-hour periods,
repeat steps 1–7.
00958
30
GE, GX Series
WARNING!
Backhoe
W070
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