Allmand Brothers Allmand 7.5 FT BACKHOE - Manual (Page 8)

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CAUTION: To avoid possible injury,
observe the following safety rules
BEFORE OPERATING backhoe.
ƒ Be sure area is clear of underground utilities or
other hazards.
ƒ Position a barricade around work area.
ƒ Keep bystanders a safe distance away.
PRE-OPERATION CHECK LIST
This backhoe is designed for safety, durability and
operator convenience. To insure satisfactory perfor-
mance complete the following check list and make all
necessary adjustments before initial operation.
1.
All safety shields must be in place.
2. Safety and operation decals must be in place,
undamaged and clean.
3. Hydraulic hookup must be correct and all connec-
tions tight.
4. All hardware which attach backhoe to tractor must
be properly torqued and in place.
5. Tractor must be in proper operating condition.
6. Lubricate backhoe, see “SERVICE”.
7. Controls must operate properly. See “GENERAL
OPERATION”.
8. Cycle all cylinders slowly to purge air from hydrau-
lic system.
OPERATING DIRECTIONS
The terms right, left, front and back shall be from the
position of the operator when seated in the operating
position on the backhoe.
ENGINE SPEED
Speed at which backhoe operates is dependent on
tractor RPM. Use a moderate engine speed to start and
increase it as your experience permits.
CONTROLS
The backhoe has two major control levers, Boom/Swing
and Crowd/Bucket. These controls are located on the
control panel directly ahead of the operator .
The stabilizer control levers are located between the two
major control levers.
BOOM/SWING
Push lever forward, boom moves down, away from
operator. Pull lever back, boom moves up, toward
operator.
Move lever to left, backhoe swings left. Move lever to
right, backhoe swings right.
By moving lever to one of the intermediate positions, boom
can be swung left or right at the same time as it is being
raised or lowered, performing two operations simulta-
neously.
ƒ
Swing left and lower boom by moving control lever
forward and to the left.
ƒ Swing left and raise boom by moving control lever back
and to the left.
ƒ Swing right and lower boom by moving control lever
forward and to the right.
ƒ Swing right and raise boom by moving control lever
back and to the right.
CROWD/BUCKET
ƒ Push lever forward, dipperstick moves away from
operator. Pull lever back, dipperstick moves toward
operator.
ƒ Move lever to left, bucket curls in. Move lever right,
bucket extends out.
ƒ By moving lever to one of the intermediate positions,
dipperstick can be extended or retracted at the same
time as bucket is being loaded or dumped.
ƒ Move dipperstick away and extend bucket by moving
lever forward and to the right.
ƒ Move dipperstick toward operator and curl bucket by
moving lever back and to the left.
ƒ Move dipperstick away and extend (dump) bucket by
moving lever forward and to the right.
ƒ Move dipperstick toward operator and extend bucket
by moving lever back and to the right.
The two operations of the boom and swing lever combined
with the two operations performed by bucket and
dipperstick control lever provide four simultaneous opera-
tions from the two levers. Oil flow will go to operation which
requires the least pressure. The ability to feather valve
spools and balance pressure comes with experience result-
ing in reduced cycle times.
OPERATION