![background image](http://html.mh-extra.com/html/wallenstein/gx620/gx620_operators-manual_870798021.webp)
21
4.3 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:
A.
After operating for 1/2 hour:
1. Check all nuts, bolts and other fasteners.
Tighten to their specified torque.
2. Check the condition of all hydraulic lines,
hoses and fittings. Replace any that are dam
-
aged or leaking. Re-route those that are rub-
bing, 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 and
have held position.
7.
Lubricate all grease points if required.
B.
After operating for 5 and 10 hours:
1. Repeat steps 1 through 7 of Section A.
2.
Go to the normal servicing and maintenance
schedule as defined in the Maintenance Sec
-
tion.
4.5 PRE-OPERATION CHECK-
LIST
Efficient and safe operation of the Backhoe requires
that each operator reads and understands the
operating procedures and all related safety pre-
cautions outlined in this section. A pre-operation
checklist is provided for the operator. It is impor-
tant for both the personal safety and maintaining
good mechanical condition that this checklist is
followed.
Before operating the machine and each time
thereafter, the following areas should be checked
off:
Pre-Operation Checklist
P
Check that the machine is properly attached to the
tractor. Be sure retainers are used on the mounting
pins and mounting hardware is tightened to their
specified torque.
Check all parts for entangled material. Remove
entangled material.
Lubricate the machine per the schedule outline in
the Maintenance Section.
Check that all boom & dipper pivot points move
freely.
Check that the bucket pivot move freely.
Check that stabilizers move freely.
Check that hydrualic hoses are not rubbing, pinched
or crimped. Re-route as required.
Check for leaks in the hydraulic system. Tighten
leaking fittings, check cylinders. Repair or replace
any damaged components.
Make sure that all guards and shields are in place,
secured and functioning as designed
Check all fasteners and hardware, retorque if
required.
Backhoe
4.4 TRAINING
:
Each operator must be trained in the proper
operating procedures prior to being allowed to
operate the machine.
• Review control location, function and
movement directions.
•
Move the unit to a large open area to al
-
low the operator to become familiar with
control function and machine response.
• When a new operator is familiar and
comfortable with the machine, they can
proceed with the work. Do not allow
untrained operators to use the machine.
They can endanger themselves and oth-
ers or damage property and the machine.