How To Check The Hydraulic System; Maintenance; General; Daily - Atlas Copco LP 9-20 P Instrucciones De Seguridad Y De Funcionamiento

LP 9-20 P
How to check the hydraulic
system
To set or check the hydraulic oil flow and the
pressure relief valve we recommend using
the Atlas Copco test equipment or similar test
equipment.
0-250 bar (0-3600 psi)
5-46 l.p.m. (1-12 US gal/min)
Part Number 3371 8011 54
1. Stop the engine (see "Stopping the engine").
2. Connect the test equipment to the power
pack. Male (B) to the return connector and
female (A) to the feed connector on the
power pack. Make sure that the loading valve
of the test equipment is fully open.
3. Start the engine (see "Starting the engine").
4. Move the by-pass valve on the power pack to
the ON position.
5. Turn the loading valve, until the gauge shows
approx. 70 bar (1000 psi) and allow the
power pack to warm up for 3-4 minutes.
6. Slowly close the loading valve, until the
pressure gauge shows a pressure of 100 bar
(1400 psi).
7. Check that the flow is according to the flow
rate in the technical specifications.
Note! The inaccuracy of the reading on the flow
meter is ±2 l.p.m. (±0.5 US gal/min). If the
performance is not in accordance with the
technical specifications for the power pack,
please see "Troubleshooting".
© 2008 Atlas Copco Construction Tools AB
www.CrowderSupply.com • Toll Free: 888-883-5144
| |
No. 3392 5054 83 e 2008-06-30
Safety and operating instructions

Maintenance

General

Regular maintenance is a fundamental prerequisite
for the machine to continue to be safe and efficient.
Do not use a machine that is due for regular
service. Rectify any defects found during regular
maintenance before clearing the machine for use.
Note! Maintenance must only be done by suitably
qualified and competent persons. Before
doing any maintenance, make sure that the
machine is safe and correctly sited on the
ground.

Daily

► Clean and inspect the machine.
► Check fuel lines, tank, fuel cap and fittings for
cracks or leaks. Replace if necessary.
► Check for damage.
► Check hydraulic oil level.
► Check engine oil level.
► Check hydraulic couplings.
► Check hydraulic hoses.
► Check hydraulic oil filter.
Note! When the filter gauge needle remains in
the red sector (while the engine is running
idle and the oil is service warm), the filter
must be replaced. The old filter is removed
by turning it clockwise (use a filter strap
wrench if necessary). Tilting the power pack
rearwards will minimise oil spilling. Before
mounting the new filter, it is recommended
to grease the surface of the seal with oil in
order to ease correct tightening of the filter.
Note! Check tightness of nuts, bolts, screws and
hose fittings after the first days of operation
and thereafter in accordance with the
maintenance schedule.
Note! The engine oil should be replaced after the
first 8 hours of operation and thereafter in
accordance with the maintenance schedule
in the engine manufacturer's operating and
maintenance instructions.
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