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Safety and operating instructions
Hydraulic control and
connectors
The by-pass valve (1) shall be in the OFF position
when starting and in the ON position when using
the work tool.
Connectors (2) and (3) are used to connect the
power pack to the work tool as follows:
►
Connector (2) = Return (female Q.R. coupling
on hose).
►
Connector (3) = Feed (male Q.R. coupling on
hose).
12
Connecting/disconnecting
hoses
Ensure that the work tool you plan to use is
compatible with the model of power pack being
used. Otherwise, both the power pack and the
work tool might be harmed. Check the "Technical
data" in this instruction book and compare the
flow rate with the technical specifications in the
instruction book for the work tool.
Connecting hoses
►
Turn the by-pass valve to the OFF position and
stop the engine.
►
Make sure the couplings are clean and
serviceable.
►
Attach the return line hose and the feed line
hose.
►
Start the engine and run the power pack to fill
up the hydraulic circuit. Check the hydraulic oil
level.
Disconnecting hoses
►
Turn the by-pass valve to the OFF position and
stop the engine.
►
Remove the return line hose and the feed line
hose.
The couplings are unlocked by moving the collar
back on the coupling.
Hose length
For power packs giving a flow of 20 l.p.m. (5 US
gal/min), a maximum hose length of 21 m (69 ft)
is recommended. For power packs giving a higher
flow, a maximum hose length of 14 m (46 ft) is
recommended.
Normally, 7 m (23 ft) of Twin hose is used for the
power pack.
Twin hoses and other accessories are shown in the
spare parts list.
© 2008 Atlas Copco Construction Tools AB
LP 9-20 P
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No. 3392 5054 83 e
2008-06-30
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