Wallenstein LXG520R, Руководство оператора

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LXG520R
Grapple
Installation
19
4. Bolt the mounting bracket to the grapple mount using
the ten 5/8"NC x 1-1/2" bolts supplied. Torque-tighten to
180 lbf•ft (215 N•m).
5. Remove the bucket from the excavator and install the
excavator mounting bracket in its place. Reuse the bucket
pins and fasteners.
5.3 Hydraulic Connections
IMPORTANT! Customer-supplied hydraulic hoses must
meet SAE J517 or DIN 20066 standards for high-pressure
hydraulic hoses and hose ends.
Using quick-disconnect fittings on hose ends can
cause a pressure drop and flow restriction.
Most excavators are equipped with auxiliary hydraulic circuits
for attachments. Auxiliary control valves can be adjusted to
provide the correct fluid flow at the proper relief pressure setting
for attachments.
Auxiliary circuits must have hoses or steel tubes routed along
the excavator boom out to the boom nose.
For this grapple, whip hoses must be provided by the customer
to connect the grapple control valve to the auxiliary circuit at the
boom nose. Hose length can vary depending on the excavator.
If the grapple is going to be removed and installed, use shut-off
valves or quick-disconnect fittings on the whip hose ends.
The hydraulic lines are isolated if disconnecting or connecting,
reducing the risk of releasing high pressure fluid and fluid loss.
If disconnecting hydraulic lines, always use dust caps to keep
dirt and contamination out.
Arrows on the Rotator Body Indicate
Function
Grapple Open
Grapple Close
R
Grapple Rotate
5.3.1 Hydraulic System Safety
• Make sure that all hydraulic system components are kept
clean and in good condition.
• Relieve pressure on the hydraulic system before working
with it. The hydraulic system operates under extremely high
pressure.
• Before applying pressure to the hydraulic system, make
sure that all the connections are tight, and the hoses and
fittings are not damaged.
• Immediately replace any hydraulic hose that shows signs
of swelling, wear, leaks, or damage. A swollen, worn,
damaged, or leaking hose can burst and cause a hazardous
and unsafe condition.
• High-pressure hydraulic fluid leaks:
-
Do not use your hand to check
for hydraulic fluid leaks. Hydraulic
fluid escaping under pressure can
penetrate the skin causing serious
injury or death. Use a piece of
cardboard or wood to check for
leaks.
-
Wear the correct hand and eye
protection when searching for a
high-pressure hydraulic leak.
-
Seek medical attention immediately if injured by a
concentrated high-pressure stream of hydraulic fluid.
Serious infection or toxic reaction can develop after
hydraulic fluid pierces the skin's surface.
• Do not attempt any makeshift repairs to the hydraulic lines,
fittings, or hoses. Do not use tape, clamps, or cements to
attempt a repair. Doing so can cause sudden failure and
create a hazardous and unsafe condition.
• Do not bend or strike high-pressure lines, tubes, or hoses,
or reinstall them in a bent or damaged condition.
• Make sure that hydraulic hoses are routed to avoid chafing.
• Never adjust a pressure relief valve or other pressure-
limiting device to a higher pressure than specified.