
·
Never put fingers in mounting bores or
locking bars.
·
Keep personnel away from the demoli-
tion tool while:
·
The demolition tool is jammed in the
cylinder housing; it may release sud-
denly.
·
Technicians service the hydraulic sys-
tem.
·
Technicians service the nitrogen
precharge chamber.
5.4.5 Hydraulic Pressure
Precautions
·
Before disconnecting any hydraulic
lines, properly bleed all hydraulic system
pressure.
·
Make sure the Street Hammer and car-
rier hydraulic systems are compatible,
especially regarding:
·
Flow rate and pressure
·
Pressure relief valve setting
·
Hydraulic fluid compatibility
·
Heat exchanger if required
5.4.6 Nitrogen Gas Precautions
·
To avoid an explosion and equipment
damage, use only 99.8% pure nitrogen
gas in the precharge chamber.
·
Do not allow anyone into the service area
while the service technicians are testing,
measuring, filling or bleeding the nitro-
gen chamber.
5.4.7 Hoisting and Lifting Precautions
·
The Street Hammer weight is listed in
the Technical Specifications table, Sec-
tion 4.1. Before starting a procedure that
requires hoisting, prepare the required
lifting equipment.
·
When hoisting the assembled Street
Hammer, use the designated lifting eyes
on the hammer box.
·
Keep hands clear of any bores or fittings
when moving, removing, attaching, or
hoisting the Street Hammer.
5.4.8 Maintenance Precautions
·
Do not start maintenance on the Street
Hammer until it has cooled. The Street
Hammer is heated during operation and
some components become very hot.
~
WARNING
Bodily injury and equipment damage
could result if the Street Hammer
falls. After detaching it from the car-
rier, block the Street Hammer se-
curely.
~
WARNING
Clearing a jammed demolition tool
is hazardous. Properly protect per-
sonnel against sudden release.
·
Jamming the demolition tool in the
housing can damage internal hammer
components and shorten Street Hammer
service life. To reduce the risk of jam-
ming, carefully follow the Operator
Checklist in Section 9.0 and the Care and
Maintenance Schedule, Section 11.0, es-
pecially:
·
Lubricating the demolition tool.
(See Section 8-5.)
·
Checking tool bushing wear.
(See Section 11.2.3.)
·
Checking piston impact surface wear
(See Section 11.2.4.)
·
Checking demolition tool wear.
(See Section 11.2.6.)
5.4.9 Site Precautions
·
The danger area around the carrier is
greater for hammer operation than for
carrier operation due to the risk of flying
rock splinters and debris. Immediately
cease operation of the Street Hammer if
personnel without protective glasses or
protective clothing enter the danger
5-3
6-1-03
A
LLIED
Street Hammer
AS Series
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