Hog Technologies HT1000SR, Руководство по эксплуатации

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Section 2 - Components
Testing and inspecting nozzles:
To inspect and test the nozzles, tilt the Ground Hog
as much as possible and secure it. Then remove the
spray bar protector. The protector will disrupt the
spray pattern causing inaccuracies when inspecting
or testing nozzle performance.
Once the spray bar protector is removed and all per-
sonnel are well clear of the blasting head, activate the
high pressure system and set the operating pressure
to a safe level. Make sure the head rotation control
valve/speed dial is set to 0 so the spray bar does not
rotate. Staying well clear of the water jets, no closer
than 18”, visually inspect the spray pattern of each
nozzle. If the spray is tight with a cohesive stream
for 1/2-1 1/2 inches (1.3-3.8 cm) from the nozzle, it
rates as grade 4 or better (Refer to the Nozzle Quality
Guide in this section of the manual) and it is good.
DANGER
THE HIGH PRESSuRE STREAM FROM THE SPRAY NOZZLES
CAN CAuSE SEvERE INJuRY OR dEATH IF IT COMES IN
CONTACT WITH HANdS, FEET OR ANY PART OF A PERSON’S
BOdY. IT CAN ALSO PROJECT LOOSE dEBRIS IN THE AREA
OF THE SPRAY BAR WITH ENOuGH FORCE TO CAuSE
SERIOuS INJuRY, PARTICuLARLY TO THE EYES. HIGH
PRESSuRE WATER CAN TEAR OFF SKIN ANd INJECT WATER
dIRECTLY INTO THE BLOOd STREAM WHICH CAN BE FATAL.
T O E L I M I N AT E T H E P O S S I B I L I T Y O F A C C I d E N TA L
ACTIvATION, ALWAYS dEACTIvATE THE HIGH PRESSuRE
SYSTEM BEFORE LEAvING THE GROuNd HOG uNATTENdEd
OR PASSING IT TO ANOTHER PERSON. MAKE SuRE THE
OPERATOR OF THE GROuNd HOG IS REAdY WITH FIRM
GRIP ON THE HANdLE ANd THAT THE AREA IS CLEAR OF
PEOPLE, HANdS ANd FEET BEFORE ENGAGING THE HIGH
PRESSuRE SYSTEM TO CHECK THE NOZZLES.
If a nozzle rates as a 5 or higher on the Nozzle
Quality Chart, it is worn or damaged and must be
replaced. Nozzles are easy and quick to replace.
Refer to the nozzle replacement procedure in the
Maintenance section of this manual for detailed
instructions for replacing nozzles.
Nozzles typically last 12-16 hours of blast time,
however, you can experience shorter or longer
nozzle life, depending on the source and quality of
water being used. Any dirt or debris in the system
can clog a nozzle orifice causing a spike in the high
pressure system which will rupture the burst discs
and could cause damage to components.
NOTICE:
NOZZLES MuST ALWAYS BE CHECKEd WITH THE SPRAY
BAR PROTECTOR REMOvEd TO AvOId INACCuRATE
REAdINGS. START THE PuMP AT LOW PRESSuRE ANd
SLOWLY INCREASE TO OPERATING PRESSuRE TO CHECK
NOZZLE quALITY AS WELL AS LEAKS ON THE SPRAY
BAR, NOZZLES ANd HOSES. SHuTdOWN THE uHP POWER
SYSTEM TO RELIEvE ALL WATER PRESSuRE BEFORE
MAKING ANY REquIREd REPAIRS OR AdJuSTMENTS. TO
INCREASE THE LIFE EXPECTANCY OF THE SPRAY BARS
ANd NOZZLES, ALWAYS REMEMBER TO INSTALL THE
SPRAY BAR PROTECTORS BEFORE BEGINNING BLASTING
OPERATIONS.
You can select different nozzle sizes in a variety
of spray bar configurations to accommodate the
material to be removed and the type of substrate.
The Nozzle Quality Guide in this section will
provide assistance in choosing the right nozzle
configurations for most removal applications.
The number of nozzles in a spray bar should
Typical Bad Nozzle - Note Stream Fans Out at Nozzle
Shown on Hog Head Spray Bar
Typical Good Nozzles with a Tight Cohesive Stream
Shown on Hog Head Spray Bar