Hog Technologies SK5500, Руководство по эксплуатации

Страница: 41 / 161

41 41
Section 2 - Stripe Hog Systems
2.8 High Pressure Hoses,
Connections & Fittings
The ultra-high pressure hoses used in the water
blasting system are tough but not invincible.
They require proper care and handling to achieve
maximum life expectancy. Only use high pressure
hoses with an operating pressure rating of 40,000
psi (2758 Bar) and a listed burst rating of 60,000
psi (4,137 Bar). The primary ultra-high pressure
hoses transfer pressurized water from the UHP
pump to the blasting head. The hose is secured to
the blasting head thru-shaft with the swivel nut. A
swivel seal and brass backup ring are installed in
the fitting at the swivel nut connection creating a
high pressure seal while allowing the thru-shaft to
rotate freely. The swivel seal has a life expectancy
of approximately 12 to 16 hours depending on the
quality of water.
All high pressure hoses, fittings and connections
have weep holes. Water leaking from a weep
hole while the system is pressurized indicates
that there is a worn or defective seal, loose con-
nection or a damaged part. It is critical that the
operator and/or maintenance personnel inspect
the ultra-high pressure hoses, hose connections
and fittings prior to the start of each shift, periodi -
cally throughout the shift and anytime there is a
loss in pressure. Any hose, fitting or component
that shows signs of deterioration, wear or leakage
should be replaced immediately and before oper-
ating any high pressure water blasting equipment.
A more thorough inspection of all high pressure
pumps and components should be conducted at
each routine service interval.
Take proper care of your hoses:
A) Protect the ultra-high pressure hose from
contact with sharp objects, abrasive surfaces,
foot and/or wheel traffic.
B) Never subject an ultra-high pressure hose to
a coil diameter less than 10” (.25 m) or pull
on a coiled hose. Always make sure the hose
is straight with no coils before pulling on the
hose to deploy it.
C) Never pull hard on an ultra-high pressure hose
or expose the hose to heavy loads like drag-
ging equipment or deploying long lengths of
hose. Never pull more than 25 feet of hose by
a coupler or fitting. Always move long lengths
of hose by the hose itself to keep the strain
off the fittings.
WARNING
H I G H P R E S S U R E H O S E S O F I N F E R I O R Q U A L I T Y O R
OF A LOWER PRESSURE RATING THAN SPECIFIED BY
H O G T E C H N O L O G I E S C A N R E S U LT I N D A M A G E TO
EQUIPMENT AND/OR SEVERE INJURY TO PERSONNEL.
NEVER USE REPLACEMENT HOSES WITH UNKNOWN
PRESSURE RATINGS OR RATED LESS THAN REQUIRED
SPECIFICATIONS.
WHEN REPLACING DAMAGED OR WORN HOSES YOU
SHOULD ONLY USE HIGH PRESSURE HOSES PURCHASED
F R O M H O G T E C H N O L O G I E S W I T H A N O P E R AT I N G
PRESSURE RATING OF AT LEAST 40,000 PSI (2758 BAR.)
THESE HOSES ARE DIFFICULT TO FIND. YOU SHOULD
ALWAYS KEEP SPARES ON THE TRUCK AS SUGGESTED IN
THE SPARE PARTS SYSTEM.
High Pressure Hose