JETStream TwinForce Series, Руководство по эксплуатации

Страница: 34 / 112

26
Operation Manual
Recommended Equipment
Jetstream equips the waterblast units with
the components they recommend for safe op-
eration. Those components include:
• Pressure Gauge
• Two Rupture Disc Assemblies
• Bypass Valve or Regulator Valve
• Discharge Quick Disconnect Coupling.
ATTENTION
Installation of two rupture discs is required by
Jetstream for warranty coverage on this pump.
One rupture disc must be rated at 120% of the fluid
end stamped pressure rating. The other disc must
be rated at 140% of the fluid end stamped pressure
rating.
Keep a supply of rupture discs on hand for operation
at different pressures and for replacement in the
event of a rupture.
WARNING
! !
Do not operate the engine without water in the
system. Damage to the charge pump will occur.
ATTENTION
A quick disconnect coupling is an important
means of protecting the manifold from wear at the
high pressure discharge hose connection port. If
the internal threads on the manifold become worn
or damaged the cost to repair them is far greater
than replacing a coupling. The manifold would
need to be shipped back to Jetstream for repair or
replacement.
Hose and Water Supply
Requirements
–
The water supply hose inside diameter
must be large enough to supply 150% of
the unit’s maximum flow requirements.
–
The inside diameter of the high pressure
discharge hose will be determined by the
necessary length of hose and the amount
of flow passing through the hose length.
Contact your Jetstream representative for
proper hose sizing.
–
Supply pressure must be no greater than
35 psi (2.4 bar) coming into the regulator.
If the pressure exceeds 35 psi, install a
pressure regulator large enough to meet
flow requirements. Regulators are avail -
able from Jetstream.
Start-up Preparation
NOTE: These steps may be completed on one
engine and pump at a time.
1. Park the trailer (or place the skid) on a
hard, level surface.
2. For trailer mounted units, level the trailer
using the jack stand.
3. Check the engine fluid levels. Refer to the
engine manual for more information.
4. Check the fuel level.
5. Check the oil level in the pump.
6. Check the oil level in the PTO.
7.
Inspect the filter bags. Inspect the sec -
ondary filter cartridge if operating at 40K.
8. Check the tightness of the gland nuts on
each stuffing box.
9. Check the belt tension.
10. Inspect all equipment. Ensure that every
piece of equipment in the pressure circuit
is properly rated for the intended operat-
ing pressure. Replace any component that
is not properly rated.
11. Connect the supply hose and verify the
drain valve is closed.