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Section 3 - Operation
Waterblasting Operation Do’s and Don’ts
Do’s:
•
STOP blasting before stopping the truck. Blasting
with the unit stopped will damage the pavement,
spray bar and blast head.
•
STOP blasting before changing direction.
•
If there is any doubt about the correct spray bar
for the job, choose a less aggressive spray bar.
• Adjust the forward speed and head rotation to re
-
move 98% of the paint in a single pass to eliminate
a second pass and more potential for damage.
• Adjust the pressure for the pavement. Typically
a blast pressure between 32,000 and 38,000 psi
is used.
• Check and clean the vacuum filter frequently to
ensure strong vacuum pressure while blasting. A
dirty filter and low vacuum will leave excessive
paint chips and debris on the pavement slowing
productivity.
•
Check the charge pressure before blasting opera-
tions begin. Change both filters if charge water
pressure is below 60 psi (4 BARS) before begin-
ning operations.
• Monitor the water flow to the stuffing boxes fre
-
quently to ensure a steady stream is flowing to
cool and lubricate the packing.
•
Monitor charge pressure frequently during blasting
operations to ensure proper charge water pressure
while blasting.
•
Check the pavement frequently and watch the
outer edges of the lines for damage. Continuously
make adjustments as required.
Don’ts
•
Do not allow untrained personnel to operate Stripe
Hog equipment.
•
Do not continue blasting with a damaged nozzle. It
can cause damage, wastewater, reduce the power
of other nozzles and slow production.
•
Avoid running the blast head wheels on rumble
strips. Always adjust the Hog Arm and the castor
wheel support arms on the blast head to keep the
wheels off rumble strips.
• Do not blast directly on sealed joints in the pave
-
ment. Especially weather stripping on bridges or
runways.
• Do not blast over pavement markers/reflectors.
Markers can damage the blast head and spray bar
and should be removed prior to blasting.
•
Do not blast over damaged or uneven pavement
that can damage the blast head and spray bar.
• Do not allow the debris bag to become overfilled.
Monitor the bag and dump the bag and tank before
they become full.
•
Do not allow the charge pump to run out of water.
Water is a lubricant that cools the charge water
and high pressure pumps. They will be damaged
if they run dry. Always monitor the water level in
the clean water tanks and refill when they get low.
•
Do not activate the PTO switch when the charge
pump and transmission PTO are not activated. The
charge pump supplies clean water to prime and
lubricate the UHP pump.
3.7 Routine Shutdown
The shutdown procedure should be followed each
time the waterblasting system is deactivated and
the truck is shifted from WORK mode to DRIVE
mode.
The procedures in the following instructions pro-
vide general instructions for shifting from WORK
mode to DRIVE mode will apply to most trucks.
However, your truck may be slightly different,
depending on the options selected. Always re-
fer to the placard on the back of the visor in
the cab for specific startup and shutdown
instructions for your truck.
Shutdown procedure:
1.
Shutdown high pressure by turning off the
DUMP VALVE 40K switch.
2. Stop the truck and set the parking brake.
3. Turn the HEAD ROTATION speed dial to 0.
4. Reduce the engine speed to idle and allow it to
run at idle speed.
5. Allow the vacuum blower to operate for a couple
of minutes to clear waste water from hoses and
dry out the vacuum system.
6.
Turn the DIRTY WATER switch off.
7.
Turn the Hog Arm FLOAT SWITCH off.
Summary of Contents for STRIPE SH7500
Page 1: ...75 H Operations Manual...
Page 2: ......
Page 72: ...72 NOTES...
Page 108: ...108 NOTES...
Page 161: ...161 Section 5 Scheduled Maintenance...
Page 167: ...167 Appendix 2 Tools Spare Parts...
Page 168: ...168 Appendix 2 Tools Spare Parts...
Page 169: ...169 Appendix 3 Daily Report Pre Op Checklist 1 877 HOG ROAD WWW STRIPEHOGSUPPORT COM 60...
Page 178: ...178 NOTES...
Page 185: ......
Page 186: ......
