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35
Section 2 - Stripe Hog Systems
2.7 Thru-shaft, Spray Bars,
Protectors And Nozzles
Spray Bar Motor
A hydraulic powered thru-shaft motor rotates the
spray bar on the Hog Head assembly. The center
of the rotating shaft is drilled to allow high pres-
sure water to pass through the shaft to the spray
bar. A specially designed swivel seal and brass
backup ring create a water tight, high pressure
seal at the connection of the high pressure hose to
the thru-shaft. The hose is secured to the rotating
shaft housing by the swivel nut.
The swivel nut is hand tightened only. If the
nut becomes loose, the hose will wobble and dam-
age the swivel seal. Additionally, if the swivel nut
is overtightened by using a pipe wrench or pliers,
the swivel seal will be damaged. The swivel nut
1.
Swivel Nut
2.
Swivel Seal Weep Hole
3.
Thru-shaft Cover
4.
Shaft Lock Button
5.
Speed Sensor
6.
Brass Backup Ring
7.
Swivel Seal
6
7
Swivel Seal & Brass Backup Ring
1
3
5
2
4
must be checked daily to ensure it is tight and
that the swivel seal is not leaking. Any water drip-
ping from the weep holes just below the swivel
nut while the system is pressurized indicates the
seal is leaking and must be replaced. Operating
the blasting head with a leaking swivel seal will
cause complete failure of the seal, stopping blast-
ing operations.
The RPM of the thru-shaft motor is controlled by
the HEAD ROTATION speed dial on the control
panel. A speed sensor on the thru-shaft motor
housing continuously monitors the RPM of the
thru-shaft/spray bar and displays the speed on
the digital HEAD ROTATION speed gauge in the
panel. During blasting operations, the operator
can monitor the RPM of the spray bar and make
adjustments as necessary.
Thru-Shaft Motor Components
Summary of Contents for SK5500
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Page 135: ...135 Section 5 Scheduled Maintenance Hog Technologies...
Page 141: ...141 Appendix 2 Tools Spare Parts...
Page 142: ...142 Appendix 2 Tools Spare Parts...
Page 143: ...143 Appendix 3 Daily Report Pre Op Checklist 1 877 HOG ROAD WWW STRIPEHOGSUPPORT COM...
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