Condux Winch Line Blower System - Manual (Page 14)

CONDUX WINCH LINE BLOWER 12
Figure 12: MONITOR STATUS
5. Continue monitoring the winch line status and the pressure gauge on the control
valve assembly, Figure 12. Average pressure reading during normal missile blowing
operations should be approximately 70 – 90 psi.
!DANGER: DO NOT ATTEMPT TO GRAB ONTO THE WINCH LINE TO ASSIST ITS
TRAVEL OR SLOW IT DOWN. SERIOUS PERSONAL INJURY OR DEATH MAY
RESULT FROM FAILURE TO OBEY THESE RULES.
!DANGER: DO NOT LEAVE THE MOVING WINCH LINE UNATTENDED. PERSONNEL
OR EQUIPMENT COULD BECOME ENTANGLED, RESULTING IN SERIOUS
PERSONAL INJURY OR DEATH.
!CAUTION: Do not tamper with or remove the pressure relief valve. Pressure must
be limited to 90 psi. If the pressure exceeds 90 psi., immediately shut the control
valve and check the pressure gauge and the pressure relief valve for proper
operation. If no faults can be found, return the control valve assembly to Condux
International Inc. for repair or replacement (see Appendix for return instructions).
NOTE: Starting and stopping of the winch line blower repeatedly during one conduit run may
put undue stress on missile and winch line connections and/or winch line drum. Once the missile
and winch line are moving forward, keep air pressure and flow constant to propel the winch line
at an average rate of 100 feet per minute.
6. While monitoring the winch line blowing procedure, use care to prevent the winch
line and missile from “out running” the air compressor. This is characterized by the
winch line jumping, flapping or surging (shooting into the conduit very quickly, then
stopping, and shooting quickly into the conduit again). If this begins to occur, slow
down the air flow by partially closing the control valve until the winch line feeds off
the drum SMOOTHLY and CONSISTENTLY.