TSE PTV100/72, Руководство пользователя

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Series 90 Inspections and Adjustments 8
Eccentric Plug
Switch Pin
Special Lock Nut
for Eccentric Plug
Control Mounting Surface
View In Direction X
With Switch And Lock Nut Removed
View At Section A-A
Spool Bore Plug
Spool Centering Spring
Control Link Assemblies
Control Spool Assembly
O-Ring
Spool Spring Washer
Spool Spring Washer(s)
Orifice Check Valve Seat
Neutral Start Switch
Eccentric Plug
Switch Pin
Special Lock Nut
for Eccentric Plug
Switch Lock Nut
Switch Cam
O-Ring
O-Ring
Washer
Control Shaft
MDC With Neutral Start Switch
Top View
X
A A
Components of Standard Manual Displacement
Control with Neutral Start Switch
8.2.3 MDC Neutral Start Switch (NSS)
Adjustments
The neutral start switch (NSS) provides a means to
prevent the system prime mover from starting while
the pump control handle and control input shaft are in
a position which would command the pump to go “in-
stroke” in either the “forward” or “reverse” direction.
When the control input shaft is in its “neutral” position,
the inner end of the switch pin moves into a slot on the
eccentric cam attached to the control shaft. This
allows the spring loaded NSS to close, completing
the electrical starting circuit for the prime mover.
When the control input shaft is NOT in its “neutral”
position, the eccentric cam moves the switch pin out
of the slot. This forces the NSS to open, breaking the
electrical starting circuit for the prime mover.
(continued)
90000830
CONTENTS