160GR Natural Gas Booster Instruction Manual
Mayekawa all rights reserved. Subject to change without notice. Lat revised in October 2007
p.10
3.1.2 When the Current Port is not known
When the position of the current port is not known, move the Variable Vi valve to the
position of the stopper on the loading side. Then turn the handle as many times as
required in order to change to the desired Vi and move the Variable Vi valve.
a) Remove the Variable Vi support guide pin from the case. (The one with the larger
size of the hex head (30mm) is the guide pin.)
b) Turn the handle in clockwise until the Variable Vi valve touches the stopper.
c) According
to
Graph2.1
, turn the capacity handle as many times as required in
counter-clockwise and move the Variable Vi support slide valve.
On the “K” and “L” ports, the Variable Vi support guide pin should be attached to the
bottom of the suction cover, and plug should be attached to the bottom of the rotor
casing.
On the “M” and “H” ports, contrarily, the Variable Vi support guide pin should be attached
to the bottom of the rotor casing, and the plug should be attached to the bottom of
the suction cover.
d) After moving the Variable Vi support slide valve, insert Vi support guide pin and lock
it with the hex bolt. Insert the dice stud for the seal into the Variable Vi support slide
valve before tightening it.
e) When the Vi guide pin feels heavy or caught by something, it should not be forced
into the holes. When this happens, it is most likely that the position of the hole of the
Variable Vi vale and that of the Variable Vi valve guide pin are not proper aligned.
Slightly turn the handle to the right or the left to find the position where the pin can
be inserted smoothly.
f) After the Variable guide pin is smoothly inserted all the way, lock it by a proper
torque. Put the dice stud for the seal in, and lock it at the position opposite to that of
the Variable guide pin.
[CAUTION]
・
If the turning handle feels heavy, do not force the handle to turn. This may result to
damage the stopper area.
・
K Port
L Port
M Port
H Port
Moving Distance
(mm)
5 26
56
77.5
Number of Rotations
of Handle
13/16 4-3/8 9-3/8
12-15/16
Direction of
Rotations
Counter-Clockwise
Counter-Clockwise Counter-Clockwise
Counter-Clockwise
Position of guide pin
Suction Cover
Suction Cover
Rotor Casing
Rotor Casing
