-7-
Installing the Float
The float support is fixed temporarily. Fasten the bolt
firmly. Then the float pipe into the float support, and
to tighten the Butterfly bolt. Although the float level is
preset, follow the procedures given below to change
the level.
(1) Loosen the butterfly bolt and adjust the height at
the top and the bottom of the float pipe to set the
starting and stopping water levels.
(2) After completing the setting, tighten the butterfly
bolt to secure both the top and the bottom of the
float pipe.
* In the case of an automatic alternating model,
apply the same procedures to set the starting
water level. Then, by loosening the screw of pipe
holder, set the parallel operation water level as
desired. Fasten the screw to secure the support
pipe for the parallel operation float.
* To prevent unintended operation, face the floats
outward.
To change the operating water level on an automatic alternating model, perform the setting by referring to the
diagram on the right.
* After changing the water level on an automatic alternating model, make sure to adjust its automatic side.
* Pay attention to the positional relationship between floats 3, 4, and 5 to perform the settings.
Adjusting the start float to set the starting water level as
desired:
Start Float
Stop Float
Float Pipe
Float Support
Butterfly Bolt
Water Level Adjustment
Set Screw
Set Screw
L
Make sure that the
float lead wire length
L is 40mm. Failure
to observe this
precaution could
cause the pump to
operate improperly.
1
4
5
3
2
Automatic Pump
(No. 1 Pump)
Automatic Alternating Pump
(No. 2 Pump)
Starting
Water Level
Starting
Water Level
Stopping
Water
Level
Stopping
Water
Level
Parallel Operation
Water Level
50mm minimum
30mm
minimum
50mm minimum
Number
Name
Color
1
No. 1 Pump Stop Float
Red
2
No. 2 Pump Stop Float
Red
3
No. 2 Pump Alternating Start Float Yellow
4
No. 1 Pump Start Float
Yellow
5
Green
No. 1 Pump / No. 2 Pump
Parallel Operation Float
Attaching a Chain to Suspend the Pump
Make sure that the chain does not become
twisted during installation. Failure to observe this
precaution could cause the chain to break and the
pump to fall and break, which could lead to injury.
When you mount shackles, be also careful so that
the eye-bolt (pin) may not get dislocated, by means
of providing a stainless steel wire or tying band.
CAUTION
To use the pump with the guide rail, refer to the separate operation manual
entitled "Guide Rail".
Note:
Refer to the illustration on the right in order to suspend the pump by a chain.
Shackle
Eye-Bolt
(5) Properly perform piping work so as not to create any air pockets in the middle of piping.
With automatic control, the sewage water in the pipe could flow backwards,
causing the water surface control to react immediately. As a result, the pump
will operate ON/OFF repeatedly, which could cause the pump to malfunction.
(6) Install a non-return valve if the pump tank is deep, or if the vertical head or the lateral distance is long.
CAUTION
