Tsurumi PU Submersible Vortex Sewage Pump - Manual (Page 9)

-8-
Installing the Float
Insert the float pipe into the holder, and use
a Phillips screwdriver to tighten the set screw.
Although the float level is preset, follow the
procedures given below to change the level.
(1) Loosen the screw 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
screws to secure both the top and the bot-
tom of the float pipe.
When you are going to set a lower start level,
pay attention not to operate the pump at
the levels below the C.W.L. longer than 15
minutes.
* In the case of an automatic alternating
model, apply the same procedures to set
the parallel operating water level. Then,
remove the alternating start float by loos-
ening its screw, set the alternating starting
water level as desired, and secure the alter-
nating start float in place by tightening the
screw.
* 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. There is no need to change
its stopping water level.
* After changing the water level on an
automatic alternating model, make
sure to adjust its automatic side.
* Pay attention to the positional rela-
tionship between floats 3, 4, and 5 to
perform the settings.
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
Holder Start Float
Stop Float
Float Pipe
Water Level Adjustment
Set Screw
Start Float
Stop Float
Set Screw
Adjusting the start float to set
the starting water level as
desired:
Setting the stop float water
level high:
Start Float
Stop Float
Set Screw
Water Level
Adjustment
L
L
Setting the start float
water level low:
Make sure that the
float lead wire length
L is 40mm.
Failure to observe
this precaution could
cause the pump to
operate improperly.
Make sure that the
float lead wire length
L is 200mm.
Failure to observe
this precaution could
cause the pump to
operate improperly.
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
50mm
minimum
1
3
4
5
2
Attaching a Chain to Suspend the Pump
Chain
Bolt
Shackle
Washer (for 1.5kW)
Refer to the illustration on the right in order to suspend
the pump by a chain. (On a model with a 1.5kW power
output, use a washer.)
CAUTION 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.
Note:
To use the pump with the guide rail, refer to the
separate operation manual entitled "Guide Rail".