MEDO | LA-100 | Nitto LA80 Blower Owners Manual

Nitto LA80 Blower Owners Manual
MEDO LA BLOWER
INSTRUCTION MANUAL
INSTALLATION & MAINTENANCE
LA-28B/ LA-45B
LA-60B/ LA-80B
LA-100/ LA-120
This instruction manual should be read and understood thoroughly
before any installation and maintenance work is executed.
After reading this instruction manual, please keep it handy for reference.
CONTENTS
1. Model and Specifications
2
2. Dimensions
2
3. Safety Instruction
3
4. Installation (Septic tank application)
4
5. Maintenance
5
Parts List (LA-28B/ LA-45B)
8
Parts List (LA-60B/ LA-80B)
9
Parts List (LA-100/ LA-120 )
10
1
1. Model and Specifications
Model
LA-28B
LA-45B
Standard Voltage *
LA-60B
LA-80B
LA-100
LA-120
230V AC
Rated Frequency
50Hz
Rated Pressure
Operating Pressure
110mbar
150mbar
50 - 180mbar
0,05 - 0,18 bar
100 - 200mbar
0,1 - 0,2 bar
180mbar
100 - 250mbar
0,1 - 0,25 bar
Rated Airflow
28l/min.
45l/min.
60l/min.
80l/min.
100l/min.
120l/min.
Power Consumption
29 W
47 W
64 W
86 W
100 W
130 W
Weight
2.9kg
3.0kg
5.0kg
5.3kg
9.4kg
9.4kg
IP Class
55
55
55
55
55
55
* The unit must only be operated at the voltage as indicated on the outer casing of the blower.
2. Dimensions
LA-28B/LA-45B
D
H
Label
L
L=207mm
W=182mm
H=205mm
D=18mmOD
W
LA-60B/LA-80B
D
H
Label
L
L=307mm
L=305mm
W=190mm
W=214mm
H=188mm
H=208mm
AD
D=18mmAD
D=18mmOD
W
LA-100/LA-120
D
H
Label
L
W
2
L=408mm
W=210mm
H=232mm
D=26mmAD
3. Safety Instruction
Explanation of Diagrammatic Expressions
The term “Attention” used in this manual is to alert you to dangers such as the following;
Degree of Danger Indicated by The Term
Term
ATTENTION
This term indicates the possibility that continuing to work while ignoring
this “Attention”, or working incorrectly without full understanding, may
cause personal injury or physical damage.
The Meaning of the Symbols
Symbols
This symbol advises you of an item which should BE NOTED (including Danger and Warning)
and the general notes will be shown by a picture, word or explanatory text inside or along the
symbol mark.
This symbol advises you of an action which must NOT BE TAKEN (IS PROHIBITED)
in order to avoid danger. The general actions which must not be taken will be shown by a picture
or explanatory text inside or along the symbol mark.
This symbol advises you of an action which must BE TAKEN (IS MANDATORY) in order to avoid
danger and the general emphasis of the action which must be taken will be shown by a picture
or explanatory text inside or along the symbol mark.
Safety and Operating Instructions
The following safety precautions should always be followed to reduce the risk of breakdown and/or accident.
ATTENTION
To Prevent Electric Shock And Fire
,
1 Don t install the blower where it will be flooded with water.
2 Electrical work must be done by a qualified electrician.
3 The power supply should be the rated voltage shown on the label on the blower and be fitted with an
earth leakage breaker and over current breaker.
4 The power outlet used should be waterproof and include an earth connected to ground.
5 If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or similarly
qualified person in order to avoid a hazard.
,
6 Don t place any objects on the electric cable.
7 Be sure to unplug the blower before starting maintenance.
8 Be sure to put the Upper Case back after maintenance.
,
9 Don t touch the metal part of the blower until it is cooled down as the blower runs very hot.
Ignoring any of the above may cause an electric shock, a fire or a burn.
3
4. Installation (Septic Tank Application)
1. Installation site selection
1 Install our blower near the septic tank.
2
3
4
5
6
7
8
9
If the pipeline is long, the sewage treatment may not perform well due to an insufficient airflow.
Install in a place which is convenient for maintenance.
,
Don t install over a manhole or on soft ground.
Avoid areas where wind-blown leaves and dust gathers.
Install in a well ventilated place.
Install at least 30cm away from the wall of a house.
Installation in the shade is recommended to suppress heat generation of the blower.
,
Don t install the blower where it will be flooded with water. Make sure that the blower is
installed over the water level ot the sewage tank/aquarium to avoid any backflow of the water.
If the blower is installed under the water level a backflow valve must be used.
,
Don t install where there is excess moisture or humidity.
2. Method of Installation
1 The base should be made of concrete strong enough to bear the weight and block vibration from
the blower.
2 The base should be at least 10cm above the ground level and 5cm larger than the external
dimensions of the blower.
3 Provide a separate power outlet to be only used for the blower.
4 Electrical work must be done by a qualified electrician.
5 The power supply should be the rated voltage shown on the label on the blower and be fitted with
an earth leakage breaker and over-current breaker.
6 The power outlet used should be waterproof and include an earth connected to ground.
7 Place the blower horizontally on the base.
8 A soft rubber hose must be used for connection between the air outlet of the blower and the pipe.
9 The rubber hose must be fastened with hose clamps.
10 When making the connection, level the air outlet and the pipe to ensure the hose is not kinked or
blocked.
11 Before starting the operation of the blower, ensure that the water level in the septic tank is
appropriate and the valves on the pipeline are properly opened.
3. Start operation
Insert the power plug into the power outlet with full contact so that the plug itself does not wobble.
Incomplete connection may cause an electric shock or a fire.
After starting operation ensure that there is;
No air leakage from the hose and the pipe connection.
No abnormal noise from the blower.
No vibration transmitted to the ground due to strained piping.
Hose
Blower
Hose clamp
Air outlet of Blower
Over Current Breaker
Earth Leakage Breaker
Power Distribution Line
Waterproof Power
Outlet with grounding
Hose
Base
Hose clamp
Water level
Blower
Water tank or Pond
Base
Aerobic Sewage
Treatment Tank
4
5. Maintenance (Refer the sketches on the next page)
1. Cautions
1 MEDO blowers are OILLESS. Never lubricate them.
2 All blowers have already been precisely adjusted. Never disassemble them.
(Do not try to loosen the Hex. bolts on the Endcap)
3. Safety Instruction
2. Replacement of Filter Element
1 Be sure to unplug the blower before starting the replacement work.
2 Loosen the Bind Screw 1 and remove the Filter Cover 4 .
3 Remove the Filter Element(s) 5 from the Upper Case 6 and replace with new
One(s). At the same time, clean the air inlet of the Filter Cover 4 and the Upper
Case 6 .
4 Assemble the Filter Cover 4 with the Filter Cover Gasket 3 securely positioned.
5 Mount the Filter Cover 4 to the Upper Case 6 , then tighten with the Bind Screw(s) 1 .
6 Time to replace the Filter Element
It is recommended that the Filter Element(s) is cleaned or replaced with new one(s)
depending on the extent of its deterioration as determined by the atomospheric conditions
around the application. The filter element(s) should be checked every three months
and should be replaced jearly.
3. Replacement of Piston Set Assy
1 Be sure to unplug the blower before starting the maintenance work.
2 Remove the Upper Case 6 , loosen all the Hex. Bolts 9 on the Headcover 10 and remove it. In
case it is hard to remove the Headcover 10 insert a flat head screwdriver to the slot(s) on the
edge of the Headcover 10 and twist the screwdriver gently to open.
3 Take out the Piston Set Assy(s).
4 Replace all Piston Set Assys, Gasket A 11 and Gasket B 12 with new ones.
Be sure to keep the Teflon Seal of the Piston 13 away from any dust, swarf,
water, oil or grease. Try not to touch the Teflon Seal of the Piston 13 with your fingers.
5 Insert the Piston Set Assy(s) into the Pump Body. Install Gasket A 11 on the
Headcover 10 and Gasket B 12 on the Pump Body, then fasten the Headcover 10
with the Hex. Bolts 9 .Tighten the Hex. Bolts 9 evenly and alternately then gradually fully tighten.
6 Before putting the Upper Case 6 back, start the blower and check if there is any
air leakage along the Headcover 10 or the Nozzle Seal(s) 33 by briefly blocking the air outlet.
In case there is an air leakage along the Headcover 10 , re-position Gasket A 11 and
Gasket B 12 then re-fasten the Hex Bolts 9 . In case there is an air leakage along the Nozzle
Seal(s) 33 chec k if the nozzle seal is installed on the airtank properly and press the pump body
down to allow the outlet port of the Headcover to catch the Nozzle Seal(s) correctly.
7 Put the Upper Case 6 back after installing GasketC 8 on the Bottom Case
properly. Fasten the Bind Screws/Torx Screws 7 evenly
Piston
and alternately.
Slot
8 Piston Set Assembly replacement period
It is suggested that the Piston Set Assembly is replaced
every 24 months resp. after 20.000 h depending on the
extent of the blower´s pressure and airflow deterioration.
There is a groove on each Teflon Seal of the Piston
indicating the degree of wear. If one or both grooves are
worn away, replacement of the Piston Set Assembly is
recommended.
Teflon Seal
5
LA-28B/ LA-45B
Never loosen these four (4) Hex.
Bolts on the Endcap.
1 Bind Screw
Blower Body
3 Filter Cover Gasket
4 Filter Cover
Bottom Case
33 Nozzle Seal
5 Filter Element
7 Bind Screw
Torx Screw
6 Upper Case
Slot for
screwdriver
Air Outlet
18 Spring Seat
8 Gasket C
19 Spring
Piston Set A'ssy
13 Piston
12 Gasket B
11 Gasket A
Outlet Port
10 Headcover
9 Hex Bolt
LA-60 / LA-80A
A
LA-60B/LA-80B
1 Bind Screw
Never loosen these eight (8) Hex.
Bolts on the Endcap.
4 Filter Cover
3 Filter Cover Gasket
5 Filter Element
Blower Body
6 Upper Case
7 Bind Screw
Torx Screw
Bottom Case
32 Nozzle Seal
8 Gasket C
Air Outlet
12 Gasket B
19 Spring
29 Hex Bolt
12 Gasket B
10 Headcover
Outlet Port
Piston Set A'ssy
13 Piston
11 Gasket A
Slot for screwdriver
LA-100/ LA-120
3 Filter Cover Gasket
4 Filter Cover
1 Bind Screw
Blower Body
Never loosen these twelve (12) Hex.
Bolts on the Endcap.
5 Filter Element
6 Upper Case
32 Nozzle Seal
7 Bind Screw
Bottom Case
Torx Screw
Slot for screwdriver
Air Outlet
8 Gasket C
18 Spring Seat
19 Spring
9 Hex Bolt
13 Piston
12 Gasket B
Outlet Port
11 Gasket A
10 Headcover
6
Piston Set A'ssy
Piston sectional view
Piston Boss
Spring
Spring Seat
Grease
Cautions
Locat the spring into the piston by rotating it clockwise.
Check that grease is present on the convex face of the spring seat.
( If no grease is present, please contact your supplier)
Never use standard grease as it may cause a malfunction.
Keep the Teflon Seal away from any dust, swarf, water, oil or grease.
Teflon Seal
4. Purchasing suggestion for the maintenance parts
1 Filter Element
Model
Part No.
Quantity
LA-28B/LA-45B/LA-100/LA-120
LB02369
10pcs.set
LA-60B/LA-80B
LB03937
10pcs.set
2 Repair Parts Kit
Model
3
Part No.
Quantity
LA-28B
LB01288
1 set
LA-45B
LB03514
1 set
LA-60B
LB03519
1 set
LA-80B
LB03517
1 set
LA-100/LA-120
LB04151
1 set
Contents of Repair Parts Kit
Parts Included
LA-28B/LA-45B
LA-60B/LA-80B
LA-100/LA-120
1
1
2
11 Gasket A
1
2
3
12 Gasket B
1
2
3
13 Piston
1
2
3
18 Spring Seat
1
2
3
19 Spring
1
2
3
5
Filter Element
7
Exploded View
LA-28B/ LA-45B
1
2
3
4
5
28
29
27
6
7
8
26
20
25
24
30
2122
23
18
32
19
13
9
15
16
17
14
34
33
35
11
38
12
31
10
30
Parts List
No.
Part Name
LA28B
Q'ty
LA45B
Q'ty
No.
Part Name
LA28B
Q'ty
LP30581
1
LP30581
1
27
Field Core Assy P
LB01536
1
LB03466
1
Field Core Assy E
LB04038
1
LB04028
1
Endcap
LQ01052
1
LQ02892
1
Hex Bolt
LP31316
4
LP31316
4
30
Rubber Feet
LQ04256
4
LQ04256
4
31
Cable Assy UK
LB05341
1
LB05341
1
LB05307
1
LB05307
1
1
Bind Screw
2
Seal Washer
LP30635
2
LP30635
2
3
Filter Cover Gasket
LQ02607
2
LQ02607
2
4
Filter Cover
LQ02575
1
LQ02575
1
28
5
Filter Element
LQ02605
1
LQ02605
1
29
6
Upper Case
LB02937
1
LB02937
1
7
Bind Screw UL
LP30581
4
LP30581
4
LA45B
Q'ty
Field Core Assy Q
Torx Screw CE
LQ03082
4
LQ03082
4
Cable Assy D
8
Gasket C
LQ02601
1
LQ02601
1
Cable Assy A
9
Hex Bolt
LP31316
4
LP31316
4
Cable Assy J
LQ01037
1
LQ01037
1
10
Headcover
LQ02567
1
LQ02063
1
Cable Assy UL
LB04770
1
LB04770
1
11
Gasket A
LQ01043
1
LQ01043
1
32
Nozzle Seal
LQ02598
1
LQ02598
1
12
Gasket B
LQ01042
1
LQ01042
1
33
Air Tank Assy
LB02987
1
LB02987
1
13
Piston
LA70625
1
LB03132
1
34
Joint Hose
LQ02602
1
LQ02602
1
14
Piston Sub Assy
LA70626
1
LB03133
1
35
Bottom Case
LB02938
1
LB02938
1
15
Inlet Valve
LP30916
1
LP30916
1
36
Cushion
16
Valve Retainer A
LP11548
1
LP11548
1
37
Rubber Plug
17
CS Ring
LP12948
1
LP12948
1
18
Spring Seat
LP12155
1
LP12155
1
19
Spring
LP30620
1
LQ02743
1
OPTION
38
Hose Assy
LA97475
20
Housing
LB03184
1
LB03184
1
21
SE Ring
LP12475
2
LP12475
2
22
Valve Retainer B
LP13735
2
LP13735
2
23
Outlet Valve
LP10359
2
LP10359
2
24
Screw 5 x 20
LP12599
2
LP12599
2
25
Insulation Bush
LP10355
2
LP10355
2
26
Rear Cylinder
LA71843
1
LA71843
1
8
LB03185
Exploded View
LA-60B/ LA-80B
Parts List
LA-60B
Q'ty
LA-80B
Q'ty
No.
LA-60B
Q'ty
LA-80B
Q'ty
LP30581
1
LP30581
1
22
Endcap
LQ03767
1
LQ03767
1
Seal Washer
LP30635
2
LP30635
2
Endcap (Thermal)
LQ05321
1
LQ05321
1
Filter Cover Gasket
LQ02607
2
LQ02607
2
23
Hex Bolt
LP31316
8
LP31316
8
4
Filter Cover
LB06202
1
LB06202
1
24
Rubber Feet
LQ05143
4
LQ05143
4
5
Filter Element
LQ02730
1
LQ02730
1
25
Cable Assy UK
LB05341
1
LB05341
1
6
Upper Case
LB06203
1
LB06203
1
Cable Assy D
LB05307
1
LB05307
1
7
Bind Screw UL
LP30581
6
LP30581
6
Cable Assy A
LB06463
1
LB06463
1
Torx Screw CE
LQ03082
6
LQ03082
6
Cable Assy J
LB00914
1
LB00914
1
8
Gasket C
LQ05144
1
LQ05144
1
Cable Assy UL
LB04770
1
LB04770
1
9
Hex Bolt
LP31316
6
LP31316
6
Bottom Case
LB06205
1
LB06205
1
1
LQ05142
1
2
LP13171
2
No.
Part Name
1
Bind Screw
2
3
26
Part Name
10
Headcover Assy
LB06207
1
LB06207
1
27
Joint Hose
LQ05142
11
Gasket A
LQ01043
2
LQ01043
2
28
Clamp
LP13171
12
Gasket B
LQ01042
2
LQ01042
2
OPTION
13
Piston Assy
LB03132
2
LB03132
2
29
14
Spring
LP30585
2
LQ02743
2
15
Spring Seat
LP12155
2
LP12155
2
16
Housing Assy
LB03184
2
LB03184
2
17
Rubber Plug
LQ03775
1
LQ03775
1
18
Rear Cylinder
LB02443
2
LB02443
2
19
Insulation Bush
LP10355
4
LP10355
4
20
Screw 5 x 20
LP12599
4
LP12599
4
21
Field Core Assy P
LB04901
1
LB04905
1
Field Core Assy Q
LB05126
1
LB05134
1
Field Core Assy E
LB05099
1
LB05048
1
Hose Assy
LA97475
LA97475
9
LB03185
LB03185
Exploded View
LA-100/ LA-120
1
2
3
29
4
5
6
7
27
24
25
8
28
30
32
33
26
12
10
11
9
23
22 20
21
18
19
14
15
16
17
13
34
36
35
38
31
30
Parts List
No.
Part Name
Q'ty
No.
LP30581
2
27
LP30635
4
2
LQ03101
2
Field Core Assy E
LB04180
1
LB30769
1
28
Endcap
LQ03108
LQ02605
2
LQ02605
2
29
Hex Bolt
LP31316
Upper Case
LB03763
1
LB03763
1
30
Rubber Feet
LQ03089
6
LQ03089
6
Bind Screw UL
LP30581
8
LP30581
8
31
Cable Assy UK
LB05341
1
LB05341
1
Torx Screw CE
LQ03082
8
LQ03082
8
Cable Assy D
LB05307
1
8
Gasket C
LQ03091
1
LQ03091
1
Cable Assy A
9
Cable Assy J
LQ01037
1
LQ01037
1
Cable Assy UL
LB04770
1
LB04770
1
LA100
Q'ty
1
Bind Screw
LP30581
2
2
Seal Washer
LP30635
4
3
Filter Cover Gasket
LQ03101
4
Filter Cover
LB30769
5
Filter Element
6
7
LA120
Part Name
Field Core Assy P
LA100
Q'ty
LB04855
1
LA120
Q'ty
LB04909
1
LB04280
1
1
LB04171
1
1
LQ03108
1
12
LP31316
12
Field Core Assy Q
LB05307
1
LB05220
1
Hex Bolt
LP31316
12
LP31316
12
10
Headcover
LB03834
1
LB03834
1
11
Gasket A
LQ01399
3
LQ01399
3
32
Nozzle Seal
LQ02598
2
LQ02598
2
12
Gasket B
LQ01400
3
LQ01400
3
33
Air Tank Assy
LB03771
1
LB03771
1
13
Piston
LB03779
3
LB03779
3
34
Joint Hose
LQ03096
1
LQ03096
1
14
Piston Sub Assy
LB03780
3
LB03780
3
35
Bottom Case
LB03762
1
LB03762
1
15
Inlet Valve
LQ03230
3
LQ03230
3
36
Cushion
LQ03112
1
LQ03112
1
16
Valve Retainer A
LP11548
3
LP11548
3
37
Rubber Plug
OPTION
Hose Assy
38
17
CS Ring
LP12948
3
LP12948
3
18
Spring Seat
LP10357
3
LP10357
3
19
Spring
LQ03117
3
LQ03117
3
20
Housing
LB03778
3
LB03778
3
21
SE Ring
LP12475
6
LP12475
6
22
Valve Retainer B
LP13735
6
LP13735
6
23
Outlet Valve
LP10359
6
LP10359
6
24
Screw 5 x 20
LP12599
6
LP12599
6
25
Insulation Bush
LP10355
6
LP10355
6
26
Rear Cylinder
LB01415
3
LB01415
3
LB04119
10
LB03965
LB01070
LERCHENSTR.47,71144 STEINENBRONN, GERMANY
TEL(07157)22436, 22705 FAX(07157)22437
11
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