Installation guide

No. Part Name LA-28B Q'ty LA-45B Q'ty No. Part Name LA-28B Q'ty LA-45B Q'ty
1 Bind Screw LP30581 1 LP30581 1
2 Seal Washer LP30635 2 LP30635 2
3 Filter Cover Gasket LQ02607 2 LQ02607 2
4 Filter Cover LQ02575 1 LQ02575 1
5 Filter Element LQ02605 1 LQ02605 1
6 Upper Case LB02937 1 LB02937 1
7 Bind Screw UL LP30581 4 LP30581 4
Torx Screw CE LQ03082 4 LQ03082 4
8 Gasket C LQ02601 1 LQ02601 1
9 Hex Bolt LP31316 4 LP31316 4
10 Headcover LQ02567 1 LQ02063 1
11 Gasket A LQ01043 1 LQ01043 1
12 Gasket B LQ01042 1 LQ01042 1
13 Piston LA70625 1 LB03132 1
Piston Sub Assy LA70626 1 LB03133 1
Inlet Valve LP30916 1 LP30916 1
Valve Retainer A LP11548 1 LP11548 1
CS Ring LP12948 1 LP12948 1
18 Spring Seat LP12155 1 LP12155 1
19 Spring LP30620 1 LQ02743 1
20 Housing LB03184 1 LB03184 1
SE Ring LP12475 2 LP12475 2
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
27 Field Core Assy P LB01536 1 LB03466 1
Field Core Assy Q
Field Core Assy E LB04038 1 LB04028 1
28 Endcap LQ01052 1 LQ02892 1
29 Hex Bolt LP31316 4 LP31316 4
30 Rubber Feet LQ04256 4 LQ04256 4
31 Cable Assy UK LB05341 1 LB05341 1
Cable Assy D LB05307 1 LB05307 1
Cable Assy A
Cable Assy J LQ01037 1 LQ01037 1
Cable Assy UL LB04770 1 LB04770 1
32 Nozzle Seal LQ02598 1 LQ02598 1
33 Air Tank Assy LB02987 1 LB02987 1
34 Joint Hose LQ02602 1 LQ02602 1
35 Bottom Case LB02938 1 LB02938 1
36 Cushion
37 Rubber Plug
OPTION
38 Hose Assy
LA97475
LB03185
22
21
17
16
15
14
7
1
2
3
4
5
6
7
8
18
19
13
14
15
16
17
9
12
11
10
30
31
32
33
34
30
35
38
20
23
22
21
26
25
27
28
29
24
Exploded View
LA-28B/ LA-45B
Parts List
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)
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 it 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 on to the Upper Case 6 , then tighten with the Bind Screw(s) 1 .
6 Filter Element replacement Period
It is recommended that the Filter Element(s) is cleaned or replaced with a 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.
3. Replacement of Piston Set Assembly
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 into the slot(s) at the
edge of the Headcover 10 and twist the screwdriver gently to open.
3 Take out the Piston Set Assembly(s).
4 Replace all Piston Set Assemblies, 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 Assembly(s) into the Pump Body. Position 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 tighten
them fully.
6 Before putting the Upper Case 6 back, start the blower and check if there is any
air leakage around the Headcover 10 or the Nozzle Seal(s) 33 by briefly blocking the air outlet.
If there is an air leakage around the Headcover 10 , re-position Gasket A 11 and
Gasket B 12 then re-fasten the Hex Bolts 9 . If there is an air leakage around the Nozzle
Seal(s) 33 check if the nozzle seal is properly positioned on the airtank 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
and alternately.
8 Piston Set Assembly replacement period
It is suggested that the Piston Set Assembly is replaced
every 12 to 24 months 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.
4
Groove
Teflon Seal
5. Maintenance
(
Refer to the sketches on the next page
)
Piston
25
31