Additel 927 Operating instructions

927
Maintenance and Repair Manual

Additel Corporation
[Version No.: 1408V2.0]
927 Maintenance and Repair Manual

Contents
1.Maintenance Instructions .............................................................................................................01
1.1 ................................................................................................................................................01
1.2 ...............................................................................................................................................................02
2.Repair Instructions .......................................................................................................................03
2.1 ........................................................................................................................................................04
2.2 ....... ...............................................................................................................................................06
2.3 Isolation valve ................................................................................................................................................................09
2.4 .....................................................................................................................................................................11
Pre-pressure screw press
Pump Cleaning
Pre-pressure piston
High-pressure piston
Pump body

01
Maintenance and Repair Manual of ADT927
Note:
Maintenance and repair must only be performed by authorized personnel.
The pump needs to be maintained as needed.
1. Maintenance Instructions:
①
Maintenance and/or repair of the ADT925 must be performed with the media completely drained.
Pre-pressure screw press
Rotate the pre-pressure screw press counterclockwise until it is all the way out, as shown in picture1.1.1 Clean the lead threads
and apply lubricating grease. Then turn the pre-pressure screw press all the way in and all the way out several times to ensure
smooth operation.
1.1
Picture 1.1.1

02
①
②
③
1.2 Pump cleaning
The inside of the pump needs to be cleaned regularly, or else contaminants may cause damage to the sealing system and could
potentially contaminate the device under test.
Tight the two plugs on the connection ports to make sure there is no leakage.
Open the Release valve and the isolation valve, then rotate the pre-pressurization handle and the high-pressure pressurization
and fine pressure adjustment handle all the way in. Please refer to picture 1.2.1.
Open the drain valve to drain all the liquid media out. Then disassemble the release valve needle, release valve base and the
upper cover. Please refer to picture 1.2.2
Release valve needle
Release valve base
Upper cover
Drain valve
Picture.1.2.2
Release valve
Isolation valve
Pre-pressurization
handle
Plugs
High-pressure and fine
adiustment handle
Picture.1.2.1

03
④
⑤
2. Repair Instructions:
Use detergent to clean the pump. The detergent needs to be compatible with NBR, UPVC, brass and stainless steel. Rotate the pre-pressurization
screw press in and out several times to clean the inside of the pump. Next, blow-dry the pump (note: the pressure of the plastic chamber should
not exceed 100kPa).
Reassemble all parts and ensure operation.
High-Pressure and fine
adjustment piston
Pre-pressurization
piston
Connection ports
components
Isolation valve

04
①
②
③
④
2.1 Pre-pressurization piston
Please refer the “Pump cleaning” part of maintenance section to drain the media. Turn the pre-pressurization handle out to the
middle position.
Use a 4 mm socket head wrench to remove the three lock bolts on the bottom of the pump.
And use a 24 mm wrench to unscrew the screw nut, as shown in picture 2.1.1.
Pull out the pre-pressurization piston from the pump chamber, as shown in picture 2.1.2.
Please refer to picture 2.1.2 to exchange the damaged parts of the piston.
1
2.Screw nut
Picture.2.1.1
6
47
5. Pre-pressurization
piston
Picture.2.1.2
3. Pre-pressurization
handle

05
⑤ Please
⑥
⑦
refer to picture 2.1.3 to remove the supporting foot, end cover, plastic liquid reservoir and parts 12 and 13. Use a 22 mm wrench
to remove the pre-pressurization cylinder and part 14.
Exchange the damaged parts, and reassemble the parts in reverse order.
Pre-pressurization piston parts list.
10.Plastic liquid reservoir
9.End cover
1312
8.Supporting foot
11.Pre-pressurization
Cylinder Need to add
thread-locking adhesives
Picture.2.1.3
12
14

06
⑧ Please note: The threads of the pre-pressurization cylinder need to have thread-locking adhesive applied (LOCTITE 277). After
securing it tight to the pump body the adhesive will need to solidify for at least 24 hours before reassembling the other parts. .
2.2 High-pressure and fine adjustment piston
① Refer the “Pump cleaning” section to drain out all the liquid in the pump.
② Rotate the High-pressure and fine adjustment piston handle all the way out. Use a wrench to remove part 1, part 2 and the handle as
as shown in picture 2.2.1.
No.
1
2
4
5
6
7
8
9
10
11
12
13
14
Part No.
1220116503
1653000015
1220116008
1220116009
1220116010
1653000019
1220115004
1220115044
1611300112
1220121126
1220116505
1220115033
1220116504
1220116509
1611300093
1611300088
1611300078
1710300261
Name
Lock screws
Screw nut
Handle
Handle spacer
Handle axle
Handle cover
Round pin
Retainer ring
Pre-pressurization piston
Star shape sealing ring
Guide ring
Supporting foot
End cover
Plastic liquid reservoir
Pre-pressurization Cylinder
O-ring
O-ring
O-ring
Quantity
3
1
1
1
1
1
1
2
1
1
2
1
1
1
1
2
1
1
3

07
③ Use a 24 mm wrench to remove the lock nut and rotate the high pressure piston lead screw manually until it can be pulled out. Please
refer to picture 2.2.2.
④ Please refer to picture 2.2.3 to exchange all the damaged parts.
3. High-pressure and
fine adjustment handle
12
5. High-pressure
piston lead screw
4. Lock nut
Picture.2.2.1 Picture.2.2.2
5. High-pressure
piston lead screw 8. Axle sleeve 76
Picture.2.2.3

08
Picture 2.2.4
No.
1
2
3
4
Ording No.
1710300178
1710300016
QB002.02
1220115039
Name
Acorn nut
Flat washer
Handle
Lock nut
Quantity
1
1
1
1
⑤ Use a 18 mm wrench to unscrew the high pressure piston cylinder as shown in picture 2.2.4.
⑥ Exchange all the damaged parts and reassemble them back in reverse order.
Please make sure that part 9 is in the groove when reassembled.
⑦ High pressure and fine adjustment piston parts list.
10. High pressure
piston cylinder
9

09
No.
5
6
7
8
9
10
Ording No.
1220115038
1220210076
1611300025
1220115040
1611300051
1220115037
Name
High pressure piston lead screw
Sealing ring
O-ring
Axle sleeve
O-ring
High pressure piston cylinder
Quantity
1
1
1
1
1
1
2.3 Isolation valve
① Please refer to the “Pump cleaning” section to drain out all the liquid in the pump.
② Use a 90-degree needle nose pliers to remove the valve cover and then unscrew the isolation valve, as shown in the picture below.
1
2
3.Isolation valve needle
4. Valve cover
5
Picture 2.3.1

10
③ Use needle nose pliers to remove the copper bush, as shown in picture 2.3.2.
④ Please exchange all the damaged parts, and reassemble the parts in reverse order.
⑤ Isolation valve piston parts list.
No.
1
2
3
4
5
6
7
8
Ording No.
1611300029
1220113022
1220113024
1220113023
1650700039
1220113021
1611300056
1611300008
Name
O-ring
Retainer ring
Isolation valve needle
Valve cover
Isolation valve handle
Copper bush
O-ring
O-ring
Quantity
1
1
1
1
1
1
1
1
8
7
6. Copper bush
Picture 2.3.2

11
2.4 Pump body
① Remove the release valve needle manually, and use an 8 mm wrench to unscrew the release valve base. Then, remove the drain
valve, as shown in picture 2.4.1.
No.
2
3
4
5
6
7
Ording No.
1220113042
1650700037
1220115002
1611300054
1220115001
1611300173
1611300024
1220115036
Name
Release valve needle
Release valve handle
Release valve base
O-ring
Upper cover
Rubber gasket
O-ring
Drain valve
Quantity
1
1
1
1
1
1
1
1
④ Please exchange all the damaged parts, and reassemble the parts in reverse order.
⑤ Isolation valve piston parts list.
7. Drain valve
6
1.Release valve needle
2. Release valve base
6
3
4. Upper cover
5
Picture 2.4.1
1