Additel 927 Mode d'emploi

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

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

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

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

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.

2.Screw nut

Picture.2.1.1

5. Pre-pressurization

piston

Picture.2.1.2

3. Pre-pressurization

handle

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

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.

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

Quantity

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

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

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