Nova Precision Midi Bedienungsanleitung

HOW TO SERVICE NOVA CHUCKS



SAFETY WARNING

Safety glasses must be worn when dealing with snap rings on the

chucks. Snap rings can for fly off in any direction. Use caution and

wear safety glasses.

 Note: Remove jaws or any other accessories attached on the chucks

before disassembling the chucks. Wipe/blow off visible dust from the

chucks before disassembly.

Preparation:

Before starting the disassembly, lay a disposable thick towel or cloth on top of the

working area as the disassembly process can get messy. The towel will protect the

chuck body during this process.

This guide outlines the disassembly, cleaning and reassembly for:

 Precision Midi

 G3

 SuperNOVA2

 Titan

p.1

SuperNova2 – Disassembly

Tools Required:

1. External Circlip Pliers

2. Flat Head Screw Driver

3. Disposable Rag

STEPS DESCRIPTION IMAGE

Place chuck face down. The jaw slides can

be at any position.

Use the external snap ring plier to remove

the retaining ring (as shown in the image).

Continues to next page…

p.12

SuperNova2 – Disassembly

STEPS DESCRIPTION IMAGE

Once retaining ring is removed, the

backing plate can be removed from

chuck body.

Option 1: When removing the

backing plate, use two flat-head

screw drivers to lift it straight out from

the chuck body.

Option 2: Or thread an insert into the

chuck (if chuck is an Insert type – not

direct thread) and use a soft mallet to

give it a sharp impact. This would

release the backing plate from the

chuck body.

NOTE: This step might be tricky as

the backing plate can be stuck onto

the chuck body with old lubricants.

Remove the pinion gears by pushing

them outwards.

This may require a bit of force as dirt

can get caught in the gaps.

Remove the scroll ring from the

chuck body. This should just slide out

but, if stuck, might need a bit of

tapping.

Continues to next page…

p.13

SuperNova2 – Disassembly

continued

STEPS IMAGE

Mark with a permanent marker

before sliding the jaw slides out

since each jaw slide will have a

corresponding slideway to it. #1

jaw slide fits where there is a

dimple.

After removing scroll ring, the jaw

slides will be free to slide out of the

chuck body.

Make sure you have all parts:

1. Chuck Body

2. Pinion Gears

3. Backing plate

4. Scroll Ring

5. Retaining ring (EC48)

6. Jaw Slides #1-4

p.14

SuperNOVA2 – Cleaning

STEPS DESCRIPTION IMAGE

Using a disposable cloth/ towel to

wipe off much of the visible dirt as

possible on each part.

NOTE: Scroll ring will be used as an

example but the procedure should be

carried out on all the main parts of the

chuck (i.e. scroll ring, jaw slides and

chuck body).

To remove built up grime, apply a

degreaser/rust remover (e.g. WD40)

on each part. Leave on for at least two

hours (or as directed on product

instructions).

Use a wired brush to remove the rust

and grime.

Make sure to run the brush in between

the slits of the scroll ring and jaw

slides to get to the hard to clean areas.

Use a clean disposable cloth/ towel to

wipe the part after brushing.

The parts should feel dry and

shouldn’t leave any sticky residue on

your fingers.

p.15

SuperNova2 – Reassembly

STEPS DESCRIPTION IMAGE

Before reassembling the chuck, apply

a generous amount of lubricant to all

surfaces that come in contact with

other parts.

We recommend applying the lubricant

(before assembly) on the inner

surface of the chuck body as well as

the jaw slide slots . Be sure to apply

lubricant on spiral teeth side.

Reinsert the jaw slides back into their

original slots.

NOTE: The jaw slide number should

be counting up from 1~4 in the

clockwise direction (looking from

front)

Flip the chuck on its face and position

the jaw slides to form a square in the

centre as shown.

Continues to next page…

p.16

SuperNova2 – Reassembly

STEPS DESCRIPTION IMAGE

Slide the scroll ring back into the

chuck body. Once in place, rotate the

scroll ring back and forth until it

engages with the jaw slides.

You should feel the scroll rings

engage as it drops into place,

exposing the slot where the snap ring

will fit.

NOTE: Make sure that the jaw slides

do not move before sliding the scroll

ring in.

Apply a generous amount of lubricant

on the geared side of the scroll ring.

Insert pinion gears back into the

chuck body as shown in the image.

Continues to next page…

p.17

SuperNova2 – Reassembly

continued

STEPS DESCRPTION IMAGE

Rotate scroll ring with chuck key to

check that jaw slides correctly match

up at centre.

If the jaw slides match up at centre by

forming a square in the middle, put the

backing cover on.

If the scroll ring is found hard to turn

(not smooth), possible causes are:

1. Pinion gears are binding

2. Not enough lubrication

3. Defective parts

Once the back plate is in place, put the

snap ring back on to finish.

Make sure the snap ring is correctly

installed in its groove.

p.18

Chucks Parts List

SKU Thread

Size PARTS LIST

SKU 48111

Precision Midi

Direct Thread

1” x 8 TPI

1. 48100 Chuck Bod

2. 48116 Scroll Rin

23051

23052

23053

23054

Jaw Slides

4. EC48 36mm External

Circlip

SKU 48232

G3 Direct Thread 1” x 8 TPI

1. 48206 (Insert)

48207 (Direct) Chuck Body

2. 23082 Scroll Ring

23051

23052

23053

23054

Jaw Slides

4. EC48 External Circlip

SKU 48202

G3 Insert Type M38 x 3.5

SKU 23062

SuperNOVA2

Direct Thread

1 ¼” x 8tpi

1. 23049 (Insert)

23061 (M33) Chuck Body

2. 23048 Back Cover

3. 23082 Scroll Ring

23051

23052

23053

23054

Jaw Slide #1~#4

5. 23081 Pinion Gear

6. EC48 External Circlip

SKU 23055

SuperNOVA2

Insert Type

M38 X3.5

SKU 13060 –

Titan III

Direct Thread

1 ¼” x 8tpi

1. 13038 (Normal)

13039

(

Europe

)

Chuck Body

2. 13003 Back Cove

3. 13035 Scroll Rin

1339011

1339012

1339013

1339014

Jaw Slide #1~#4

5. 13036 Pinion Gear

6. EC48 External Circlip

7. 13004 Fastening Screw

8. LSM4N Position Screw

SKU 13061 –

Titan III

Europe Version

Direct Thread

M33 x 3.5

p.26

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