Service RTL 60-100 (en)

Gardner Denver Wittig GmbHJohann-Sutter-Straße 6+8D-79650 SchopfheimTelefon +497622/394-0Telefax +497622/394-200E-mail: [email protected]://www.gdwittig.de

Assembly Manual

RTL 60-100Rotary Vane Compressor

MA-16.01.1 • GB • 08/02

Table of Contents

MA-16.01.1

GB 08/02

1. Safety Instructions and Hazard Alerts

1.1 Use for Intended Purpose

1.2 Acceptance Test and Inspection1.3 Hazard Alerts and Symbols

1.4 Safe Working1.5 Hazardous Materials

2. Dismantling the Compressor

2.1 Dismantling of Parts for Replacement of the Rotor Blades2.2 Complete Dismantling of the Compressor

3. Inspection and Cleaning of the Compressor

3.1 Replacing the Housing, the Housing Cover, the Seals and the Non-return Valve

3.2 Cleaning the Dismantled Compressor

4. Assembly of the Compressor

4.1 Assembling of the Radial Shaft Seals and the O-Ring into the housing covers4.2 Assembling the Bearing Inner Raceways4.3 Assembling the Rotor and Rotor Blades

4.4 Assembling the Housing Cover (A and B side)4.5 Measuring the Total Clearance

4.6 Assembling Cylindrical Roller Bearing (A side)4.7 Mesuring and Adjusting End Clearance (A side)

4.8 Assembling Cylindrical Roller Bearing (B side) and Measuring End Clearance4.9 Assembling the Fan Wheel4.10Assembling the Fan Cover

4.11Assembling the Shaft Cover, Guard and Cover Plate4.12Assembling the Non-return Valve

4.13List of Special Tools

After Sales Service

If you have any questions or require information, please contact our service department (for addresses and phone numbers, please see After Sales Service).

Other applicable documents:

Operating Instructions RTL 60-100: BA-16.01.0-GBReplacement Parts List RTL 60-100: ETL-16.01.0-EG

1 Safety Instructions and Hazard Alerts

MA-16.01.11-1

GB 08/02

1. Safety Instructions and Hazard Alerts

1.1 Use for Intended Purpose

The compressor must not be used for any purposeother than compressing filtered air. Any other use orany use in excess of the use described above is notintended.

Use for the intended purpose includes compliance withthe operating data specified in the operating instruc-tions and the maintenance instructions.

1.2 Acceptance Test and Inspection

The machine is not subject to any general acceptanceor inspection obligation.

Any special provisions in effect at the site of the rotarycompressor must be observed by the owner.

The safety instructions and accident prevention regu-lations of the local employer's association must beobserved.

1.3 Hazard Alerts and Symbols

WARNING indicates potential risks of personalinjury. Safety regulations require strict compli-ance with the instructions identified by thissymbol. All users are required to familiarizethemselves with the respective safety instruc-tions.

CAUTION indicates rules, regulations andinstructions which prevent damage to themachine.

This symbol indicates information of particularsignificance to the operator of the machine.

This symbol indicates that that no unauthorizedperson is allowed to enter the area.

Risk of burns!This symbol indicates a hot surface.

This symbol indicates that hearing protectionshould be worn.

This symbol indicates that environmental pro-visions must be observed.

1.4 Safe Working

The compressor is a state-of-the-art productand satisfies all accepted safety rules andregulations. Despite this, the compressor inuse can create certain hazards to the healthor life of the operator or third persons or to themachine or other objects. Therefore, the fol-lowing instructions must be observed.

Anyone working on the compressor muststudy the Operating Instructions, especiallythe chapter on safety, before commencingwork on the machine.

The compressor may only be used to com-press air. Other gases are not allowed.

• Never use the compressor if it does not satisfy thetechnical requirements. Never use the compressorfor any other but the intended purpose. Immediately repair any defect which reduces thesafety of the machine.

• Never make any changes, add to or remove partfrom the compressor which may reduce its safety,unless after previous consultation with the supplierof the compressor.

• Observe all warnings at the compressor and ensurethat all warnings are in place and legible.

• The compressor may only be operated withmounted intake and delivery connections.

• Work on the compressor must only be performed byauthorized technical personnel.

• Work on electrical equipment (drive of the compres-sor) must only be performed by properly qualifiedelectrician and in compliance with the appropriaterules.

• Carry out work on the machine when it is at stand-still.

• Protect the drive against starting before commenc-ing work on the compressor (e. g., by removing thefuses).Make sure that the drive is electrically isolated.

• Relieve the compressor to atmospheric beforebeginning to work.

1 Safety Instructions and Hazard Alerts

1-2MA-16.01.1

GB 08/02

Close the shutoff valve in the intake and deliverylines. If overpressure remains, vent the compressormanually at the bleeding valves. Take the reading of the pressure gauge

• Remove the guard on the drive only when themachine is not running.

• Remove the guard protecting from accidental con-tact of the machine and the pressure line only whenthey are cold.

• Ensure that all guards are installed before themachine is started.

• Wear hearing protection when the compressor isrunning and you are less than 5 m away from it.

• Familiarize yourself with fire alarms and fire fightingconditions.

Environmental protection requires that any liquid draining during maintenance work, e. g. cooling water or cooling oil, be collectedand disposed of as required by the respectiveregulations.

1.5 Hazardous Materials

Before you call our service personnel it is nec-essary for safety and ecological reasons toindicate and declare all hazardous materials(e.g., pursuant to EC directive RAL 671 548(IEWG) on or in the compressor. If no decla-ration is made, it is assumed that there are nosuch substances in the compressor.

2 Dismantling the Compressor

MA-16.01.12-1

GB 08/02

2. Dismantling the Compressor

2.1 Dismantling of Parts for Replacement of the Rotor Blades

When the rotor blades have worn to the permitted limit (max. 10 mm), the rotor blades must be replaced. For this the compressor must partly be dismantled. The dismantling procedure is described below.

• Remove the compressor (from the truck).

Warning!The compressor must be secured against unautho-rized starting and automatic rotation.

Caution!Fix the compressor suitably to ensure that you can remove it without hazard.

• Remove non-return valve (Fig. 2.1/1) and gasket from the delivery socket.

• Turn the compressor about 45° round the rotation axis. The delivery socket should be down side. Fix the compressor suitably.

• Remove fan covers (Fig. 2.2/1, Fig. 2.2/2) on both sides of the compressor. For this, turn out the 8 fillister head screws (Fig. 2.2/3) with lock was-hers. Remove the fan covers forward or on the rear above the rotor shaft.

Note!The arrow (Fig. 2.2/4) shows the delivery socket of the compressor.The nameplate (Fig. 2.2/5) contains machine data and the manufacturer's number. This information is very important if you need assistance from the Gardner Denver Wittig service department.

Fig. 2.1 Removing the non-return valve

Fig. 2.2 Removing the fan covers

• Remove bolt with nut (Fig. 2.3/2) of fan wheel (Fig. 2.3/1) on one side of the compressor and pull the fan wheel off the rotor.

• Remove feather key (Fig. 2.3/3).• Turn rotor shaft until the feather key groove is

down side.

Fig. 2.3 Removing the fan wheel

1

M12; SW19

B sideA side

1

M12; SW10

0

0

2

3

5

4

B sideA side

1

0

0

2

3

M8; SW6


2-2MA-16.01.1

GB 08/02

• Unscrew fillister head screws (Fig. 2.4/2) and remove cover plate (Fig. 2.4/1) including bearing sleeve carefully. Do not damage the radial shaft seals in the cover.

Caution!If radial shaft seals are damaged, they must be replaced including washers. End clearance has to be adjusted (see Chap. Assembly).Refill bearing grease if necessary.

Note!For radial shaft seals, washers and cover, see Replacement Parts List ETL-16.01.1 EG.

Fig. 2.4 Removing the housing cover

• Slowly pull rotor blades (Fig. 2.5/1) from the rotor slots. Turn the rotor gently.Each slot holds two blades.If necessary, you can pull out the rear blade for-ward with a bent wire.

Number of rotor blades:RTL 60: 12 short rotor bladesRTL 60: 6 short and 6 long rotor bladesRTL 60: 12 long rotor blades

Caution!Do not damage the contact surfaces of the radial shaft seals.

• New rotor blades can be installed after cleaning the housing and the rotors, (see chapter Cleaning and Assembly).

Fig. 2.5 Taking out the rotor blade

2.2 Complete Dismantling of the Compressor

If the rotor blades are worn or the cylindrical roller bearing or the radial shaft seals must be replaced, the compressor must be fully dismantled.

The steps described in the chapter Dismantling must be carried out for both front faces (A side and B side). Remove the housing covers on both sides as described.

Mark both housing covers, the seals and the rotor as belonging to A side (gear side) or B side (operator side). Make sure that the parts are not installed on the wrong side. If a part should be installed on the wrong side, the axial fixing of the rotor changes. This can cause damage to the compressor.

B sideA side

1

0

0

2

M12; SW10

B sideA side

1


MA-16.01.12-3

GB 08/02

The orientation of the rotor when assembled must be the same as before dismantling. Otherwise the end clearance may not be the same and the compressor is damaged.

Note!The end clearance must be measured and adjusted after dismantling and re-assembly (see chapter Assembly/Setting the End Clearance).

• Slowly pull part of rotor (Fig. 2.1/1) from housing. Make certain that the housing is not damaged by scratches or grooves.Lift the rotor clear of the housing and put it down on a soft base.

Fig. 2.1 Taking out the rotor

Remove cylindrical roller bearing• Unscrew fillister head screws (Fig. 2.2/1) (M8).• Press out bearing sleeve (Fig. 2.2/4) with two

screws (M8) (Fig. 2.2/2).• Take out the cylindrical roller bearing (Fig. 2.2/5).• Carefully knock out the radial shaft seals in the

bearing sleeve and the housing cover (Fig. 2.2/3).

Caution!Do not damage the housing cover and the bearing sleeve.Knocked-out radial shaft seals must not be installed again.

• Take out the washers between the cylindrical roller bearing and the radial shaft seal which are located in the housing cover. Mark according to A and B side. Exchange damaged washers.End clearance is determined by the thickness of the washers (see Chap. Assembly).

Fig. 2.2 Remove cylindrical roller bearing

B sideA side

1

1

2

M8

3

45

3


2-4MA-16.01.1

GB 08/02

3 Inspection and Cleaning of the Compressor

MA-16.01.13-1

GB 08/02

3. Inspection and Cleaning of the Compressor

3.1 Replacing the Housing, the Housing Cover, the Seals and the Non-return Valve

Note!After replacing the housing, the housing cover, the seals, the radial shaft seals and bearings the end clearance must be adjusted again (see chapter Assembly/Setting the End Clearance).

• The housing and the housing cover must be free from damage.The faces of the housing cover must be free from traces left by rotor friction.

• During the repairs, the housing bore can be treated with a sand blast.- Apply the blast in axial direction of the bore.- Ensure an angle of attack of approx. 15...30°

between the blast nozzle and the housing sur-face.

- The distance between the nozzle and the hous-ing surface should be approx. 15 cm.

- Use corundum 0.5...1.0 mm grain size.- Surface grade after treatment should be

Rz 10...18.• Inspect roll barrel contact faces, roll barrels, axial

flanges of the bearings for wear. Look for the effect of strong heat on parts, which indicates wear.

• Undamaged bearings can be installed again, all old lubricant must be removed.

• Inspect the side faces of the radial shaft seals for wear and damage. Replace seals if necessary. The radial shaft seals must be replaced after each full disassembly of the compressor.

• For this, carefully knock the old radial shaft seals out of the housing covers. Knocked-out radial shaft seals must not be installed again.

• Assemble the new radial shaft seals with a hand press and a suitable installer until they seat fully in the hole (see chapter Assembly). Check the seals for firm seating.

• Inspect the non-return valve. If necessary, turn over the contact faces on the housing and the valve plate to surface grade Rz 6.3.

• The valve plate of the non-return valve must slide easily. Apply a light film of heat-resistance sliding paste to the straight pin.

Caution!The paste must not enter the compressor space!

3 Inspection and Cleaning of the Compressor

3-2MA-16.01.1

GB 08/02

3.2 Cleaning the Dismantled Compressor

• Remove all carbon dust and dirt.• Clean the cooling fins on the housing and the

housing covers.• Wash all parts except the housing bore with cold

cleaner.• The housing bore must be wiped with a clean,

dry piece of cloth.

• Remove all old and spent lubricating grease from the cylindrical roller bearings and the bearing spaces in the housing covers; grease in the com-pressor space destroys the rotor blade.

• Inspect the rotor slots and the slot bottom for con-tamination and clean thoroughly if necessary.Any debris or other contamination in the rotor slot causes failure of the compressor.

Caution!Make sure that no lubricating grease enters the com-pressor space, grease destroys the rotor blade.

4 Assembly of the Compressor

MA-16.01.14-1

GB 08/02

4. Assembly of the Compressor

Note!For replacement parts of Compressor RTL60-100, please refer to Replacement Parts List ETL-16.01.1 EG.

4.1 Assembly of the Radial Shaft Seals and the O-Ring into the housing covers

• Press the first radial shaft seal (housing material: aluminum) (Fig. 4.1/2) in housing covers (Fig. 4.1/1) with special tool No. 3 060 80.Note that the two bores in the radial shaft seal must be positioned exactly over the threaded bores in the housing cover.Note!Apply a thin film of Alu-Slip (GD article No. 523 009 00) to the outer radial shaft seal (Fig. 4.1/2).

Caution! Alu-Slip must not enter the compressor space, the bearings or the seal lips of the radial shaft seals during subsequent assembly as this chemi-cal causes damage to the machine.

• Secure the radial shaft seal with fillister head screws and washers (Fig. 4.1/3).

• Assemble the second radial shaft seal (Fig. 4.1/4) with special tool No. 3 060 13.

Repeat the same activities for both housing covers.

Caution! Make sure of correct position of the sealing lips (see Fig. 4.2)Use only a hand press to assemble the seals in the bores of the setting bushes.The radial shaft seals must not become skewed or the sealing lips be damaged.

• Assemble O-ring (Fig. 4.1/5) in the housing cover groove.

Abb. 4.1 Assembling the radial shaft seals

Abb. 4.2 Position and assembly of the radial shaft seals

• Assemble radial shaft seal (Fig. 4.3/2) in both bearing sleeves (Fig. 4.3/1) with special tool No. 8 000 96.

Caution! Make sure of correct position of the sealing lips (see Fig. 4.3/4)

• Grease O-ring (Fig. 4.3/3) gently and fit into the groove of the bearing sleeve (Fig. 4.3/1).

Abb. 4.3 Assembling the radial shaft seal in the bearing sleeve

1

4

3

2

5

3 060 13.4-2 3 060 80.3-2

1

2

8 000 96.3-3

43

0


4-2MA-16.01.1

GB 08/02

4.2 Assembling the Bearing Inner Raceways• Heat bearing inner raceways (Fig. 4.4/2) to 130°C

and assemble them in full contact on the rotor shaft on both sides of rotor (Fig. 4.4/1). Using tube (DIN 2448, 57 mm OD, 2.9 mm wall thickness, length approx. 350 mm), drive them in full contact with the rotor.

• Clean rotor: The slots for the vanes must be free from any deposited material. Carefully clean with fine-grain emery and compressed air, if neces-sary.

Abb. 4.4 Assembling the bearing inner raceways

4.3 Assembling the Rotor and Rotor Blades• Clean rotor and housing with oilfree compressed

air. The housing bore must be wiped with a clean, dry piece of cloth.

Note!Turn the compressor about 45° round the rotation axis. The delivery socket should be down side. Fix the com-pressor suitably.

• Measure the length of the housing. Face-to-face: 480.39 mm. If the housing is shorter, place a required number of seals (each 0.04 mm) to the housing cover, before mounting it, to ensure that the length is as prescribed.

• Put the rotor (Fig. 4.5/1) into the housing.• Push split rotor blades (Fig. 4.5/2) in the rotor

slots with the rounded edges pointing radially out-wards (see Fig. 4.6). Make certain that the rotor blades do not fit askew at TDC (top dead center), risk of breakage!

Number of rotor blades:RTL 60: 12 short rotor bladesRTL 60: 6 short and 6 long rotor bladesRTL 60: 12 long rotor blades

Note!For RTL 80 model: Always assemble the blades in alternating fashion: 1st slot short/long, 2nd slot long/short; 3rd slot short/long. etc.The rotor blades must move smoothly in the slots and must not jam.Use only original replacement parts from Gardner Denver Wittig. Make sure you use the right length blade. Check the length dimension on the packing.

Note!If length must be adjusted: Shorten the blade to the required length by rubbing with emery cloth at right angles to the running edge.

Abb. 4.5 Assembling the rotor and rotor blades

Abb. 4.6 Assembly direction of rotor blades (rounded edges pointing radially outwards)

1

2

2

1

2

B side

A side


MA-16.01.14-3

GB 08/02

4.4 Assembling the housing cover (A and B side)• To protect the radial shaft seals in the housing

cover, slip assembly sleeve (special tool 306013) on the rotor shaft (Fig. 4.7/1).

• Fix prepared housing covers (Fig. 4.7/2) with with 4 fillister head screws (hand-tight) (Fig. 4.7/3) on housing.

Caution!If the sleeve is not installed, the radial shaft seals can be damaged.Note! Apply Alu-Slip (GD article no. 523 009 00) to all screw threads.Caution! Alu-Slip must not enter the compressor space as this will destroy the rotor blades.

• Assemble straight pin (Fig. 4.8/1) on intake side and taper pin (Fig. 4.8/2) on discharge side in special bores (Fig. 4.7/3 and 180° displaced) of the housing with light blows of a hammer up to the stop. Make sure that the internal thread points outward and is not damaged so that the pin can be removed again after assembly.

• Tighten the fillister head screws (Fig. 4.8/4) crosswise (50 Nm).

Note! Straight pin and taper pin (GD article no. 44901900 + 44843100) are delivered with the machine in separate packing.

• Assemble the housing cover, cylindrical and taper pins at the A side in the manner of the B side.

• Remove the sleeve from rotor shaft.

Caution!The rotor shaft should rotate easily with a driver dog (Fig. 4.9/2). If strong resistance is felt, the cause of the resistance must be eliminated and the housing cover installed again.

Abb. 4.7 Assembling of housing cover

Abb. 4.8 Tapping in the taper and cylindrical pins

4.5 Measuring the Total ClearanceAfter both housing covers are installed, the total clear-ance has to be measured.

• Assemble a dial gauge with magnetic stand (Fig. 4.9/1) and holder (Fig. 4.9/3) in the thread of the fan cover mounting at one shaft end.

• Set the probe to the front face of the shaft end and pull the rotor with the driver dog (Fig. 4.9/2) into contact with the housing cover.

• Set the dial gauge to "zero".• Push the rotor into contact with the opposite

housing cover.• Read the total clearance on the dial gauge. Take

down the total clearance (see next page).Abb. 4.9 Measuring total clearance

1

3

2

M12; SW10

A sideB side

4

2

A sideB side

1

3

B sideA side

2

1

3


4-4MA-16.01.1

GB 08/02

For total clearance, refer to the table below:

RTL 60: 0.81...0.89 mmRTL 80: 0.84...0.94 mmRTL 100: 0.99...1.09 mm

These values must not be exceeded. If the total clear-ance is less, additional seals must be installed in the housing cover (see Replacement Parts List).

4.6 Assembling Cylindrical Roller Bearing (A side)• Grease radial shaft seal in housing lightly and put

in the washers (Fig. 4.11/1).Washers of 0.1/0.15/0.2 and 0.3 mm are avail-able. As a rule, 2 washers together 0.3...0.35 mm thick are installed. The thickness of the washers defines the end clearance (see Chap. 4.7).

• Fill bearing spaces with grease (GD article No. 531 015 00).

• Fully push in cylindrical roller bearing (Fig. 4.11/2) on rotor shaft and in the housing cover bore.

• Wipe off emerging grease.• Fix prepared bearing sleeve (Fig. 4.11/3) with

6 fillister head screws and washers (Fig. 4.11/4) on housing cover (25 Nm).

4.7 Mesuring and Adjusting End Clearance (A side)For measuring end clearance on the A side, set up the dial gauge with magnetic holder (Fig. 4.12).

• Set the probe (Fig. 4.12/1) to the front face of the shaft end and pull the rotor with the driver dog (Fig. 4.12/2) into contact with the housing cover.

• Set the dial gauge to "zero".• Push the rotor into contact with the opposite

housing cover.• Read the A side residual clearance on the dial

gauge. Take down value.A side end clearance can now be calculated as total clearnce less A side residual clearance: e.g. RTL 60: 0.85 mm - 0.73 mm = 0.12 mm.

The A- side end clearance must be within the following limits:RTL 60: residual clearance 0.66...0.79 mm=> end clearance A side:0.10...0.15 mmRTL 80: residual clearance 0,66...0.81 mm=> end clearance A side:0.13...0.18 mmRTL 100: residual clearance 0,79...0.94 mm=> end clearance A side:0.15...0.20 mm

If the end clearance values are not obtained, the cylin-drical roller bearing must be removed and washers added or removed as needed to obtain the correct end clearance.For example, if the end clearance is 0.1 mm less then required, a 0.1 mm washer must be installed.

Abb. 4.10 Dial gauge holder (Fig. 4.9/3)

Abb. 4.11 Assembling the cylindrical roller bearing and washer

Abb. 4.12 Mesuring of end clearance (A side)

M12

15

ø70

870

2

B sideA side

3

4

1

GREASE

M8; SW6

B sideA side

2

1

3


MA-16.01.14-5

GB 08/02

4.8 Assembling Cylindrical Roller Bearing (B side) and Measuring End Clearance

Now the cylindrical roller bearing is installed at the B side in the manner of the A side and bolted to the bear-ing sleeve (siehe Fig. 4.11).Then the B-side end clearance is measured as described in Chap. 4.7 and illustrated in Fig. 4.12 and the measuring value recorded.

B side end clearance can now be calculated as A side residual clearance less B side residual clearance:e.g. RTL 60: 0.73 mm - 0.60 mm = 0.13 mm

The B-side end clearance must be within the following limits:RTL 60: residual clearance 0.51...0.69 mm=> end clearance B side:0.10...0.15 mmRTL 80: residual clearance 0.48...0.68mm=> end clearance B side:0.13...0.18 mmRTL 100: residual clearance 0.59...0.79 mm=> end clearance B side:0.15...0.20 mm

If the end clearance values are not obtained, the cylin-drical roller bearing must be removed and washers added or removed as needed to obtain the correct end clearance.For example, if the end clearance exceeds about 0.1 mm, a 0.1 mm washer must be added.

• For closing the bearing space screw 2 hexagon head cap scews (Fig. 4.14/1) into the two bores of the washer.

• Remove straight pin and taper pin (Fig. 4.14/2 and Fig. 4.8) with the special puller (Fig. 4.15) out of the bores.For this, turn pin (Fig. 4.15/2) in straight pin (Fig. 4.14/1) and drive the straight pin from the bore by applying blows to the pin collar in axial direction of bush (Fig. 4.15/3) until the straight pin comes off the bore.

Abb. 4.13 Mesuring B side end clearance

Abb. 4.14 Closing the bearing space

Abb. 4.15 Special puller

2

1

3

A sideB side

B sideA side

2

1

0

0

1

M8; SW13

12 3

M5

ø55

ca. 100

12

ca. 50

ø30


4-6MA-16.01.1

GB 08/02

4.9 Assembling the Fan Wheel• Assemble feather key (Fig. 4.16/1) with a plastic

mallet.• Assemble fan wheel (Fig. 4.16/2) on the rotor

shaft up to the stop.• Secure the fan wheel with fillister head screw,

washers and nuts (M8) (Fig. 4.16/3).• Assemble fan wheel on both sides.

Abb. 4.16 Assembling the fan wheels

4.10 Assembling the Fan Cover • Assemble fan cover (Fig. 4.17/1) with fillister head

screws (Fig. 4.17/2), lock washer and rubber washer (Fig. 4.17/3) on both sides of the com-pressor.Tighten the screws.

Abb. 4.17 Assembling the fan cover

B sideA side

1

0

0

3

3

M8; SW6

2

B sideA side

1

0

0

2

M12; SW10

3


MA-16.01.14-7

GB 08/02

4.11 Assembling the Shaft Cover, Guard and Cover Plate

• Install shaft cover (Fig. 4.18/1) with flat fillister-head screws (Fig. 4.18/2) and washers.

• Install guard (Fig. 4.18/3) with flat fillister-head screws (Fig. 4.18/4) and washers.

• Install cover plate (Fig. 4.18/5) with flat fillister-head screws (Fig. 4.18/6) and washers.

Abb. 4.18 Assembling the shaft cover, guard and cover plate

4.12 Assembling the Non-return Valve• Assemble non-return valve (Fig. 4.19/1) with gas-

kets, flanges, thread pins and nuts (Fig. 4.19/2) (discharge side).

• Assemble counter flange (Fig. 4.19/3) with thread pins and nuts.

• Assemble lifting screw (Fig. 4.19/4) for transport and assembly.

Abb. 4.19 Assembling the non-return valve

A side

1

M12; SW10

2

34

6

5 M12; SW10

1

M12; SW19

2

3M12; SW19

44


4-8MA-16.01.1

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4.13 List of Special Tools

Tool GD article No.

Arbor for radial shaft seal 72/90/10 3 060 08.3-2



Sleeve for bearing inner raceway Tube: DIN 2448, 57 mm OD, 2.9 mm wall thickness,length approx. 350 mm

Sleeve for rotor shaft 3 060 13.4-4

Special Tools can be ordered from GD-Wittig Service see Annex.

After Sales Service

GB 08/02

After Sales Service

After Sales Services, Spare Parts Store, Rebuilt Compressors and Field Service

Gardner Denver Wittig GmbHJohann-Sutter-Strasse 6-8D-79643 SchopfheimGermany

Phone +49 (7622) 394-0Fax +49 (7622) 394-199Email [email protected]

Extensions

Spare parts Germany -263 / -264 / -267

Spare parts other countries:Europe -263Europe + Asia -264Europe+Asia+Africa -267

Field Service -264

Repairs -262 / -266

Service manager -260

Documents

Service RTL 60-100 (en)