product information overspeed governor gb 260 · 5 product information overspeed governor gb260...

Product Information Overspeed governor GB 260

Copyright as per DIN ISO 16016.

Manufactured under licence of C. Haushahn GmbH & Co. I Subject to modification.

Published by

SLC Sautter Lift Components

GmbH & Co. KG

Borsigstrasse 26

70469 Stuttgart I Germany

Phone: +49 (0) 711.86062 0

Fax: +49 (0) 711.86062 501

Service: +49 (0) 173.679 18 42

E-Mail: [email protected]

Homepage: www.slc-liftco.com

Issued 02.2007

Document-No. 300.000.037

Licence Manufactured under licence of C. Haushahn GmbH & Co.

Copyright © 2007 SLC Sautter Lift Components GmbH & Co. KG

This manual is protected by copyright fort he publisher and all rights are reserved.

This manual may not be reproduced in any way or copied by means of electronical copying methods, either as a whole or in part, without written permission from the publisher.

Translating the material also comes under the definition of copying.

3

PRODUCT INFORMATION

Overspeed governor GB260 Table of Contents

1 General notes...........................................................................................................................................5

2 Planning ...................................................................................................................................................6 2.1 Designation................................................................................................................................................6 2.2 Criteria for the selection of overspeed governors .....................................................................................6 2.3 Range of application of GB 260 ................................................................................................................6

3 Advantage-Gain-Argument GB 260 .......................................................................................................7

4 Assembly..................................................................................................................................................7

5 Operating instruction..............................................................................................................................8

5.1 Preface ......................................................................................................................................................8 5.2 Safety instructions .....................................................................................................................................9 5.2.1 Intended use of the overspeed governor ..................................................................................................9 5.2.2 Selection and qualification of personnel – Basic responsibilities ............................................................10 5.2.3 Safety instructions on assembly and specific operational phases ..........................................................11 5.3 Technical Data.........................................................................................................................................13 5.3.1 Boundary conditions................................................................................................................................13 5.3.2 Range of application................................................................................................................................13 5.3.3 Tripping....................................................................................................................................................14 5.4 State upon delivery..................................................................................................................................14 5.5 Functioning of the overspeed governor...................................................................................................15 5.5.1 Electrical pre-tripping...............................................................................................................................16 5.5.2 Sliding brake............................................................................................................................................16 5.5.3 Tensioning weight ...................................................................................................................................16 5.5.4 Governor ropes........................................................................................................................................17 5.6 Safety gear check (braking test)..............................................................................................................18 5.6.1 Manual tripping with the rope brake ........................................................................................................18 5.6.2 Tripping at rated speed by means of the test groove..............................................................................18 5.7 Installation instruction of GB260..............................................................................................................19 5.7.1 Functional check after installation ...........................................................................................................19 5.7.2 Check after braking .................................................................................................................................20

6 Periodical maintenance inspections ...................................................................................................21

7 Transport................................................................................................................................................22

8 Annex......................................................................................................................................................23

4

PRODUCT INFORMATION

Overspeed governor GB260

5

PRODUCT INFORMATION

Overspeed governor GB260 General notes

1 General notes

GB260 is an overspeed governor for lifts.

When tripping speed is reached the safety gear will be engaged.

The overspeed governor is a type-examined device.

(EC type-examination certificate no.: AGB 029/3)

Manufacturer of the safety gear

(under licence of C. Haushahn GmbH Co.)

SLC Sautter Lift Components GmbH & Co. KG

Borsigstr. 26

70469 Stuttgart

Holder of the type-examination certificate:

C. Haushahn GmbH & Co.

Heilbronnerstraße 364

70469 Stuttgart

To ensure fail-safe operation of the overspeed governor, it is to

be correctly assembled and adjusted.

6

PRODUKTINFORMATION

overspeed governor GB260 Planning

2 Planning

2.1 Designation

2.2 Criteria for the selection of overspeed governors

Rated speed

2.3 Range of application of the GB260

see chapter 5.3.2

GB….Overspeed

governor

GB260

..260Type

GB….Overspeed

governor

GB260

..260Type

7

PRODUCT INFORMATION

Overspeed governor GB260 Advantage-Gain-Argument GB 260

3 Advantage-Gain-Argument GB 260

Feature Advantage Gain

Overspeed governor Is used to monitor the rated speed in

case of :

• inadmissible excess of car speed in the

event of intact suspension means.

• Free fall of the car in the event of

broken suspension means.

Reduces the residual risk

Factory setting Exact setting

Reduced assembly time

Cost saving

Check-groove For the braking test the governor rope is

moved from the operative groove (∅300)

to the test groove (∅240).

Tripping with rated speed

Rope brake For the braking test the braking lever is

pressed down to brake the rope sheave,

the safety gear will be engaged.

Tripping with reduced speed

4 Assembly

The overspeed governor is set to the required tripping speed in

the factory, according to the relevant values

(see chapter 5.3.2).

8

PRODUCT INFORMATION

Overspeed governor GB260 Operating instruction

5 Operating instruction

5.1 Preface

This instruction manual refers to the overspeed governor type

GB 260

The instruction manual contains important information on correct

and safe installation, putting into service, use and maintenance of

the overspeed governor. Observing these instructions helps to

avoid danger, to reduce repair cost and downtimes and to

increase the reliability and life of the device.

The instruction manual has to be supplemented by instructions

based on national rules and regulations concerning accident

prevention.

The instruction manual has always to be available wherever the

safety gear is in use. The instruction manual has to be read and

applied by any person in charge of carrying out work with and on

the overspeed governor.

In addition to the instruction manual and to the mandatory rules

and regulations for accident prevention in the country and place

of use of the overspeed governor the generally recognized

technical rules for safe and proper working are also to be

observed.


Borsigstraße 26 , 70496 Stuttgart, Germany

Phone: +49 (0) 711.86062 0

Telefax: +49 (0) 711.86062 501

Service: +49 (0) 173.679 18 42

E-Mail: [email protected]

9

PRODUCT INFORMATION


5.2 Safety instructions

The following designations and signs are used in the manual to designate instructions of particular importance:

DANGER

in this manual refers to the risk of death, heavy injuries or extensive damage if

the required prevention measures are not taken.

WARNING

in this manual refers to light injuries or damage if the required prevention

measures are not taken.

i

IMPORTANT

in this manual refers to important information about the product or is meant to

attract the readers attention to important parts of the manual.

5.2.1 Intended use of the overspeed governor

The overspeed governor is built in accordance with current

standards and recognized safety rules. Nevertheless, its use may

constitute a risk to life and limb of the user or cause damage to

the overspeed governor and to other material property.

The overspeed governor shall only be operated in technically

perfect condition in accordance with its intended use and the

instructions set out in the instruction manual, and only by safety-

conscious persons who are fully aware of the risks involved in

operating the device. Any functional disorders, especially those

affecting the safety of the overspeed governor should therefore

be rectified immediately.

The overspeed governor is designed exclusively to monitor the

rated speed. Using the overspeed governor for purposes other than those

mentioned above is considered contrary to its intended use. The

manufacturer cannot be held liable for any damage resulting from

such use. The risk of any misuse lies entirely with the user.

A risk-specific symbol is added if necessary



10

PRODUCT INFORMATION


Operating the overspeed governor within the limits of its intended

use also involves observing the instructions set out in the

instruction manual and complying with the inspection and

maintenance directives.

Never make any modifications, additions or conversions which

might affect safety, without the supplier’s approval.

Spare parts shall comply with the technical requirements

specified by the manufacturer. Spare parts from original

equipment manufacturers can be relied to do so.

Adhere to prescribed intervals or those specified in the instruction

manual for routine checks and inspections!

For the execution of maintenance work tools and workshop

equipment adapted to the task on hand are absolutely

indispensable.

5.2.2 Selection and qualification of personnel – Basic responsibilities

Any work on and with the overspeed governor must be executed

by reliable personnel only. Statutory minimum age limits must be

observed!

Employ only trained or instructed staff and set out clearly the

individual responsibilities of the personnel for operation, set-up,

maintenance and repair!

Make sure that only authorized personnel works on or with the

device!

11

PRODUCT INFORMATION


5.2.3 Safety instructions on assembly and specific operational phases

Installation

Always wear personal protective equipment during installation

work.

Normal operation

Avoid any operational mode that might be prejudicial to safety.

Take the necessary precautions to ensure that the overspeed

governor is used only when in a safe and reliable state.

Maintenance and repair

Ensure that the maintenance area is adequately secured.

For carrying out overhead assembly work always use specially

designed or otherwise safety-oriented ladders and working

platforms. Wear a safety harness when carrying out maintenance

work at greater heights!

Before cleaning with water or detergents cover or tape up all

openings which – for safety and functional reasons – must be

protected against water or detergent penetration.

After cleaning remove all covers and tapes applied for that

purpose!

Always tighten any screwed connections that have been loosened

during maintenance and repair!

Ensure that all consumables and replaced parts are disposed

safely and with minimum environmental impact!

12

PRODUCT INFORMATION


Warning of special dangers

Gas, dust, steam, smoke

HAZARD

Carry out welding and grinding work on the overspeed governor

only if this has been expressly authorized, as there may be a risk

of explosion and fire.

Before carrying out welding or grinding operations, clean the

governor and its surroundings from dust and other inflammable

substances and make sure that the premises are adequately

ventilated (risk of explosion).

When working in small rooms observe any relevant national

regulations!

Oil, grease and other chemical substances

When handling oil, grease and other chemical substances

observe the product-related safety regulations.

Be careful when handling hot consumables (risk of burning or

scalding).

Installation and adjustment of the overspeed governor

HAZARD

Wrong setting of the overspeed governor may result in a fall-down

of the lift.

If any readjustment is exceptionally required, this has to be

carried out only by specially trained persons after consultation

with the manufacturer.

The manufacturer cannot be held liable for damages caused by

unauthorized setting alterations.

Before installing the overspeed governor type plate

characteristics have to be compared with the lift characteristics.

The safety gear shall be used only within the permissible range of

application (See EC type examination certificate AGB 029/3).

13

PRODUCT INFORMATION


5.3 Technical Data

5.3.1 Boundary conditions

� The overspeed governor is acting in both senses of direction;

� The side where the rope is connected to the safety gear has to

be marked on installation

� Installation in shaft or machine room.

� Installation with / without mounting plate.

� Connection to safety gear linkage: wedge socket / thimble

� Tensioning weight required: 45 kg

(in case of increased tensioning weight the rope groove is

hardened)

� Groove for governor rope hardened or unhardened ∅ 8 mm

(Groove for governor rope hardened or unhardened ∅ 6,5

mm)

� Operative groove ∅: 300 mm

� Test groove ∅: 240 mm

(Ratio of diameters of operative groove to test groove = 1,25)

� Overall dimensions: height = 350 mm

width = 310 mm

depth = 250 mm

weight = 20 kg

5.3.2 Range of application

max.

rated speed

max.

electrical pre-tripping

about 93% of tripping speed

(disconnection of safety circuit)

max.

tripping speed

(mechanical tripping)

6,95 m/s 7,44 m/s 8,0 m/s

14

PRODUCT INFORMATION


5.3.3 Tripping

� Pulling force at governor: 600 N

(the sliding brake prevents the blocking of the rope sheave

and uncontrolled increase of force in the governor rope)

� max. engaging force of the safety gear: 300N

(acc. to EN81-1 9.9.4)

5.4 State upon delivery

The overspeed governor is set to the following lift-specific data:

� Rated speed of the car

� Tripping speed

The setting is secured against alterations by means of a seal by

the manufacturer.

HAZARD

Wrong setting of the overspeed governor may result in a fall-down

of the lift car.

If exceptionally a setting correction is required, the setting has to

be carried out exclusively by competent persons after

consultation with SLC Sautter Lift Components. The new setting

has to be secured against unauthorized alterations by means of a

seal.

The manufacturer cannot be held liable for damages caused by

unauthorized readjustments.

Before installing the overspeed governor its type plate

characteristics are to be checked for conformity with the lift

characteristics. The overspeed governor shall only be applied

within the admissible scope of application. (See EC type

examination certificate AGB 029/3).

15

PRODUCT INFORMATION


5.5 Functioning of the overspeed governor

��

Ë

�

��

�

Í

The overspeed governor is working according to the centrifugal

principle. Two centrifugal weights � at rope sheave � are held

in rest position by adjustable, pretensioned compression springs

� agaginst a stop.

When the tripping speed is reached these weights swing radially

to the outside, hook in to sliding brake � and brake the rope

sheave.

The overspeed governor works in both senses of rotation. The

arrow that marks the down direction is loosely attached and shall

be fixed to the governor after the sense of direction is defined.

The overspeed governor is provided with electrical pre-tripping

� that disconnects the safety circuit when 93% of the tripping

speed is reached.

The overspeed governor shall trip at 115 % - 125 % of the rated

speed. The tripping values are set in the factory and are secured

by a seal.

The monitoring switch � (pre-tripping and tripping) shall be reset

manually � after tripping to “ON” position.

The overspeed governor is equipped with a sliding brake �.

When tripping speed is reached the rope sheave is braked by

the sliding brake and engages the safety gear. The rope sheave

remains rotating until standstill of the lift car. This way rope and

groove are handled with care especially if there are long braking

distances. The braking torque is set in the factory to 100 Nm.

The rope groove is a round groove with undercut.

16

PRODUCT INFORMATION


5.5.1 Electrical pre-tripping

The electrical pre-tripping causes the disconnection of the safety

circuit and engagement of the brake if the lift speed rises to about

93% of the tripping speed in up and down direction. Thus, in

down direction the lift is braked before the safety gear trips.

5.5.2 Sliding brake

The sliding brake of the overspeed governor provides the

engaging force to engage the safety gear. The rope running in the

rope groove has a special friction effect owing to the shape of the

groove. When the respective tripping speed is reached (in

advance resp. upon braking) this weights swing radially to the

outside and hook in into the sliding brake, thus braking the rope

sheave.

The initially high frictional force caused by the surface roughness

of new grooves and new ropes are decreasing in the course of

operating life and even will be reduced by friction-affecting

materials like grease, oil, dirt etc. and by the ordinary wear and

tear in the rope groove.

The loss of frictional force can be compensated only by

increasing the weight of the tensioning weight, which again will

increase the wear and tear.

5.5.3 Tensioning weight

The tensioning force applied by the tensioning weight is also

decisive for the achievable engaging force.

It should be rated so, that the friction resulting therefrom is higher

than the force that - owing to the set sliding torque of the brake -

is available in the groove. If braking is active the governor rope is

driving the rope sheave against the acting torque of the friction

brake and engages the safety gear.

17

PRODUCT INFORMATION


Check whether the selected tensioning weight with its known

tensioning force can produce a frictional force that complies with

the locally applicable rules. The tensioning weight is monitored

via a slack rope switch. If the governor rope breaks, the

tensioning weight swings down. Thus, the switch is forcibly

activated and the control circuit opens positively, so that the drive

brake is made active.

5.5.4 Governor ropes

Use only a flexible, stress-free and twist-free wire rope acc. to

DIN 3051 and DIN 2078. The rope diameter has to correspond

with the type plate data of the overspeed governor.

i

ATTENTION

Wire ropes shall not be mounted when twisted.

They are to be hanged-up freely in the shaft to untwist and their

ends must be put together in this position.

Torsional movements of the rope while entering the groove are

increasing wear and tear.

Ë

Î Ï

ÍÍ

Ê

Ì

Ê Monitoring switch

Ë Rope switch

Ì Sliding brake

Í Centrifugal weight

Î Operative groove

Ï Test groove

18

PRODUCT INFORMATION


5.6 Safety gear check (braking test)

5.6.1 Manual tripping with the rope brake

The supplied rope is hooked-in with the thimble at the lever,

the rope is put into the test groove and the brake lever

inserted.

Initially, the rope is kept slack. To engage the safety gear

wird the rope is tensioned by pressing down the lever; thus

the rope sheave is braked and the safety gear engaged.

In this procedure the down direction is to be observed.

5.6.2 Tripping at rated speed by means of the test groove

Beside of the operative groove with an operating diameter of

300 mm the overspeed governor is fitted with a test groove with

diameter 240 mm.

When carrying out the braking test the governor rope is transfered

from the operative groove to the test groove which rotates with a

speed corresponding to the tripping speed, and the overspeed

governor trips and engages the safety gear.

to the tensioning

pulley

to the safety gear

19

PRODUCT INFORMATION


5.7 Installation instruction of GB260

Installation bore holes of the overspeed governor

5.7.1 Functional check after installation

Prior to lift commissioning the overspeed governor has to be

checked for functioning as follows:

� Carrying out the lift specific checks according to lift

manufacturer’s instructions (inspection run etc.)

� Check of the governor rope (correct vertical rope guidance; no

oscillations; tensioning weight not swinging)

� At about 93 % of tripping speed the pre-tripping function shall

disconnect the safety circuit.

� The overspeed governor shall trip at 1,15 x rated speed.

14

200

70

Seilabstand 300 Rope distance 300

20

PRODUCT INFORMATION


5.7.2 Check after braking After any braking action the overspeed governor has to be

rechecked by a competent person.

It shall be checked visually whether any alterations, dirt or

damages have occured.

Following items shall be checked:

� Wear and tear at the rope sheave

� Wear and tear at the governor rope

� Smooth running

� Pre-tripping has to be reset to initial position “ON“

21

PRODUCT INFORMATION

Overspeed governor GB260 Periodical maintenance inspections

6 Periodical maintenance inspections

The overspeed governor and the sheave of the tensioning weight

are permanently maintenance-free and must not be relubricated.

The grease cup should be filled every 3 months with

Shell Alvania R2 or another comparable lubricant.

In case of frequent use checks as follows should be carried out in

intervals of 6 months:

� Visual check of the governor rope for broken wires,

deformations, dirt, grease etc. If after a longer period of use

the ropes show signs of wear and tear, they are to be

replaced by qualified personnel only.

� Visual check of governor sheave and groove for grease and

dirt. Clean it, if necessary.

� If the groove shows rope marks the governor shall be

replaced immediately as the rope might tear off when the

governor trips!

� Visual check of tension spring, seal, general state. Possibly,

the tripping speed has to be checked acc. to item 5.3.2.

On occassion of periodical maintenance inspections the

overspeed governor shall be checked for

� Smooth running

� Wear and tear at the rope sheave (operative groove)

� Rust

� Dirt

� Seal

If after a longer period of use the overspeed governor show signs

of wear and tear, it is to be replaced by qualified personnel.

Serial no.: 111.100.270

22

PRODUCT INFORMATION

Overspeed governor GB260 Transport

7 Transport

Any work during transport, storing, assembly, putting into service

and eventually disassembly and disposal of an overspeed

governor must only be executed by specially trained personnel.

The personnel is responsible for correct assembly, transport and

installation and for providing the operative state of the overspeed

governor. If this is not guaranteed, the manufacturer shall not be

held liable for possibly occuring damages.

During transport the overspeed governor shall be protected

against:

� Humidity

� Shock

� Dirt

� Falling-down etc.

23

PRODUCT INFORMATION

Overspeed governor GB260 Annex

8 Annex


Borsigstrasse 26

70469 Stuttgart I Germany

Phone: +49 (0)711.860620

Fax: +49 (0)711.86062501

www.slc-liftco.com

product information overspeed governor gb 260 · 5 product information overspeed governor gb260...

Documents