User's Manual

CHOOSING AND INSTALLING ADDITIONAL

SPRINGS

When choosing the additional spring(s) for your

pantograph, you will first need to know exactly

which model of pantograph you have, in order

that you can select the spring of the correct

length. If you have one of the new compact

pantographs (with grey-painted "scissors"), look

at the colour of notched ring "X" (see chapter

"Friction Adjustment"): the 2m (79”) version has

a red notched ring, while the 3.8m (150”) version

has a blue notched ring. After having identified

the length of the pantograph, choose the

appropriate spring/springs by refering to the

table below.

Model FF3512 FF3514

Notched ring colour BLUE RED

Extension 200 cm - 79” 380 cm - 150”

Spring Available Type 4 (Red) FF3531 Type 4 (Blue) FF3533

Type 12 (Red) FF3532 Type 12 (Blue) FF3534

Spring type Counter balanced Weight

Without spring from 1 (2.2lbs) to 4 kg (8.8lbs)

Type 4 from 3 (6.6lbs) to 8 kg (17.6lbs)

Type 4 + Type 4 from 8 (17.6lbs) to 14 kg (30.8lbs)

Type 12 from 9 (19.8lbs) to 16 kg (35.3lbs)

Type 4 + Type 12 from 13 (28.6lbs) to 18 kg (39.7lbs)

1st additional spring

2nd additional spring

Insert the appropriate spring in housing “A” and block it with nuts “V” using appropriate wrench.

Use the hook “L” to pull the spring head over stud “P”. Block it with screw “S” to guarantee that the

spring can not unhook itself and to ensure that the pantograph adheres to safety regulations.

While the spring hook-up operation is very simple, it can be dangerous if not carried out with

care. We advise you to wear work gloves and only hook up the spring with the pantograph in

the closed position. Check carefully that the spring is securely hooked and fastened to the

pantograph before extending.