Remove the control board plastic box in a way to create space within the column.
Pic. 1 - Unscrew the two ring nuts from the balancing-unit
Pic. 2 - Remove the lower balancing-unit piece.
Pic. 3 - Remove the two plastic washers from the central pipe, they are useless to install just two balancing springs.
Pic. 4 - Fit the two springs on the side pipes.
N.B. Springs must be chosen following the SPRINGS CHOICE AND ADJUSTMENT TABLE.
Pic. 5 - Fit the lower balancing-unit in a way that its two plastic elements touch the side springs.
Pic. 6 - Screw the first ring nut in a way that its side with the larger smooth surface touches lower balancing-unit.
Pic. 7 -
N.B.: SCREW THE RING NUT AS SHOWN IN THE TABLE ABOVE (TENSION H - See section “Adjust balance springs”) with the supplied
wrench.
Screw the second ring nut in away to block the first one.
Go ahead to assemble the arm following the indications provided in the “ARM ASSEMBLY” paragraph.
FITTING 2 BALANCING SPRINGS
1
2
3
4
5
6
7
CHART FOR BOOM SPRING REGULATION
Boom lenght
Composition boom
and accessories
Boom/accessory code
Spring type
Spring code
Draft
3 m
Boom Ø80
EBRA.380 + EBRM.80
3 springs Ø 4 mm
3xEBRM.4
20
Boom Ø80 and mobile support
EBRA.380 + EBRM.80 + EBRP.M
2 springs Ø 4,5 mm
2xEBRM.4.5
20
Boom Ø80 and rubber edge
EBRA.380 + EBRM.80 + EBRG.3
2 springs Ø 4,5 mm
2xEBRM.4.5
20
Boom Ø80 and hedge
EBRA.380 + EBRM.80 + EBRS.3
2 springs Ø 4,5 mm
2xEBRM.4.5
20
Boom Ø80, rubber edge and mobile support
EBRA.380 + EBRM.80 + EBRG.3 + EBRP.M
2 springs Ø 4,5 mm
2xEBRM.4.5
25
Boom Ø80 and hedge and mobile support
EBRA.380 + EBRM.80 + EBRS.3 + EBRP.M
2 springs Ø 4,5 mm
2xEBRM.4.5
25
4 m
Boom Ø80
EBRA.480 + EBRM.80
1 spring Ø 4 mm, 2 springs Ø 4,5 mm
1xEBRM.4 + 2xEBRM.4.5
20
Boom Ø80 and mobile support
EBRA.480 + EBRM.80 + EBRP.M
3 springs Ø 4,5 mm
3xEBRM.4.5
20
Boom Ø80 and rubber edge
EBRA.480 + EBRM.80 + EBRG.4
3 springs Ø 4,5 mm
3xEBRM.4.5
20
Boom Ø80 and hedge
EBRA.480 + EBRM.80 + 2xEBRS.2
3 springs Ø 4,5 mm
3xEBRM.4.5
20
Boom Ø80, rubber edge and mobile support
EBRA.480 + EBRM.80 + EBRG.4 + EBRP.M
2 springs Ø 4,5 mm, 1 spring Ø 5 mm
2xEBRM.4.5 + 1xEBRM.5
20
Boom Ø80 and hedge and mobile support
EBRA.480 + EBRM.80 + 2xEBRS.2 + EBRP.M
1 spring Ø 4,5 mm, 2 springs Ø 5 mm
1xEBRM.4.5 + 2xEBRM.5
20
5 m
Boom Ø80
EBRA.580 + EBRM.80
1 spring Ø 4,5 mm, 2 springs Ø 5 mm
1xEBRM.4.5 + 2xEBRM.5
20
Boom Ø80 and mobile support
EBRA.580 + EBRM.80 + EBRP.M
2 springs Ø 5 mm, 1 spring Ø 5,5 mm
2xEBRM.5 + 1xEBRM.5.5
15
Boom Ø80 and rubber edge
EBRA.580 + EBRM.80 + EBRG.5
2 springs Ø 5 mm, 1 spring Ø 5,5 mm
2xEBRM.5 + 1xEBRM.5.5
15
Boom Ø80 and hedge
EBRA.580 + EBRM.80+EBRS.2+EBRS.3
1 spring Ø 5 mm, 2 springs Ø 5,5 mm
1xEBRM.5 + 2xEBRM.5.5
15
Boom Ø80, rubber edge and mobile support
EBRA.580 + EBRM.80 + EBRG.5 + EBRP.M
3 springs Ø 5,5
3xEBRM.5.5
20
Boom Ø80 and hedge and mobile support
EBRA.580 + EBRM.80+EBRS.2+EBRS.3 + EBRP.M
3 springs Ø 5,5
3xEBRM.5.5
20
6 m
Boom Ø80
EBRA.680 + EBRM.80
3 springs Ø 5,5
3xEBRM.5.5
15
See section “Adjust balance springs”
18
FRAGMA
EN
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