JLG TF6-42 Service Manual Manuale d'uso
Pagina 544
Loosen nuts (17) and set braking levers (19) clearances to zero by
turning dowels (18); lock nuts (17) with a torque wrench setting of
20 ± 25 Nm.
CAUTION! Clearances should be set to zero without causing any
preloading.
Install distance piece (2) and insert the pin of support (10) into the
right-hand braking lever. Fit the second distance piece (2) and snap
ring (1).
Install cylinder (4) complete with rod (5) and internal nut (6).
Centre the hole of fulcrum pin (3).
Apply Loctite 242 to the pin thread, screw and tighten pin with a
dynamometric wrench set at 25 ± 30 Nm.
Introduce pressure into the cylinder (4) and whilst holding both
levers (19) back against the adjusting screws (18), move nuts (6)
and (7) so that they are made to rest against support (8); lock the
nuts with a torque wrench setting of 50 ± 60 Nm.
Check that, when the brakes are released (pressure inserted),
levers (19) do lean against the screws (18) without prestressing
them and make sure that a clearance "A" is left between cylinder
(4) and lever (19).
Also check that when pressure is released, piston (13) projects out
by 4 ± 5 mm.
bar
GB
GB
GB
GB
GB
GB
a
b
c
d
f
e
142
HOW TO ASSEMBLE AND INSTALL THE EXTERNAL HYDRAULIC NEGATIVE BRAKE - ASSEMBLAGGIO ED INSTALLAZIONE FRENO NEGATIVO
IDRAULICO ESTERNO - AÈUûERE HYDRAULISCHE NEGATIVBREMSE MONTIEREN - ASEMBLAJE Y INSTALACION FRENO NEGATIVO
HYDRAULICO EXTERIOR - ASSEMBLAGE ET INSTALLATION DU FREIN NEGATIF HYDRAULIQUE EXTERNE
F1240756
17
18
19
8
÷
10 N
(0,8
÷
1 kg)
F1240949
8
2
1
F1240947
5
4
6
F1240757
3
5
F1240951
18
19
8
7
6
D1240100
19
A
4
5
18
4
÷
5 mm
13