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10
B.- Cleaning and maintenance
Due to the unfavourable conditions (swarth,coolants,high pressure, etc.) with which these
vices have to work inside the machining centres, it is important that the vice is cleaned regularily.
A simple cleaning operation is usually sufficient by using the side vents.
We recommend a suction pump system as opposed to compressed air which could cause
injury. A complete cleaning operation should be carried out every 1000 working hours. To do so,
the 4 flange-clamp screws (4026-090; 4051-125) must be loosened, the central jaw removed,
and the assembly of the 2 bolts and the spindle with the protector plates taken out of the vice body
taking care to avoid the bolts from rotating in the spindle.
The next step is to clean the vice body and the swarth in the spindles and inthe interior of
both bolts.
We recommend that all sliding surfaces should be greased.
C.- Instructions for Changing and Replacing the Spindles
1) Loosen the central fixed jaw (4106)
or
(4131), body dowel pins (4122-090; 9111-125) and the
4 flange screws. Then take out the whole assembly (bolts, spindles and side jaws).
2) Unscrew the Allen set screw (0004) and detach the flange-regulator assembly from the hy
-
draulic unit. The main spindle (4009) has two flat surfaces on either end to simplify this ope
-
ration. The bolt (4007) is now unscrewed from the main spindle.
3) To release the other bolt (4102), unscrew the set screw (0215) located on the nut of the piston
(4035) and then unscrew this piston. This way one can take out the nut (5-090; 3-125) and the
main right spindle (4102) loosen nut (4003).
4) If the spindle rotates when taken out, the nuts may have come off-centre. When this occurs
the nuts must be centred before setting the jaws.
D.- Disassembling the Hydraulic Unit
1) Loosen the set screw (0215) located in the cylinder (4004), unscrew the main spindle (4009)
thus detaching it from the cylinder.
2) Remove the belleville springs (0213-090; 0007-125), and take out the small piston (4029-090;
0012-125).
3) Remove the cylinder (4004), the large piston (4034), the washer (4005), and the small and
large seals. With the 125 model remove the cover (4037) and the seal (0011).
E.- Hydraulic Oil Refilling
1) Place the small seal (0009) facing up in its setting in the cylinder. Then introduce the cylinder
(4005) washer down in the opposite direction.
2) The seal (4006-090; 0011-125) and cap (4037) (The 090 model has no cap) are attached to
the piston which is then introduced into the cylinder. In order to asure the correct position of
the seals, one must blow air from one of the ends of the piston.
3) Placing the assembly in a vertical position, the piston is then filled with hydraulic oil to maxi
-
mum capacity making sure that there is no air trapped in the oil. This can be done by stiring a
thin rod and thus removing any visible bubbles.
4) We recommend hydraulic oil with a 6,5 E/50º viscosity (for example, Renolin MR 20 – Fuchs).
5) The small piston (4029-090; 0012-125) is slowly introduced into the large piston (4034), sea
-
ling the chamber. The piston must be perfectly clean so as not to damage the interior.
6) Holding the main spindle (4009), introduce the belleville springs (0213-090; 0007-125).
Thread the deposit (4004) to the spindle until the springs are compressed. The hydraulic unit
is now assembled.
7) Introduce the piston (4028) inside the spindle (4009).
8) Thread the main spindle in the flange assembly.
Summary of Contents for 040 410 090
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