Mitsubishi Electric PFAV-P250VM-E Manual De Instalación página 3

4
[Fig. 4.2.1]
B Sliding disc
A Fixed disc of
the pulley
C Screw (M8)
<A> Fixed disc
must be D Fixed disc
placed on
the motor
side.
<B> Pulley distance
Table 1 Variable-width pulley PC ø table
1 Number of turns to apply
2 Pulley distance (mm)
3 PC ø of variable-width pulleys for
1.5 kW motor
4 PC ø of variable-width pulleys for
2.2 kW motor
[Fig. 4.2.3] Ex: P500 type
A Motor base fixing bolts
[Fig. 4.2.5] Belt Tension
<A> Deflection force W(N)
L
<B> L = 0.016×C C: Center distance (mm)
[Fig. 4.2.8]
A Part A
<C> Rotation direction of
the pulley while in use
<D> The fixed and the sliding discs can be fixed
in position relative to each other by threading
(Pointed
the setscrew through one of the two holes on
Allen
the sliding disc so that the tip of the setscrew
screw)
rests in the V-shaped notch on either of the
two flat parts of the fixed disc.
E Flat part
of the
pulley
<E> The fixed disc has threads
and the sliding disc has
grooves.
0 1/4 1/2 3/4 1 1·1/4
(0) (0.4) (0.8) (1.1) (1.5) (1.9)
140.0 138.8 137.5 136.3 135.1 133.9 132.6 131.4 130.2 129.0 127.7 126.5 125.3 124.1 122.8 121.6 120.4 119.1 117.9 116.7
150.0 148.8 147.5 146.3 145.1 143.9 142.6 141.4 140.2 139.0 137.7 136.5 135.3 134.1 132.8 131.6 130.4 129.1 127.9 126.7
B Motor base sliding bolts
[Fig. 4.2.6]
<A> Detailed View of Part A
4.2
[Fig. 4.2.2]
A FAN side pulley
1·1/2 1·3/4 2 2·1/4 2·1/2 2·3/4
(2.3) (2.6) (3.0) (3.4) (3.8) (4.1)
[Fig. 4.2.4]
K
K
K
K
K
Table 3 Pulley Parallelism
Parallelism
Pulley
Cast-iron pulley
Extention bar
13
75
B Stopper
B Variable-
width pulley
α1 = α2
C Ruler etc.
3 3·1/4 3·1/2 3·3/4 4
(4.5) (4.9) (5.3) (5.6) (6.0)
K (min) Remark
Equivalent to offset of 3 mm
10 or less
every 1 m
[Fig. 4.2.7] Ratchet handle/9.5mm (3/8")
190
[Fig. 4.2.9]
A Fill opening
4·1/4 4·1/2 4·3/4
(6.4) (6.8) (7.1)
3