Bauer Junior II-B-F01, Инструкция по эксплуатации

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Instruction Manual Junior II
27
- Remove allen screws (7), take off valve head cover (6).
- Put two screwdrivers into the groove of pressure valve
body (Fig. 39). If necessary turn valve loose at first using
a 13 mm spanner on the flat surfaces.
- Lift out pressure valve (3) together with O-ring (2).
Reinstall pressure valve (3) in reverse sequence:
- Check O-ring for abrasion and replace if necessary. Put O-
ring (2) into valve head (5).
- Insert pressure valve (3). Install valve head cover (6).
- Fasten valve head with allen screws (7) and washers (8).
- Screw in torque stud (1) with 20 Nm (2 kpm).
Fig. 39 Removal of 3rd stage pressure valve
4.4.9. COMPRESSOR DRIVE SYSTEM
DESCRIPTION
The compressor is driven by the drive motor through a V-belt.
The motor is mounted on the base plate and requires adjust­
ment for proper V-belt tension.
Improper v-belt tension and adjustment of
the pulleys will result in extreme v-belt ab­
rasion and premature wear.
MAINTENANCE
Checking the drive belt tension
- The best tension for a belt drive is the lowest possible,
where the belt under full load does not slip. A rough value
for this is when the belt deflects
10 mm when pressed
with thumb pressure between the two pulleys (Fig. 40).
For best results we recommend our v-belt tension meter,
part no. N25238.
V-belt tension adjustment
- Slightly loosen motor mounting nuts
- Adjust motor until the belt tension is correct (see Fig. 40).
- Tighten motor mounting nuts.
- Run motor for approx. 5 minutes. Stop motor, check V-
belt tension, and readjust if required.
- Check that after tension adjustment and tightening the
motor mounting nuts, both pulleys are in a straight line to
avoid excessive wear of the V-belt. Hold a straight edge
against compressor and motor V-belt pulleys as shown in
Fig. 41: edge must be parallel to the v-belt.
Fig. 40 Checking V-belt tension
10 mm
Fig. 41 V-belt pulley adjustment
4.4.10. ELECTRICAL SYSTEM
DESCRIPTION
This section describes the standard electrical system.
For schematic diagram, see annex.
The electrical equipment of the compressor unit consists of:
- drive motor
- electric control system
To start the electric motor and enable the functioning of the
electric control, the following components are essential:
- main switch and main fuse, both to be installed by the
customer.
DRIVE MOTOR
The compressor unit is driven by an alternating or a three
phase current motor by means of a V-belt.
MOTOR PROTECTION SWITCH (ALTERNATING CUR­
RENT MOTOR)
Protection of the motor is ensured by the thermic releases
integrated into the motor protection switch (1, Fig. 42). The
response value is preset.The motor is switched on manually
by pressing the 0-I switch to I. For safety of the operating per­
sonnel all voltage carrying parts have a protective cover.