Wacker Neuson G 2.1A, Руководство по ремонту

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4A-9
50 HZ PORTABLE GENERATORS G2.1A/G2.1AE 4A
4.15 Generator Disassembly
Capacitor
1. Remove the two end cover screws
(10)
and the end
cover
(9)
. See Figure 4-10.
2. Disconnect the leads from the capacitor
(11)
, cut the
nylon tie wrap, and remove the capacitor mounting
screw.
Stator
1. Remove the control panel, unscrew the ground wire
(14)
and unplug the stator wire
(15)
from the back of
the panel. See Figure 4-10.
2. Remove the shaft securing nut
(7)
.
3. Remove the four nuts
(13)
securing the generator
frame
(12)
to the engine adapter flange.
4. Remove the two bolts and nuts that secure the stator
(12)
to the shock mount bracket.
5. With a block of wood and a mallet, tap stator frame
away from the engine. Withdraw stator frame
assembly
(12)
over the rotor
(3)
carefully to avoid
damage to windings in the stator or rotor.
Note: If the rotor comes out with the stator,
skip step 6.
6. Support the rotor weight with a sling or place a block
between the rotor and base.
Rotor
Rotor
(3)
removed with stator:
1. Place stator on flat surface with bearing
(8)
end up.
Elevate the stator
(12)
by placing two blocks of wood
on the edge of the stator frame to allow the rotor to
drop. See Figure 4-10.
2. Partially screw one of the frame mounting bolts into
the bearing and tap screw with a mallet. The rotor
should drop out of the stator.
Rotor
(3)
still attached to the engine:
1. Remove stator per instructions above.
2. Release the rotor
(3)
from the engine shaft by
supporting rotor in one hand and with a mallet,
striking firmly on a pole face.
Diode and/or Varistor
1. Unsolder leads from the diodes
(5)
and
(8)
and
unscrew diode stud. See Figure 4-10.
2. Unsolder varistor lead from the solder tag on the
diode stud.
3. Remove the silicon sealant supporting the varistor
from the diode bracket
(4)
.
4.16 Generator Assembly
When assembling the generator be sure to observe the
following:
1. Install diodes
(5)
to the diode bracket
(4)
assembly
on the rotor, by placing the solder tags on the diode
stud and tighten to the diode base. See Figure 4-10.
2. Insert varistor leads first, and push varistor well
down into the diode bracket assembly recess. Solder
leads to the diode pin and the solder tag on the diode
stud. Reseal varistor with silicon sealant.
3. Make sure inner taper on rotor and outer taper on the
engine crankshaft are clean and free of rust and oil.
4. Install the rotor
(3)
on crankshaft.
5. Slide stator
(12)
over the rotor carefully to avoid
hitting and damaging windings. Tap the frame onto
the rotor bearing.
6. Attach the four nuts
(13)
to secure frame to the
engine adapter flange.
7. Install the shaft securing nut
(7)
. Tighten to 13 ft. lbs.
(17.5 Nm).
8. Install the capacitor
(11)
using the mounting screw
and a new nylon tie wrap. Re-attach the two leads.
9. Install the end cover
(9)
and two mounting screws
(10)
.
10. Reconnect the ground wire
(14)
and the stator wire
(15)
to the control panel, and reinstall panel.