Brodie BiRotor BA-89, Инструкция по установке и эксплуатации

Страница: 13 / 26

7
6. Remove ORing (item 12) and inspect for
nicks, cuts and excess wear. Replace as
needed.
7. The measuring unit (item 9) may now be
removed and inspected. In some cases a
thorough washing in cleaning solvent or
kerosene will be sufficient to free the rotors of
corrosion or foreign material and the unit may
be reinstalled without further disassembly. In
the event the rotors are blocked with solid
matter, it will be necessary to remove the
rotors and gear box assembly for further
cleaning.
CAUTION
Extreme care must be exercised when the
measuring unit assembly is exposed or handled.
Hands must be kept clear of all gears and rotors or
serious personal injury can occur. Due to the
precision of the rotors and drive gears, they can be
set in motion easily. Keep hands clear of these parts
et all times. At no time should the hands be used to
brace the parts while servicing.
4.3 Disassembly of Measuring Unit
(Reference Figure 4.2)
1. Position the Measuring Unit Assembly in a
wooden support block with the gear assembly
downward.
2. Block Rotors with a plastic or wooden rod,
Figure 41.
3. Remove retaining ring (item 20) and washer
(item 19) from driven gear (item 21).
4. Remove driven gear (item 21) and gear shaft
(item 22).
5. Remove set screw (item 16) from the drive
gear (item 18). Lift off drive gear.
6. Remove adjustment nuts (item 15) from rotor
shafts, and bearing retainers (item 13). Do not
remove front end plates at this time.
7. Rotate measuring unit body (item 1 ) so that
the front of the housing rests on wooden
support blocks and the gear assembly is
upward.
8. Remove timing gears from each rotor shaft by
removing jam nuts (item 7) and lockwashers
(item 10). To aid in removal, lightly tap the
Figure 4.1 Blocking Rotors
Figure 4.2 Filing Rotors