36
308783
Service
17. Install the ratio check valves (AH), integrator tube
(AG), and integrator housing (AF). See Fig. 16.
18. Tighten the screw (87) with the washer (85) and
lockwasher (86) into the plate (84).
19. Secure the static mixer (81) with the nut (AE).
20. Push in the fluid panel (4) and secure it with the
screws (68).
21. Connect the fluid lines to the check valves (13).
See Fig. 14.
22. Install the front cover (2). See Fig. 12.
Power Supply Turbine Alternator Service
NOTE:
Replace turbine bearings after 2000 hours of
operation. A Turbine Alternator Repair Kit is available.
See
Accessories
on page 37.
1.
Relieve the pressure as instructed on page 17.
2.
Turn off the power to the control (air and/or electri-
cal).
3.
Remove the front cover (2). See Fig. 12.
4.
See the parts drawing–Detail C, page 38, for the
location of the power supply.
5.
Disconnect the electrical connector (74b) from the
wire harness (95).
6.
Remove the two screws (73) and remove the
power supply (74) from the control. See Fig. 18.
7.
Remove the six screws (74f) and carefully sepa-
rate the power supply housings (AI, AJ).
8.
Disconnect the 3-wire connector (AK) from the
circuit board (74c).
9.
Carefully pull the alternator (74g) out of the hous-
ing (AI).
10. Use an ohmmeter to test the turbine alternator coil.
Measure the resistance between the two outer
terminals of the 3-wire connector (AK). The resist-
ance should be 3 to 5 ohms. If the reading varies
from this value, replace the alternator.
11. Measure the resistance between each outer
terminal of the 3-wire connector and the turbine
alternator housing. The resistance should be
infinite. If the resistance is not infinite, replace the
alternator.
12. Inspect the gasket (74a), o-ring (74h), and cushion
(74j) and replace if damaged or worn.
13. Push the alternator (64g) into the housing (AI).
14. Connect the 3-wire connector (AK) to the circuit
board (74c).
15. Assemble the power supply housings (AI, AJ) and
secure them with the screws (74f).
16. Secure the power supply (74) to the bracket (43)
with the screws (73).
17. Connect the electrical connector (74b) to the wire
harness (95).
18. Install the front cover (2). See Fig. 12.
Fig. 18
43
74
73
7499A
74h
74a
74c
74j
74g
74f
74d
Ref. 74b
74e
74k
NOTE:
Exploded assembly orientation
reversed to clearly see parts.
74b
AI
AJ
AK
