37- 1- 613 Page 43
Models
Total End Clearance
(Suction & Discharge)
Suction
End
Discharge
End
5CDL5
5CDL9
5CDL13
.011
.016
.021
.006
.011
.016
.005
.005
.005
Dimensions are for Ideal Clearances. Allow +/ -
-
- .001 for Tolerance
FIGURE 7- 8 – ROTOR END CLEARANCE CHART (UNIT COLD)
8.
To the micrometer reading add discharge end
clearance shown in clearance chart,
FIGURE 7- 8
and .002
” for crush fit of shims and parts. This
sum gives the thickness of the shim set for posi-
tioning the rotor the required distance from the
face of the carrier for running clearance at the
discharge end.
EXAMPLE FOR 5CDL13 BLOWER:
Micrometer reading of .015
” plus .005” discharge
end clearance, FIGURE 7 - 8, plus .002
” crush
gives shim set thickness of .022
”.
Figure shim set for each rotor and record
measurements which will be used later in the
assembly under Steps 15 and 16.
The second set of measurements is used to deter-
mine total end clearance.
To give proper rotor end
clearance at both inlet and discharge ends (referred to
as total end clearance) the distance between the face
of the bearing carriers must be equal to the rotor length
plus both end clearances. Total end clearance is
obtained by adding shims as required between the
flange of the housing and the discharge end bearing
carrier. The thickness of the shim set is determined as
outlined in Steps 9 and 10.
9.
With a depth micrometer (Figure 7-9), measure
the distance from the end of the rotor lobes to the
end of the housing. Rotate rotors to check each
lobe and record the
largest micrometer reading
.
If the measurement varies more than .005
”,
remove the rotors and check for burrs on the gear
end carrier face and the end of the rotors. To the
largest micrometer reading add the Total End
Clearance shown in the clearance chart,
FIGURE 7 - 8, plus .002
” for crush fit, to
determine the thickness of the shim set.
EXAMPLE FOR 5CDL13 BLOWER:
Micrometer reading of .005
” plus .021” total end
clearance plus .002
” for crush gives a shim set
thickness of .028
”.
TIMING MARKS
FIGURE 7- 9
FIGURE 7- 10
Содержание 5CDL-R Series
Страница 14: ...37 1 613 Page 13 FIGURE 2 3 BELT DRIVE OVERHUNG LOAD CALCULATIONS...
Страница 17: ...37 1 613 Page 16 TOP INLET MAIN ROTOR DRIVE FIGURE 2 4 OUTLINE DIMENSIONS...
Страница 30: ...37 1 613 Page 29 SECTION 5 PARTS LIST FOR LIST OF PARTS SEE PAGES 30 31 301CBH810 00 Ref Drawing...
Страница 40: ...37 1 613 Page 39 FIGURE 6 10 FIGURE 6 11 JACK SCREWS...
