
6270A
Service Manual
64
Note
Make sure to not interchange the coils or valves between
apply/release valves.
a. Use a 3/4 inch wrench and remove the coil-retaining nut
from the
control valve (apply) coil
or (release) coil
. This should only be hand
tight or very loosely tightened with a 3/4 inch wrench.
b. Remove the coil for the valve to be inspected or replaced.
c. Remove the four screws
with a # 2 Phillips screwdriver and remove
entire valve assembly.
d. Inspect the valve by using a 7/8 inch deep socket or open wrench to
remove the valve stem
from the valve base
.
To install the valves, reverse these steps.
Inspect the Control Valves
To inspect the control valves, see Figure 37:
1. After the control valve is removed as detailed in the
Removing Control Valves
section, inspect the valve-body surface
and valve-base orifice
to make
sure no damage, particles, or contamination exists. The Product ships with
blue color material on the valve body
.
2. Make sure the shim
is installed in the valve shaft. If not installed, poor
control and a loud buzzing sound in the control results.
3. Verify the valve assembly order
.
2
1
D
4
B
C
A
3
hxn405.eps
Figure 37. Internal Valve Inspection
Содержание 6270A
Страница 5: ...Contents continued iii Inspect and Replace the CPS valves 122 Replacement Parts 124 Screw Torque 136...
Страница 6: ...6270A Service Manual iv...
Страница 26: ...6270A Service Manual 20 2 1 3 hxn212 eps Figure 7 PMM and PCM Removal...
Страница 30: ...6270A Service Manual 24 1 2 3 hxn205 eps Figure 9 Manifold Installation...
Страница 32: ...6270A Service Manual 26 2 1 1 hxn202 eps Figure 10 Remove Feet and Tilt Stands...
Страница 37: ...Pressure Controller Calibrator Module Guide Rails 31 1 2 3 hxn209 eps Figure 13 Remove Module Guide Rails...
Страница 40: ...6270A Service Manual 34 hxn208 eps Figure 16 Remove the CPU...
Страница 43: ...Pressure Controller Calibrator Module Guide Rails 37 8 9 10 hxn219 eps Figure 18 Dock Assembly...
Страница 47: ...Pressure Controller Calibrator Module Guide Rails 41 2 3 1 4 6 7 5 8 hxn215 eps Figure 21 Remove B Series Valve...
Страница 53: ...Pressure Controller Calibrator Power Supply and Fan 47 3 1 2 4 hxn221 eps Figure 25 Remove Power Supply...
Страница 64: ...6270A Service Manual 58 1 2 3 4 5 7 6 hxn210 eps Figure 32 Remove Latch Assembly...
Страница 67: ...Pressure Controller Calibrator PCM Assembly 61 2 1 hxn401 eps Figure 34 Module Components...
Страница 138: ...6270A Service Manual 132 9 2 5 18 7 9 8 2x 9 5x 3 4x 4 3x 7 2x 11 12 13 6 10 hxn509 eps Figure 56 PMM CAL KIT 20M Parts...