Click here to make tpub.com your Home Page

Page Title: Table 2-1. Functions of Controls, Indicators, and Connections (cont)
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

TM 5-4130-234-13&P
Functions of Controls, Indicators, and Connections (cont)
Panel Marking
Index No.
and/ or Reference
Control, Indicator
Designation
or Connection
Function
Displays quantity of refrigerant in reservoir.
8
SG1
Scale
Measures high pressure.
9
REFRIG. GAUGE GA1
Gage
Measures low pressure.
10
REFRIG. GAUGE GA2
Gage
To control refrigeration oil from beaker.
11
OIL FILL-CHARGE V7
Valve
To control filing of refrigerant reservoir.
12
REFRIG. CHARGE SYS FILL V5
Valve
To provide vacuum pump oil dram.
13
V8
Valve
To control charging of refrigeration system with refrigerant.
14
REFRIG. CHARGE SYS V4
Valve
To provide oil level indication for vacuum pump.
15
---
Glass Disk
Valve To provide vent for vacuum pump.
16
---
Vented-Exhaust
To connect gage GA2 to a pressure source.
17
LOW PRESS CP2
Union
To connect gage GA1 to a pressure source.
18
HI PRESS CP1
Union
Provides electrical connection for leak detector.
19
OUTPUT J1
Connector
Provides for connection of service unit to electric source.
20
PI
Connector
Selects reservoir heater or vacuum pump for operation.
21
HEATER ON OFF VAC ON S1
Switch
Controls electrical power to service unit.
22
115 V 60 HZ PWR ON-OFF CB1
Circuit Breaker
Indicates electrical power is applied to service unit, when lit.
23
115 V 60 HZ PWR,
Lamp
To connect refrigeration system to vacuum system.
24
VAC CP4
Union
To connect refrigeration system to vacuum system.
25
VAC CP3
Union
Measures vacuum pressure from sensing element of thermistor
26
M1
Gage
MT1.
c.  Check that vacuum pump exhaust valve (16) is
a. Vent reservoir by uncapping and opening valves
finger torqued to closed (clockwise).
(5, 12, 14, fig. 2-3).
d. Close valve 113. Set circuit breaker (22) to ON:
b. Evacuate reservoir and lines as follows:
lamp (231 must light.  Set switch (21) to VAC ON and
(1) Cap union (25).
observe gage (26) to make certain system will evacuate to
(2) Connect hose assembly (8, fig. 2-4) with
50 microns.
gaskets (2, 3) between union (24, fig. 2-3) and valve (5).
e. Set switch (21) and circuit breaker (22) to OFF.
(3) Open valves (1, 2).
(4) Close and cap valves (12, 14).
WARNING
(5) Set circuit breaker (22) to ON and switch (21)
Exercise care when flushing or cleaning
to VAC ON. Evacuate system to 200 microns as indicated
parts  with  refrigerant  to  prevent
on gage (26).
refrigerant from getting in the eyes or
(6) Close valve (5) and set switch (21) to OFF.
permanent damage to the eyes may
c.  Warm or elevate liquid refrigerant bottle (Type
result.
F114, Federal Specification BB-F-1421)) to expedite filling.
f.  Make certain all hose assemblies and lines are free
d. Remove hose assembly between union (24) and
If any doubt exists as to the
valve (5), and remove cap from valve (12).
cleanliness of hose assemblies and lines, flush each part
e. Loosely connect hose assembly (5, fig. 2-4) with
with refrigerant before connection to service unit of
gaskets (3) to valve (12. fig. 2-3) and connect other end of
refrigeration system.
hose assembly to the inverted refrigerant bottle.
NOTE
Since there are five basic modes of
operation of the service unit and each
Key to fig. 2-4:
7.
Hose Assembly
modes is not necessarily dependent on the
1. Cable Assembly
8.
Hose Assembly
others, operating instructions for each
2. Gasket
9.
Hose Assembly
mode are presented separately. See plate
3. Gasket
10.
(182, fig. 5-2) for operating instructions and
4. Gasket
11
Detector, Leak
figures 2-1 and 2-2 for electrical and fluid
5. Hose Assembly
12.
Oil
schematics.  See figure 2-3 for controls,
6. Hose Assembly
13.
Pump, Oil
indicators, and connections and table 2-1
for their functions
2-3.
Filling Reservoir with Refrigerant
NOTE
When reservoir is partially full omit steps a
and b and proceed directly to step c.
2-6

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business