Carrier 07E - Manual (Page 9)

b. stop compressor and isolate from system by
closing discharge shutoff valve.
c. Bleed any residual refrigerant. Drain oil if
necessary.
4. After disassembly, clean all parts with solvent.
Use mineral spirits, white gasoline or naptha.
5. Before assembly, coat all parts with compressor
oil and clean and inspect all gasket surfaces.
Replace all gaskets with new factory-made
gaskets. See Table 4 for torque values.
6. After reassembly, evacuate compressor and
open suction and discharge valves. Restart
compressor and adjust refrigerant charge.
Legend (Fig. 12)
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(S)
Compressor Motor-
Stator and Rotor
Motor Key
Rotor Plate Washer
Rotor Lock Washer
Rotor Lock Bolt
Motor Lock Bushing
Roll Pin
Acorn Nut and Gasket
Ring Spacer
Junction Box
Fiame Arrestor
Terminal Plate Assembly
Terminal Bolt Assembly
Terminal Bolt Assembly
Terminal Bolt Assembly
Cover Plate
Hex Head Screw
Compressor Crankcase
Motor End Cover
Cylinder Head —
Center Bank
Cylinder Head - Ca­
pacity Control Side Bank
Internal Relief Valve
Crankcase Oil Filter
Screen
Oil Sight Glass Assembly
Oil Sight Glass "O”
Ring Gasket
Oil Sight Glass Screw
Oil Sight Glass Lock
Washer
Pipe Plug Gasket
(hex head)
Bottom Cover Plate
(30) Pump End Bearing
Head Package
(0 Pump Rotor
(3^ Pump Vane
(3^ Pump Vane Spring
(3^ Pump Vane Spring
Guide
(3^ Retaining Spring
(3^ Oil Feed Guide Vane
(3^ Oil Feed Guide Vane
Spring
(3^ Oil Pump Drive
Segment
(3^ Screw, Soc Head
^ 1/4 - 28 X 5/8 in.
(4^ Screw, Soc Head no 10
^ - 3 2 x 1 / 2 in
(0 Cover Plate
(42) Cover Plate Cap Screw
Oil Relief Piston
(0) Crankshaft
(0 Bearing Washer
(0) Piston Ring (Oil and
Compression)
(0) Piston, Piston Pin and
Retaining Ring Package
(0) Connecting Rod and
Cap Assembly
(0) Valve Plate Package
(0) Valve Plate
0) Discharge Valve Stop
(0) Discharge Valve
(0) Valve Stop Support
(0) Cap Screw, Valve Stop
(55) Suction Valve
LUBRICATION SYSTEM
Testing Oil Pump — An oil pressure tap is located
above oil pump cover plate (Fig. 13). Oil pressure
should be 12 - 18 psi above suction pressure.
REMOVE 8 CAP SCREWS
OIL PRESSURE TAP
ORIVE SEGMENT CAP SCREWS
PUMP END BEARING HEAD
OIL FEED GUIDE VANE
AND SPRING
COVER
PLATE
Fig. 13 — Removing Pump End Bearing Head
OIL FILTER SCREEN is accessible thru bottom
cover plate. Remove and inspect strainer for holes
and dirt. Clean it with solvent and replace.
Oil Pump and Bearing Head — The oil pump
assembly is contained in the pump end bearing
head aluminum casting. (The pump end main
bearing is a machined part of this casting — no
insert bearing.)
REMOVE bearing head from crankcase and
disassemble oil pump. Drive segment cap screws
must be removed before bearing head can be
removed (Fig. 13). Remove pump vane assemblies
from both sides of bearing head. Push the pump
rotor out of the bearing head by pushing against
the bearing side of the rotor. Check all parts
(Fig. 14) for wear and damage.
REPLACE
1. Install the rotor retaining ring in the ring groove
of the pump rotor with chamfered edge toward
compressor. Compress retaining ring, and insert
pump rotor into bearing head.
2. Place the pump vanes, pump vane springs with
guides, and snap rings into the bearing head.
Compress the springs and force the snap rings
into their grooves. (Insert snap rings with flat
side against casting.)
3. Bolt bearing head to crankcase (use 55 to 65
ft-lb torque). Bolt drive segment to crankshaft.
4. Insert the oil feed guide vane with large
diameter inward. Place oil feed guide vane
spring over small diameter of guide vane.
5. Install pump cover plate.