Disassembly and Reassembly
54
Crankshaft
Removal
1. Remove the cylinder heads (see “Cylinder
Head” on page 32), the discharge valve plates
(see “Discharge Valve Plates” on page 33), the
seal plate (see “Seal Plate Assembly” on page
35), the oil sump and the oil pickup screen
(see “Oil Sump and Oil Pickup Screen” on
page 44), the oil pump (see “Oil Pump” on
page 47) and the connecting rods, pistons and
sleeves (see “Connecting Rod, Piston and
Sleeve” on page 51).
2. If needed, use slide hammer P/N 204-638 to
remove the oil pump housing. Attach the slide
hammer to the oil pump housing with two
5/16 in. bolts. Use caution to prevent damage
to the oil pump housing.
Figure 81: Remove Oil Pump Housing
3. Use one of the following procedures to
remove the crankshaft.
Old Design Compressor with Aluminium
Oil Pump Housing and C3 Bearing
- Set the
compressor on the oil pump end with the seal
end up. Use an oxy-acetylene torch with a
large rosebud tip to carefully and uniformly
heat the area around the seal end bearing and
monitor the temperature with a noncontact
thermometer P/N 204-1059 (or similar). The
crankshaft and bearing will typically slip out
of the compressor body before the temperature
reaches 200 F (93 C). If not, use Bearing
Removal Tool P/N 204-1153 to remove the
crankshaft and bearing (see the following
procedure). Do not heat the area around the
seal end bearing above 350 F (177 C). Do not
attempt to drive the bearing out of the
compressor body without heating or it will
damage the compressor body.
NOTE: If required, Bearing Removal Tool
P/N 204-1153 can be used to remove a
crankshaft with a C3 bearing. See the
following procedure.
New Design Compressor with Cast Iron
(Black Paint Color) Oil Pump Housing and
C5 Bearing
- Use the following procedure:
a. Set the compressor on the oil pump end
with the seal end up.
b. Install the Bearing Removal Tool P/N
204-1153 on the seal end of the
compressor as shown in Figure 82 and
Figure 83. Position the two vertical tubes
on the tool to the top and bottom of the
compressor body as shown in Figure 83.
This positions the slots in the tool to
provide the best access for heating the area
around the seal end bearing.
WARNING: The removal and installation
of the crankshaft requires that the
compressor body be heated. Make sure to
wear heat resistant gloves and eye
protection when preforming these
procedures. It is also recommended that
an assistant be available to help with these
procedures.
AGA571
