Disassembly and Reassembly
56
d. Use an impact wrench to tighten the large
top bolt on the bearing removal tool and
push the bearing and crankshaft out of the
compressor body. Do not attempt to push
the bearing and crankshaft out of the
compressor body without heating or it will
damage the compressor body and the
bearing.
Figure 87: Removing Crankshaft
Repair
IMPORTANT: Crankshafts for compressors
with the pressurized seal cavity and the hex drive
seal are not repairable and must be replaced as
an assembly. These crankshafts have a hex drive
collar pressed on in front of the drive end
bearing as shown below.
1. Check the condition of main bearings by
pressing on the bearing while turning it.
NOTE: Thermo King recommends replacing
all main bearings during compressor repairs
that involve removing the crankshaft.
2. If necessary use the bearing puller tool P/N
204-1000 to remove the ball bearings from the
compressor crankshaft.
3. Place the crankshaft in the tool so that two
vertical bars support the inner race of the ball
bearing.
4. Place the included spindle on the pump end of
the crankshaft and press off the bearing.
5. Rotate the crankshaft 180 degrees and press
off the other bearing.
DO NOT
use the
spindle because it could jam on the taper of
the crankshaft nose.
1.
Hex Drive Collar
Figure 88: Pressurized Seal Cavity Crankshaft
1
1.
Vertical Bars Support Inner Race
2.
Spindle for Oil Pump End
Figure 89: Pressing Bearing Off Oil Pump End
AGA773
1
2
