TK 56433-5-MM-EN
91
Figure 120.
Lower Condenser Blower Assembly
1.
Spindle Mounting
Bracket
5.
Bearing
2.
Blower Spindle
6.
Blower Hub
3.
Wave Washer
7.
Snap Ring
4.
Blower Pulley
8.
Blower
Reassembly
IIm
mp
po
orrtta
an
ntt:: To prevent damage to the bearings, use
bearing drivers (or other suitable tools) on
the bearing races when installing the
bearings.
1. Install the bearings in the hub.
2. Place the wave washers on the spindle.
3. Insert the spindle and wave washers into the
blower hub.
4. Install the snap ring.
Installation
1. Place the lower condenser blower assembly in
position and install the hardware that fastens the
blower spindle to the spindle mounting bracket.
2. Install the lower condenser inlet orifice. Center it in
the lower condenser blower and tighten the
mounting hardware (see “Condenser Inlet Orifice
Alignment” above).
3. Install the fan drive belt. See “Fan Drive Belt” in the
Engine Maintenance Chapter.
Cross Shaft Assembly
The unit is equipped with a cross shaft assembly that
contains special sealed bearings. The bearings should
be checked when the belt is replaced. Spin the cross
shaft with the belt removed and listen. Unusually loud
bearing noise indicates the cross shaft bearings should
be replaced.
Removal
1. Remove the fan drive belt. See “Fan Drive Belt” in
the Engine Maintenance Chapter.
2. Remove the engine/cross shaft belt. See “Engine/
Cross Shaft Belt” in the Engine Maintenance
Chapter.
3. Loosen the pinch bolts on the cross shaft/fan pulley
and remove it from the cross shaft.
4. Loosen the pinch bolts on the cross shaft/engine
pulley and remove it from the cross shaft.
5. Mark one or both ends of the cross shaft housing to
identify which is the engine pulley end and which is
the fan pulley end.
6. Remove the cross shaft mounting bolts and remove
the cross shaft.
Disassembly
1. Remove the snap rings.
2. Remove the cross shaft from the housing by
tapping on either end of the cross shaft with a soft
hammer. Make sure to avoid damaging the end of
the shaft, which can make it difficult to remove/
install the bearings.
N
No
otte
e:: The engine pulley end of the cross shaft has a
threaded hole in it, and the fan pulley end
does not.
3. Remove the bearing from the shaft by supporting
the bearing and tapping on the end of the shaft with
a soft hammer.
4. Remove the bearing from the housing with a
hammer and punch.
5. Clean and inspect the parts, but do not clean the
bearings in solvent. Replace the parts that show
significant wear or damage.
