TK 61555-2-MM-EN
131
Reassembly
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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.
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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.
