ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0052 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
REVERSE OSMOSIS SYSTEM
PUMP BEARING
THRUST
O-RING
BEARING
THRUST LINE ASSEMBLY
PLUG
TURBINE
PUMP
IMPELLER
STRAIGHT ADAPTER
BEARING
CENTER BEARING
CAP O-RING
RETAINING RING
PUMP
END CAP
TURBINE
END CAP
IMPELLER
THRUST
KEY
BEARING
CAP O-RING
O-RING
CENTER BEARING O-RINGS
WASHER
PUMP IMPELLER
SCREW
Figure 25. Pressure Recovery Turbocharger PRT-1.
NOTE
Light scratches are normal and not a reason to replace the components.
4. Inspect the bearing surfaces of the turbine impeller/shaft assembly for grooves or ridges. If you
find grooves or ridges, or excessive wear of the impeller, replace the impeller/shaft assembly.
CAUTION
Attempting to remove the bearings may result in damage to the bearings. Do not
remove the bearings unless you intend to replace them.
5. Inspect the pump bearing, center bearing, and turbine thrust bearing for cracks, grooves, or
ridges. Replace any damaged bearings as described in the following steps.
6. If needed, replace the pump bearing as follows (see Figure 25):
a. Place the pump end cap with the bearing side facing up.
b. Remove the pump bearing retaining ring.
c. Pry out the bearing. Discard the bearing and O-ring.
d. Clean the bearing bore with a clean rag.
e. Place a new O-ring into the groove on the new bearing. Lubricate the O-ring and
bearing bore in the end cap with glycerin.
f. Insert the bearing into the bearing bore until it is fully seated, making sure the O-ring is
not pinched.
g. Install the bearing retaining ring.
7. If needed, replace the center bearing as follows (see Figure Figure 25):
a. Place the turbocharger casing horizontally on a clean surface.
b. Remove the center bearing retaining ring.
c. Gently tap the center bearing toward the pump end of the casing until it is free of the
bearing bore. Discard the bearing and the two O-rings.
0052 00-31
