9. Remove backhead (the bearing is press fit into
the backhead).
10. Place backhead on flat surface with impeller side
down and press out shaft seal.
11. Place impeller on flat surface with vane side
down and with screwdriver and hammer break
ceramic seal ring into several pieces and remove.
Next, remove rubber seal ring cup from impeller.
12. Remove bearings from armature shaft (press-fit
on shaft).
13. Inspect the armature commutator bars. The
environment in which the unit has been operating
will have influence on the condition of the
commutator. Airborne dust an dirt will accelerate
wear. A rough or scarred appearance may
dictate having commutator reconditioned before
reassembly. Use a stiff nylon brush to clean
carbon from between commutator bars.
14. To reassemble, install new bearings on the shaft.
Always press against the inner race to prevent
bearing damage. Make sure bearings are tight
against the shaft shoulders.
15. Place rubber water slinger flat inside seal cavity
on front side of backhead
backhead. When pressing shaft seal into place,
apply force to the cup flange. Avoid touching the
polished seal surface; oil or scratches on this
surface may cause premature failure of the seal.
16. Press ceramic side of seal into impeller, ceramic
side out. Avoid touching ceramic with hands as oil
may cause premature failure of the seal. Wipe oil
off both sides of seal with a soft, lint-free cloth.
TROUBLESHOOTING CHART
Symptom
Possible Cause(s)
Pump will not
1. Blown fuse
start or run
2. Low line voltage
3. Worn brushes
4. Impeller obstructed
5. Defective motor
Pump will not
1. Air leak in suction line
prime or retain
2. Impeller obstructed
prime after
3. Worn seal
operating
4. Suction lift too high
5. Hose kinked or looped
6. Fittings not tight
7. Suction hose out of water
8. Clogged inlet and/or suction line
Flow rate is too
1. Piping or hose is fouled or
low
damaged
2. Low line voltage
Seal leaks
1. Worn seal
2. Shaft grooved
3. Pump head loose on motor
Model TP-500K – Operating Instructions and Parts Manual
Press shaft seal into
.
Ridge Tool Company
17. Reassemble unit in reverse order, beginning
with step 9. Use caution when sliding rotor shaft
through backhead and water slinger not to pinch
or damage water slinger (see page 6).
18. After reassembly check shaft for free rotation with
screwdriver in fan through air exit openings.
SERVICE AND REPAIR
on this pump must be performed by qualified repair
personnel.
Maintenance of the pump by persons
unfamiliar with the pump components COULD result in
serious personal injury.
pump, only identical RIDGID replacement parts should
be used. Failure to follow these steps COULD cause,
property damage, fatal electrical shock, or other
serious injury.
If you have any questions regarding the service or
repair of this machine, call or write to:
RIDGID Water Systems
Attn: Customer Service Department
101 Production Drive
Harrison, Ohio 45030
For name and address of your nearest Independent
Authorized Service Center, contact the Ridge Tool
Company at http://www.RIDGID.com
For Customer Service, call 1-877-9RIDGID.
Corrective Action
1. If blown, replace with proper sized fuse or reset breaker
2. If voltage is under 108 volts, check wiring size
3. Replace brushes
4. Remove blockage
5. Replace pump
1. Repair or replace suction line
2. Remove blockage
3. Replace seal
4. Lower pump
5. Straighten hose
6. Tighten fi ttings
7. Submerge suction hose end
8. Clean inlet and/or suction line
1. Clean or replace
2. If voltage is under 108 volts, check wiring size
1. Replace seal
2. Replace pump
3. Insure proper assembly and no obstruction, tighten bolts
Service and repair work
When servicing this
5