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REPLACING SHAFT SEAL

REPLACING OLD SEAL

1. Follow steps 1 through 7 under Cleaning/Replacing Impeller

(above) for pump disassembly.

2. Remove rotating half of seal by placing two screwdrivers under

seal plate and carefully prying up (Figure 11). Seal plate will slide
off shaft, bringing seal with it.

FIGURE 11

NOTICE: Be sure you do not scratch or mar shaft; if shaft is
marred, it must be dressed smooth with fine emery or crocus
cloth before installing new seal.

3. Place seal plate face down on flat surface and tap out stationary

half of seal. NOTICE: Be sure you tap on ceramic seat, not on
copper insert. Do not disturb copper insert.

INSTALLING NEW SEAL

1. Clean seal cavity in copper insert. Do not disturb copper

insert. (If insert is moved or dislodged, see instructions for
Installing Copper Insert.)

2. Wet outer edge of “O” Ring on ceramic seat with liquid soap. Be

sparing!

3. With thumb pressure, press ceramic seal half firmly and squarely

into seal cavity in copper insert (Figure 12). Polished face of
ceramic seat faces inside of pump. If seal will not seat correctly,
remove it and reclean cavity, placing seal face up on bench.
Seal should now seat correctly.

FIGURE 12

4. If seal does not seat correctly after recleaning cavity, place a

cardboard washer over polished seal face and carefully press
into place using a piece of standard 3/4” pipe as a press.
NOTICE: Be sure you do not scratch seal face.

5. Dispose of cardboard washer and recheck seal face to be sure it

is free of dirt, foreign particles, scratches and grease.

6. Inspect shaft to be sure it is free of nicks and scratches.
7. Reinstall seal plate on motor flange, making sure that it is right

side up (index pins down; top of plate is marked).

8. Apply liquid detergent sparingly to inside diameter of rotating

seal member.

9. Slide rotating seal member (carbon face first) onto shaft until rub-

ber drive ring hits shaft shoulder. 
NOTICE:  BE SURE not to nick or scratch carbon face of seal
when passing it over threaded shaft end or shaft shoulder.

10. Hold motor shaft with 7/16” open end wrench on shaft flat and

screw impeller onto shaft. This will automatically locate seal in
correct position.

11. Reinstall diffuser on seal plate with two screws.
12. Follow steps 7 through 12 under Cleaning Shallow Well Jet

(above) for pump reassembly.

INSTALLING STAINLESS STEEL INSERT

NOTE:  If the stainless steel insert moves or shifts during seal
removal, it should be removed and reinstalled.
1. Remove stainless steel insert as shown in Figure 13. Do not
deform.

FIGURE 13

2. Replace stainless steel insert:

A. Clean off all surplus Permatex* from around insert cavity. Be

careful not to scratch or mark the machined bore. It is important
that this area be clean so no old Permatex lodges behind the
new insert and causes improper seating.

B. Place small amount of No. 2 non-hardening Permatex on surface

of insert as shown. Smooth out with finger. See Figure 14.

FIGURE 14

C. Pull insert into cavity as shown in Figure 15.

FIGURE 15

8

506 0194

507 0194

Wipe on small amount of
non-hardening Permatex

on this surface

756 0993

7/8" Socket

Bolt

1-3/8" O.D.

Washer

038 0893

To Disassemble

Содержание PNB-1L

Страница 1: ...ON AND OPERATING INSTRUCTIONS REPAIR PARTS LIST Corrosion Resistant Shallow Well Jet Pump PRINTED IN U S A S151 Rev 4 17 95 MODELS 1 3 HP 1 2 HP 3 4 HP PNB 1L PNC 1L PND 1L PNCSS STA RITE INDUSTRIES INC DELAVAN WISCONSIN 53115 ...

Страница 2: ...areas To avoid over pressure hazard and possible injury install pressure relief valve capable of passing full pump flow at 75 PSI Pressurized suction may cause pump body to explode Do not touch an operating motor Modern motors are designed to operate at high temperatures To avoid burns when servicing pump allow it to cool for 20 minutes after shut down before handling IMPORTANT TANK SYSTEMS Be sur...

Страница 3: ...servicing Leave room to use wrenches 10 Pump body may explode if used as booster pump unless relief valve capable of passing entire pump flow at 75PSI is installed 11 Be sure to prime pump before starting Water acts as lubricant Starting without water will cause internal damage and void war ranty PUMP PIPING INSTALLATION PUMP INSTALLATION NOTICE Use Teflon tape supplied with pump for making all th...

Страница 4: ... and AVC for details PRE CHARGED TANK CONNECTION FIG 5 When pre charged tank is used no AVC is necessary Pre charged tank contains factory provided air charge NOTICE Your pump pressure switch is set for a 30 50 PSI range and requires tank pre charge of 28 PSI for proper operation See tank owner s manual for instructions on checking tank air charge An annual check on tank charge is recommended to p...

Страница 5: ...rime and fail to pump Install foot valve 10 20 ft below lowest level to which water will drop while pump is oper ating pumping water level Contact your local well driller for more information 3 To prevent sand and sediment from entering pumping system foot valve strainer should be at least 5 ft above bottom of well 4 When proper depth is reached install sanitary well seal over pipe and in well cas...

Страница 6: ... is perma nently grounded otherwise serious or fatal electrical shock haz ard may be caused 4 For best ground connection connect to grounded lead in service panel or to metal underground water pipe or well casing at least 10 ft long If plastic pipe or insulated fittings are used run ground wire directly to metal well casing or use ground electrode furnished by the power company TO CONNECT PRESSURE...

Страница 7: ...nnect power 2 Remove pressure switch tube from pump body and allow pump to drain 3 Remove four hexnuts Key No 23 Page 11 which hold the pump body to the motor 4 Remove motor seal plate impeller and diffuser Key Nos 1 3 7 9 Page 11 as a unit 5 Carefully insert an icepick or other small diameter pointed tool into venturi Key No 17 Page 11 and into nozzle behind ven turi Key No 16 Page 11 dislodging ...

Страница 8: ... sure it is free of dirt foreign particles scratches and grease 6 Inspect shaft to be sure it is free of nicks and scratches 7 Reinstall seal plate on motor flange making sure that it is right side up index pins down top of plate is marked 8 Apply liquid detergent sparingly to inside diameter of rotating seal member 9 Slide rotating seal member carbon face first onto shaft until rub ber drive ring...

Страница 9: ... 17 Since the gases rise in the well casing the water sucked down through the pipe and into the suction pipe is free of gas This type of well must be vented to the outside of any enclo sure AIR CONTROL IN FLOWING WELLS Flowing wells or wells with little or no drawdown could create a special problem in air control in the operation of your water sys tems In such cases install a Con Aire Tank It does...

Страница 10: ...ry pipes below frost line Heat pit or pump house Foot valve and or strainer are Raise foot valve and or strainer above well bottom buried in sand or mud Water level in well A deep well jet pump or submersible is needed is below 25 Pump does not Water level in well is lower than A larger pump may be needed deliver water to full estimated capacity Steel piping if used is corroded or Replace with pla...

Страница 11: ...8SS U30 738SS U30 738SS 11 Tank Body Ass y incl 12 thru 18 1 N176 35P N176 35P N176 35PA N176 35P 12 Tank Body 1 N76 35P N76 35P N76 35P N76 35P 12A Pipe Plug 1 8 NPT Taped 1 WC78 41T WC78 41T WC78 41T WC78 40T 13 Gasket Plastic 1 J20 18 J20 18 J20 18 J20 18 14 Tank Jet Body Insert 1 N76 29P N76 29P N76 29P N76 29P 15 Capscrew 10 16 4 U30 742SS U30 742SS U30 742SS U30 742SS 16 Nozzle 1 N34P 19 N34...

Страница 12: ...warranty is void Buyer s only remedy and Sta Rite s only duty is to repair or replace defective products at Sta Rite s choice Buyer agrees to pay all labor and shipping charges associated with this warranty and to request warranty ser vice through the installing dealer as soon as a problem is discovered If warranty service is requested more than 30 days after the Warranty Period has ended it will ...

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