7 . 1

TROUBLE SHOOTING INDEX

Section 7

Page Referenc e7.2 Table

7.4 Sweep

7.6 Distributor—Bi n

7.7 Cushion—Pit Assembl y

7 .9 Chassis, Genera l

7.11 Trouble Shooting Procedure s

7.11 Burnishing Relay Contact s

7.12 Motor and Switch Tests

7.13 Motor Capacitors

7.2

TABLE TROUBLE S

TroubleTable will not feel for pins(1st ball light on )

Respot cells will not pick u ppins or drops pins

No pindicator lights . 10 pin soriginally picked up by tabl eand indicated on masking uni t

Table runs continuousl y

Table stops before zeropositio n1st ball-sweep down, tim edelay, sweep runs and cleansoff all pins and comes t oguard . Table does not com edown1st ball-sweep down to guar dposition, table continues to ru nPin light on, no pin in gripper

Pin in gripper, no pindicato rlight o n

First ball, sweep starts towardpit, table starts up with pins i ngripper, both stop, neither wil lrun with SA or TA-1

CauseGripper protection switch ou tof adjustment or broke nRespot cells in closed positio nDefective time delay uni tTable connection plug loose o rbroke nRespot rod out of adjustment .Respot cells (one or more ou tof adjustment)If one cell only—checkcondition of fingers and cel ladjusting screw

Cell linkage binding or broke nThermal overload operated(Bowler too slow in deliveringball )Triac defectiv eTA1 adjusting screw turne dout too fa rTA1 adjusting screw turned i ntoo fa rTA2 adjusting screw turne dout too fa r

TA2 adjusting screw turned i ntoo fa rWire off gripper and touchingfram eCircuit grounded

Board defectiveWire disconnected or broke non gripper switchCircuit open from gripper tochassi sCircuit open in chassis board

Defective tria cTB adjusting screw out ofadjustment

Test—RemedyAdjust, replace

Open cells manuall yReplace chassisRepair or replac e

Adjust rod check with gaug e(ref . page 5 .21) ST-651 9

Replace or adjus t

Repair or replac eNormal operation, lamps wil llight after load cool s

Replace triacCheck with gauge ST-2748 ,adjust . ref . page 5 .29As above .

As step before

Check with gauge, ST-2748 ,adjust ref . page 5 .29Visual, repair or replac e

Use testing procedure fo rgroundsReplace boar dVisual, repair or replac e

Use testing procedure fo ropensReplace and repair chassi sboardReplace triacCheck with gauge, ST-2748 .Adjust ref . page 5 .29

7 . 3

Trouble

Pin fell over during spotting

TABLE TROUBLE S

Cause

Chipped or badly worn pi nbaseExcessive wear in spottin glinkageSpotting cup loose

Spotting cup bent out of shap eSpotting rod out of adjustmentYoke out of adjustment

Test—Remedy

Visual, replace pi n

Visual, replace necessarypartsVisual, tightenVisual, repai rSee table adjustment sSee table adjustments

7 .4

Trouble

Sweep runs up, down, an dstarts through to clean off th edeck a second time as th etable spots pins. Table an dsweep stop because o finterlock

Sweep overruns all stoppin gpositionsSweep motor overloads trip tooff positio n

Sweep hits gutter at 66° guardposition

Continuous sweep run

After cycle starts sweep run scontinuousl y1st ball—after time delay th etable comes down, sweepstarts, and stops under th etable as it comes down torespot pins, table stops1st ball—sweep down, tabl edown about half way an dstops. Table and sweep wil lnot move by lifting TA or S ASweep arms hit frame ofmachine at zero position

1st ball—table down and picksup standing pins, but does notrespot them . Sweep remain sat guard position (66° )1st ball—table comes down ontop of an off spot pin, thus notpicking up the pins . The nsweep cleans off all pins bot hstanding and down, tablecomes down, spots pins, tablegoes up, sweep up, strike ligh ton2nd ball or strike-table will no tspot pins, bins loaded wit hpins but will not drop the pin sinto spotting cups

SWEEP TROUBLE S

Cause

SA out of adjustment

Sweep cams not adjuste dproperlyDefective capacito r

Bind in sweep drive assembl yRubber bumper 7283 worn

Guide tube or rod assembl yout of adjustmen tSA adjusting screw turned outtoo fa rSB adjusting screw turned i ntoo fa rSB adjusting screw turned i ntoo fa r

SC adjusting screw turned ou ttoo fa r

Readjust sweep link arm t oallow sweep to run backfurther

Off spot switch adjusting scre wscrewed out too far

Off spot adjusting scre wturned in too far . Wire offswitch or binding againstframe of machine

BS switch or lever defective

Test—Remedy

Check with gauge ST-2748 ,adjust ref . page 5 .1 8

Check with gauge ST-2748 ,adjust ref . page 5 .1 8Replace capacito r

Inspect and repai rReplace

Adjust, ref . page 5 .20

Check with gauge ST-2748 ,ref . page 5 .1 8As step before

Check with gauge ST-2748 ,ref . page 5 .1 8

As above

Run machine, observ eoperation . See sweep linkag eadjustmentsCheck with gauge ST-2748 ref .page 5 .28

Inspect, repair or adjust a sabove

Depress switch manuall y

Broken wire at off spot switch

7 . 5

SWEEP TROUBLES

Trouble

1st ball cycle complete dsuccessfully but sweep run sthrough again . On 2nd bal lsweep runs but does not sta yat guard while pins are spotted .Sweep not stopping at correc tposition .A) Guard positio nB) Run throughC) ZeroSweep runs too far into pi tarea .

Sweep travel too short

Cause

SA adjusting screw turned i ntoo fa r

Sweep cam switches notadjusted properl y

Sweep connecting rods out o fadjustment . Sweep crank ar mrod too lon gSweep connecting rods out o fadjustment . Sweep crank ar mtoo short

Test—Remedy

Check with gauge ST-2748 ref .page 5 .1 8

Check with gauge ST-2748 ,adjust . rotate cams to getcorrect stopping position .Ref . page 5 .1 8

See adjustment section . Ref .page 5 .20

As above

7.6

DISTRIBUTOR-BIN TROUBLES

Trouble

CauseDistributor will not feed pins at

Distributor drive cam no tcorrect position

matched with pinion gea r

Distributor not centere dproperl y

Pins feed continuously at one

Distributor clutch out o fdistributor location

adjustmen tDistributor rollers out o fadjustmen t

Head first pins delivered to bin

Pins not orienting properl ypockets

Test—RemedyCheck bumps on nylon gea rwith punch marks on pinio ngearRun distributor to #1 bin an dcenter using 6047 safety linkfor adjustmentCheck spring tensio n

See adj . section dist . rolle radj .

Distributor front end hits bi nduring pin feed

A) Pin slow in orienting, put-ting 2 pins on distributo rtoo close togethe r

B) Pin stuck in whee lC) Dirty pins or elevator whee l

D) Pins not seated in elevato rwheel pocket s

E) Pin rail 6098 or 6099 looseor out of adjustment

Front end hardware loose

Check orientor pan (clean )

Oversized pin (replace)Clean pins and elevator whee lAdjust pin seating ro d

Observe pin release an dadjust rail as required, to hol dpin in wheel securely an drelease pin at the center of th eorienting pan at the #1 pi npositio nAdjust and tighte n

Distributor support assembl y#7357 too low

Place shims between supportass'y. and cross bar asrequired

7 .7

CUSHION-PIT TROUBLE S

CauseCushion leather stretche dRubber rivet interferenc e

Bounce plate support bracke tloose or broken

Ball idles at exit, will not enter

Ball lift too lowlift

TroubleBall idles at cushion

Test—RemedyCut off exces sReplace broken rivetRepair or replace

Adjust bumpers

Ball failed to start machin e

Machine continues to cycl e

Ball lift fails to elevate ball

Kicker assembly loose or to ofar away from side plat eKicker belt slipping

Ball exit assembly notcentered between side plates

Rudder jammedInterference caused by bounceplateBounce plate support bracke tloose or broke nMetal guide plate loose or ben tStart switch actuator retur nspring weak or broke nStart (S .S.) switch faulty . Notclosing when actuate dStart (S .S.) switch bracket ben tor broke nBind in shock absorbe r

Start switch actuator retur nspring weak or broke n

Start (S .S.) switch faulty, no topening after actuatio nSwitch (S .S .) brackets bent o rbroken keeping switch closedPin jam under cushio nactuating start (S.S.) switch

Shock absorber fault y

(S .S.) switch, cycle button ,10th frame switch butto nshorted or faultyBall lift clutch slipping clutc hwornSet screw loose on driv epulley

Adjust kicker rollers to 1/16 "from side platesVisual inspection for bind ,broken or loose tension springAdjust accordingl y

Adjust rudderCheck mounting bolts an drubber dampener for tightnes sRepair or replac e

Visual—Repair or replaceActuate switch by hand .Replace springContinuity check . Replac eswitch

Visual inspection . Straighten orreplace bracketManual inspection . Repair o rreplaceActuate switch by hand .Replace springContinuity check . Replac eswitc hVisual inspection . Straightenor replace bracket sVisual inspection . Release jam

Manual inspection . Repair o rreplaceManual inspection . Repair o rreplace

Visual inspection . Replac enecessary partsTighten set screw

7.8

Trouble

Ball lift fails to elevate bal l

Back-end motor overload ,trips to off position

CUSHION-PIT TROUBLE S

Cause

Ball lift clutch broke n

Ball lift belt tension low . Bel ttension spring retainer nut tooloose

V drive belt slipping o npulleysA) "V" belt stretched or wornB) Belt tightener spring broke nor stretche dJam in pin area causing moto rto overloadCarpet rollers out of positio n

Defective chassisDefective back-end motor

Test—Remedy

Visual inspection pulleyrotates, but ball lift belt doe snot . Replace clutch .

Check length of belt compres-sion spring (4603) . Proper bel ttension is maintained whe nspring length is 4" to 4 1/2" .Readjust when spring exceed s4 1/2 "Visual inspection . Replac ebelt .

Visual inspection . ReplacespringVisual inspection . RemovejamVisual Inspection . Replac erollersSubstitution . Replace chassi s

Substitution . Replace motor

7 . 9

CHASSIS TROUBLES—GENERA L

Trouble Cause Test—RemedyTable and sweep time delay Time delay circuit defective Replace P .C. boardtoo long or too shortMachine cannot be turned off Relay M contacts arced Repair, clean, or replace relay

together or faulty armatureMachine pit time delay too Replace P .C. boardlong or too shor tHalo light inoperative Light dirty . Loose or broken Wipe with damp cloth . Repair

plug. Reflector not in position or replaceMachine dead, (M) relay not Masking switch in off position Turn switch onenergized

One or more circuit breakers Turn breakers to on positio nin off positionCB-1 open Visual, replaceManagers control switch in off Visual, turn onposition

Power plug disconnected Insert plugNo power to machine Check master circuit breaker s

No cycle start Replace P .C. boardNo sweep run Replace P .C. boardNo table run Replace P .C. boardNo foul cycle Replace P .C. board

7 .10

NOTES

7 .1 1

TROUBLE SHOOTING PROCEDURE S

USE OF THE CONTINUITY TESTER (Open Circuits) . Item 64 in Tool Ki tNOTE : Do not use on live circuits . Disconnect all power on device to be tested .To check continuity of any wire, disconnect one end . Connect one side of tester to one end of the wiresuspected, and the other side of the tester to the end of the disconnected wire . If wire is good, tester shoul dlight . If wire is open, tester will not light .

USE OF CONTINUITY TESTER (Shorts )To check for a short between two wires, disconnect both ends of the wires suspected . Connect tester acrossthe two wires . If tester lights, wires are shorted . If tester does not light, wires are OK .

USE OF CONTINUITY TESTER (Grounds)To check for possible ground, disconnect both ends of the wire suspected . Connect one side of the teste rto the conduit or frame of machine and the other side of the tester to one end of the wire being tested . I fwire is grounded, tester should light . If wire is not grounded, tester will not light .

USE OF VOLTAGE TESTER Item 20 in Tool Ki tNOTE : For use on alternating or direct current . (AC or DC) 80 to 600 volts . All power to the machine or device

to be tested should be turned on . Caution should be used when testing live circuits .To check for voltage, connect tester in parallel or across line on device to be tested . Neon bulb will glo wif voltage is present . when checking across 220 volts, neon bulb will be twice as bright as when checkin g110 volts . Tester cannot be used on circuits below 80 volts .

INSTRUCTIONS FOR USING RELAY CONTACT BURNISHE R1. Insert the burnishing tool between the two contacts to be cleaned, keeping the tool parallel with th e

contacts .2. Slide the tool back and forth to obtain a smooth clean contact .3. If normally open contacts are to be cleaned, it will be necessary to apply a slight amount of pressure

to the armature to bring both contacts of the relay in contact with the burnishing tool .

NOTE: The burnishing tool will work best if kept free from dirt, grease or oil . It should not be touched wit hthe fingers . After using, it should be stored in its carrying case .

Normally Ope n(N .O.) Contact

Normally Closed(N .C.) Contact

Connect Continuit yTester Here Armature

Contact Burnisher

7 .12

TESTING MOTOR PLUG S

Sweep-Tabl eCable Plug B .E. Plug

Schematic Ref ."C.T. "

(Center Terminal)

Hot

VoltageReadin g

Schemati cRef. "Nil "

Voltage Test sWith Power O n

Betwee nX

and

Ni lX

and

ZX

and

Y (Sweep Reverse )1

and

2

TESTING MICRO SWITCHES USING CONTINUITY TESTE R

Normally Closed

N .C .

Commo n

Normally Open -CD N.O.

C

NOTE: To make this test on machine, remove wire connected to common terminal of switch .

1. Connect continuity tester across common (C) and normally closed (N .C.) contacts of switch . Tester shouldlight . Depress plunger on switch several times to check mechanical action . Tester light should go onand off .

2. Connect continuity tester across common (C) and normally open (N .O .) contacts of switch . Tester shouldnot light . Depress plunger on switch several times . Tester light should go on and off .

Continuity TestsWith Power Of f

Betwee nX

and

Z (300 ohms)Y

and

C .T .Z

and

Nil

7 .1 3

MOTOR CAPACITOR SOccasionally a capacitor will short out resulting in an inoperative motor . To test a capacitor, remove the con -nections from one terminal (see photo below) and take a resistance reading . Connect the meter and wai tapproximately one minute for the capacitor to charge up . A reading of 50,000 Ohms or more indicates agood capacitor, zero Ohms (short), no reading (open) .

7.14

NOTES