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You are here: Home > Battery Charger Parts > Schumacher Battery Charger Repair Parts > PSW-7700 Schumacher Battery Charger Parts List

PSW-7700 Schumacher Battery Charger Parts List



Schumacher PSW-7700 Repair Parts
Part No.
Description
Qty
0090026121
115 Volt Power Cord
1
0099000045
Knob for Selector Switches on SE Series Chargers
1
0099000062
Fan Blade
1
0099000063
Fan Motor Open Frame 115 Volt
1
0099000096
Knob for Timer Switches on SE Series Chargers
1
0099000208
Axle 14.5" x 3/8" Diameter with Swage
1
0099000225
8" Plastic Foot (New Style Units)
1
0499000110
Rotary Switch 6 Position
1
2199700006
Axle End Cap 0.375" Diameter Axle (Pair)
1
2299001548
Mechanical 120 Minute Timer Kit With Knob (ZA101)
1
2299001576
Heatsink Rectifier Assembly
1
3899001556
Negative Output Cable and Clamp 1
3899001558
Positive Output Cable and Clamp
1
3999000111
Circuit Breaker DC 120 Amp 32 Volt
1
5399100118
Ammeter 0-100 Amp Range with Charge & Start
1
5399200015
Volt Meter 8-16 Volt Range Percent Charged Low Med Hi Scale
1
8019K96
Single Male to Double Male Splitter Piggyback Spade Terminal (Pair)
1


Schumacher PSW-7700 Troubleshooting Guide
PROBLEM POSSIBLE CAUSE SOLUTION
No reading on the ammeter. Charger is not plugged in. Plug the charger into an AC outlet.
No power at the receptacle. Check for open fuse or circuit breaker supplying AC outlet.
Clips are not making a good connection to the battery. Check for poor connection to battery and frame. Make sure connection points are clean. Rock clips back and forth for a better connection.
Connections are reversed. Unplug the charger and reverse the clips.
Battery is defective (will not accept a charge). Have battery checked..
Ammeter reading stays high. Battery is severely discharged. Continue charging battery for two more hours. If problem continues have the battery checked.
The settings may be wrong for the battery voltage needed. Check the charger settings and battery voltage.
The charger is making an audible clicking sound. Circuit breaker is cycling. The settings may be wrong. Check the charger settings.
Battery is defective. Have the battery checked.
Shorted battery cables or clips. Circuit breaker cycles when current draw is too high. Check for shorted cables or clips and replace if necessary.
Severely discharged battery, but otherwise it is a good battery. The battery may not want to accept a charge due to a run-down state. Allow charging to continue until battery has a chance to recover sufficiently to take a charge. If more than 20 minutes, stop charging and have the battery checked.
Reverse connections at battery. Shut the charger off and correct the lead connections.
Charger makes a loud buzz or hum. Transformer laminations vibrate (buzz). No problem, this is a normal condition.
Shorted Diode Assembly or Output Rectifier Assembly (hum). Have charger checked by a qualified technician.
Short or no start cycle when cranking engine. Drawing more than 300 amps (12V). Crank time varies with the amount of current drawn. If cranking draws more than 300 amps, crank time may be less than 3 seconds.
Failure to wait 5 minutes (300 seconds) between cranks. Wait 5 minutes of rest time before the next crank.
Clips are not making a good connection. Check for poor connection at battery and frame.
AC cord and/or extension cord is loose. Check power cord and extension cord for loose fitting plug.
No power at receptacle. Check for open fuse or circuit breaker supplying AC outlet.
The charger may be overheated. The thermal protector may have tripped and needs a little longer to reset. Make sure the charger vents are not blocked. Wait and try again.
Battery may be severely discharged. On a severely discharged battery, charge for 10 to 15 minutes in the manual rate to help assist in cranking.
The battery is connected and the charger is on, but is not charging. Clips are not making a good connection. Check for poor connection at battery and frame. Make sure connecting points are clean. Rock clips back and forth for a better connection.
Schumacher User Manual Link


When a charging problem arises, make certain that the battery is capable of accepting a normal charge. Double check all connections, AC outlet for a full 120-volts, charger clips for correct polarity and the quality of the connections from the cables to the clips and from the clips to the battery system. The clips must be clean.

When a battery is very cold, partially charged or sulfated, it will not draw the full rated amperes from the charger. It is both dangerous and damaging to a battery to force higher amperage into it than it can effectively use in recharging.

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0090026121 Schumacher 115 Volt Power Cord
0090026121 Schumacher 115 Volt Power Cord
Discontinued

0090026121 Schumacher Power Cord. SJTOWA, 14 Gauge 3 conductor 9' long .25" X .25 X RIN Termination more info
0099000045 Schumacher Knob For Selector Switches on SE Series Chargers
0099000045 Schumacher Knob For Selector Switches on SE Series Chargers
Discontinued See 6094K89

This Knob is for selector switches on SE Series chargers only, there are separate knobs for selector switches and timers. Please check your part numbers carefully. more info
0099000062 Schumacher 6" CW Fan Blade
0099000062 Schumacher 6" CW Fan Blade
Discontinued See 316-009-000

0099000062 Schumacher 6" CW Fan Blade. more info
0099000063 Schumacher Fan Motor Open Frame 115 Volt
0099000063 Schumacher Fan Motor Open Frame 115 Volt
Discontinued See 216-041-666

Fan Motor Open Frame 115 Volt more info
0099000096 Knob For Timer Switches 1/4" OD 3/4 "D" Shaft
0099000096 Knob For Timer Switches 1/4" OD 3/4 "D" Shaft
Discontinued See 6094K89

0099000096 Knob For Timer Switches 1/4" OD 3/4 "D" Shaft, there are separate knobs for selector switches and timers. Please check your part numbers carefully. more info
0099000208 Axle 3/8" X 14.5" With Swage
0099000208 Axle 3/8" X 14.5" With Swage
Discontinued

0099000208 Axle 3/8" X 14.5" With Swage more info
0099000225 Foot Plastic 8" (New Style)
0099000225 Schumacher Foot Plastic 8" (New Style)
Price $5.60

8" Front foot for new style battery chargers more info
0099000269 Schumacher Knob For Timer Switches on PS Series Chargers
0099000269 Schumacher Knob For Timer Switches on PS Series Chargers
Price $4.62

This Knob is for timers on PS Series chargers only with a 1/2 Shaft, there are separate knobs for selector switches with a 3/4 shaft. Please check your part numbers carefully. more info
0099000270 Schumacher Knob For Selector Switches on PS Series Chargers
0099000270 Knob For Selector Switches on PS Series Chargers
Discontinued

This Knob is for selector switches with a 3/4 Shaft only, there are separate knobs for timers with a half shaft. Please check your part numbers carefully. more info
0499000110 Rotary Switch 6 Position
0499000110 Schumacher Rotary Switch 6 Position
Discontinued

0499000110 Rotary Switch 6 Position more info
2199700006 Axle End Cap .375 Dia Axle (Pair)
2199700006 Schumacher Axle End Cap .375 Dia Axle (Pair)
Price $4.50

Axle End Cap Fits .375 (3/8") Diameter Axle, Sold as a Pair, Can be used on any 3/8" Axle to secure wheels. more info
2299001548 Mechanical Timer Kit With Knob (ZA101)
2299001548 Schumacher Mechanical 120 Minute Timer Kit With Knob (ZA101)
Discontinued See TJ1-120MHB

120 Minute mechanical timer with knob. 120 minute total time. Mechanically controls charging in timed Mode with manual hold mode. Single Pole Single Throw (SPST) Switch rated 15 amperes, finish bell. more info
2299001576 Schumacher Heatsink Rectifier Assembly
2299001576 Schumacher Heatsink Rectifier Assembly
Discontinued

Heatsink Rectifier Assembly, requires no soldering to install. Used on newer style units. Heavy Duty design for more reliability. 1/4" spade terminal leads make installation a snap. This unit does not include insulators, bolts, nuts or any other hardware. more info
316-009-000 Fan Blade 6" 4 Blade CW
316-009-000 Fan Blade 6" 4 Blade CW
Price $12.85

Fan Blade 6" 4 Blade CW. Same as 130007-001 Christie more info
3899001556 Schumacher Negative 4 Gauge Output Cable and Clamp
3899001556 Schumacher Negative 4 Gauge Output Cable and Clamp
Discontinued

3899001556 Schumacher Negative 4 Gauge Output Cable and Clamp more info
3899001558 Schumacher Positive 4 Gauge Output Cable and Clamp
3899001558 Schumacher Positive 4 Gauge Output Cable and Clamp
Price $17.39

3899001558 Schumacher Positive 4 Gauge Output Cable and Clamp more info
3999000111 Circuit Breaker DC 120 Amp 32 Volt
3999000111 Circuit Breaker DC 120 Amp 32 Volt
Discontinued

Circuit Breaker 32 Volt DC 120 Amp, Automatic Reset with Screw Terminal Tab Connectors, No Hardware Included. When ordering, it may be necessary to purchase a pair of the 5199000406 screws if replacing and older circuit breaker for retrofit. more info
51-257 Goodall Ammeter Horizontal 0-60 Amp Range With Start (100 Amp)
51-257 Goodall Ammeter Horizontal 0-60 Amp Range With Start (100 Amp)
Price $24.95

51-257 Goodall Ammeter Horizontal 0-60 Amp Range With Start (100 Amp) more info
51-288 115 Volt Fan Motor With Fan Blade & Mount
51-288 115 Volt Fan Motor With Fan Blade & Mount
Price $40.50

51-288 115 Volt Fan Motor With Fan Blade & Mount. .195 diameter shaft. Your unit may not require the mount, in which case discard it. more info
5100000005 Timer Screw M3 X 5.5
5100000005 Timer Screw M3 X 5.5
Price $0.05

5100000005 Screw M3 X 5.5 For Original Timer more info
5399100118 Ammeter, 0-100 Amp Range with Charge & Start
5399100118 Schumacher Ammeter 0-100 Amp Range with Charge & Start
Price $24.65

5399100118 Ammeter, 0-100 Amp Range with Charge & Start more info
5399100145 Schumacher Ammeter Horizontal 0-80 Amp
5399100145 Schumacher Ammeter Horizontal 0-80 Amp
Price $24.65

5399100145 Schumacher Ammeter 80 Amp With Start (100 Amp) Horizontal Mount. Wire through Induction pickup. more info
5399200015 Schumacher Volt Test Meter 8-16 Volt Range Percent Charged Low Med Hi Scale
5399200015 Schumacher Volt Test Meter 8-16 Volt Range Percent Charged Low Med Hi Scale
Price $32.50

5399200015 Schumacher Volt Test Meter 8-16 Volt Range Percent Charged Low Med Hi Scale more info
6094K89 Knob For Schumacher Battery Charger Selector Switches & Timers
6094K89 Knob For Battery Charger Selector Switches & Timers
Price $4.65

6094K89 Knob For Battery Charger Selector Switches & Timers. This Knob is for selector switches and timers, designed with 1/4" ID and a set screw for locking onto shaft. Suitable for all 1/4" shaft switches. Replaces Schumacher 0099000045 & 0099000096. more info
TJ1-120MHB Universal Battery Charger 2 Hour Mechanical Timer
TJ1-120MHB Universal Battery Charger 2 Hour Mechanical Timer
Price $38.95

TJ1-120MB Universal Mechanical 2 Hour Timer With Finish Bell. Mechanically controls charging in timed Mode, has "Hold" for manual un-timed charging. Single Pole Single Throw (SPST) Switch rated 15 amperes. Termination is designed to accept 1/4" Quick Disconnect terminals. Includes mounting screws. Replaces many older mechanical timers. more info
   
 
*Variations of models due to production changes and parts availability are not our responsibility
*No refunds on electrical components
*Service should be performed only by a qualified technician
*Please read all supporting documentation and safety instructions
Century Tool & Equipment
4013 S. Old Hwy 94
St. Peters MO 63304
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