Presto Lifts Power Stak PPS3000-125FS, Installation, Operation And Service Manual

PRESTO OWNER’S MANUAL 

Page 9 

POWER STAK PPS3000-125FS 

S E C T I O N  5

BATTERY MAINTENANCE

A.  PREPARING TO CHARGE A BATTERY

1. Always turn off E-stop and key switch before working

with the batteries.

2. Be sure the area around the stacker and the battery is

well ventilated while battery is being charged. 

3. The battery terminals, connections and wiring connec-

tions should be clean and free of corrosion. When clean-

ing any of these components wear a face shield or other

suitable protective eyewear.

B.  BATTERY CHARGING

Charging must be performed with the charger that is provided 

with or prewired into the machine.  During charging, the 

temperature in the battery must not exceed 120 F.  Charging 

simultaneously with truck operation is not recommended.  

Plug the charger into a 115 volt outlet.  Charge until the bat-

tery gauge indicator lights show fully charged (approximately 

6-8 hours).

C.  WARNINGS AND BATTERY INFORMATION

Avoid use of open flame near batteries.  At temperatures 

around freezing point, battery capacity is reduced by 30%.  

The battery terminals, connections and wiring should be 

clean and free of corrosion.  When cleaning any of these 

components, wear a face shield or other suitable protective 

eyewear.  Read, understand, and follow all battery and battery 

manufacturer’s specific precautions 

while working with and/

or charging batteries.

D.  BATTERY MAINTENANCE

To measure the voltage, use a digital voltmeter (DC) on the 

battery poles.  The truck must not have been in use for the 

previous 30 minutes.

DANGER

Never alter the AC cord or plug provided. If it will not 

fit outlet, have proper outlet installed by a qualified elec

-

trician. Improper connection can result in a risk of an 

electric shock.

1. Disconnect the charger from the 115 volt wall outlet

once the indicators read fully charged.

Note:  The batteries are designed for intermittent use.  

Continual usage will wear the battery out and charging 

will be required.

E.  CHARGER OPERATION

Power Lamp
1. Green:  Connection correct.   Charger will operate nor-

mally.
2. Red:  Bad connection or bad battery.

Fault

1. Red light blinks 3 times in 5 seconds:  The output between

charger is faulty, loose, or bad connection
2. Red light blinks 5 times in 5 seconds:  The temperature

is too hot for the charger to operate.

3. Building power is not compatible; too low or too high.

+- 10% is the general rule.

Charge Lamp
1. Red:  Charger can charge normally.  The battery is less

than 70%

2. Orange:  Battery is between 70% and 100% charged.
3. Green:  Battery is at 100%.  Fully charged.
4. No light:  The charger can not charge the battery.  Voltage

of the battery may be too low to cause the charger to start.  It 

must be at 10.5 volts to initiate charge.

S E C T I O N  6

MAINTENANCE

Operation of Presto Power Stak is very simple — as is their 

construction.  They require very little maintenance.  Reason-

able care will result in excellent trouble-free performance. 

The Power Stak is designed for one-man operation and ease 

of performance.

•

Grease floor wheels and casters at least once a month.

•

Use only Hydraulic Oil AW32 or Dextron III in the

hydraulic system.

•

Do not 

overload your lift.

•

Check brakes, steering mechanisms and controls be-

fore each use.

VOLTAGE

Approx. 12.7 V .....  Fully charged
Approx. 12.2 V ........  1/2 charged
Approx. 12.0 V ........  1/4 charged
Approx. 11.6 V ........   Discharged