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charged. Unplug the adapter from the Dynamo Pro 17, and 
the “READY TO USE” LED should shine again once the power 
switch is in the “ON” position.

3. using the Dynamo Pro 17 

to start a Vehicle

The Dynamo Pro 17 can be used to help start a vehicle that 
has a drained battery. It may not have sufficient power to 
charge a severely drained, or extremely large (greater than 
4000cc engine), car battery. 

to use the Dynamo Pro 17 to help start a vehicle:

  1) Put the power switch in the “ON” position.
  2) Connect the red clip (+) on the Dynamo Pro 17 to the  
    positive pole (+) on the car battery
  3) Connect the black clip (-) on the Dynamo Pro 17 to the  
    negative pole (+) on the car battery
  4) Wait a few seconds, then attempt to start the car.
  5) Remove the Dynamo Pro 17 clips from the car battery.

4. storage and Maintenance 

To optimize the lifetime of the Dynamo Pro 17, several steps 
should be taken for its proper storage and maintenance. Make 
certain the Dynamo Pro 17 power switch is in the “OFF” posi-
tion before putting it in storage. Keep the Dynamo Pro 17 stored 
a dry, cool area when not in use. Fully charge the Dynamo Pro 
17 before putting it into storage. If you are going to store the 
Dynamo Pro 17 for long periods of time, you should occasion-
ally recharge it (about every three months).  Failure to do so 
will void your warranty.

resetting the circuit Breaker

If the power indicator LED light does not come on when you 
turn the power switch, the circuit breaker (Figure 1) will need 
to be reset. Turn the power switch to the “OFF” position and 
press the circuit breaker button to reset it.  Keep in mind that 
if you are drawing more than 10 Amps through the 12V/10A 
adapters you will always cause the circuit breaker to break.

replacing the 2 amp Fuse

If the fuse for the 3V/6V/9V power jacks should blow, it can be 
replaced with a new 2 Amp (5mm x 20mm long, 250 VAC, fast 
acting) fuse. Turn the power switch to the “OFF” position, then 
turn the fuse securing knob (Figure 1) in the indicated direc-
tion to free the old fuse. Replace it with the new fuse. Replace 
the fuse securing knob.

replacing the Flashlight Bulb

Should the flashlight bulb break or burn out, it can be replaced 
with a 12V, 0.5A Krypton bulb, available at most hardware 
stores. Make certain the power switch is in the “OFF” position 
before replacing the bulb.

To replace the bulb, unthread the flashlight head by turning it 
counterclockwise. Replace the old bulb with the new bulb and 
thread the flashlight head back onto the flashlight.

replacing the spotlight Bulb

Should the spotlight bulb break or burn out, it can be replaced 
with an H3 12V 55W halogen bulb, available at most hardware 
stores. Make certain the power switch is in the “OFF” position 
before replacing the bulb. 
To replace the bulb, unthread the spotlight head by turning it 
counterclockwise. Make certain the old bulb and the reflector 
have had plenty of time to cool down before you touch either 
one. Separate the reflector from the bulb by removing the clip 
shown in Figure 2. The entire bulb assembly, including its cord 
(color white), is removed by detaching the end of the cord 
from the connecting clip within the spotlight housing. Replace 
the bulb assembly, and reassemble the spotlight.

5. specifications

Primary DC output:  Two 12V cigarette-lighter type sockets, 
maximum 10 Amp total, tip positive
Primary DC output regulation: 10 Amp circuit breaker
Secondary DC output: 3V, 6V, and 9V output jacks, maximum 
1 Amp output, tip positive
Secondary DC output regulation: 2 Amp fuse. (5mmx20mm 
long, 250 VAC, fast acting)
Internal battery: 12V/17Ah rechargeable sealed lead-acid bat-
tery
Recharging current requirements: 120v, 60Hz AC or 14.5 to 
15.5V DC
Flashlight: 12V 0.5 A Krypton bulb, with red lens
Spotlight: H3 12V 55W Halogen bulb, 800,000 candlepower, 
angle adjustable
Car battery clips: Can provide up to 250 Amps for 5 sec, will 
jump start most cars with engine size less than 4000cc
Operating temperature: 32° F to 86°
Weight: 19 lbs 12 oz
Dimensions: 13.25" x 14.25" x 5.0"

Figure 2. 

Remove the clip to separate the bulb assembly from the 

reflector.

Clip

Bulb Cord

Summary of Contents for Dynamo Pro 17

Page 1: ...se 12V DC output jacks Indicator lights Figure 1 The Dynamo Pro 17 Rechargeable 12V DC Mobile Power Station Congratulations on your purchase of an Orion Dynamo Pro 17 The generous 17 amp hour bat tery size provides power for more than twice as long as standard 7 amp hour batteries before recharging is needed In addition to powering your astronomical instruments the Dynamo Pro 17 also serves as a p...

Page 2: ... Operating the Spotlight The spotlight is an 800 000 candlepower halogen light Although it has many useful applications the use of such a powerful light at astronomical gatherings is not advised To operate the spotlight the Dynamo Pro 17 power switch must be in the ON position Flip the spotlight switch Figure 1 to the ON position The spotlight can be rotated about its hinge Figure 1 for easy posit...

Page 3: ...g knob Figure 1 in the indicated direc tion to free the old fuse Replace it with the new fuse Replace the fuse securing knob Replacing the Flashlight Bulb Should the flashlight bulb break or burn out it can be replaced with a 12V 0 5A Krypton bulb available at most hardware stores Make certain the power switch is in the OFF position before replacing the bulb To replace the bulb unthread the flashl...

Page 4: ...urned postage paid to Orion Warranty Repair 89 Hangar Way Watsonville CA 95076 If the product is not registered proof of purchase such as a copy of the original invoice is required This warranty does not apply if in Orion s judgment the instrument has been abused mishandled or modified nor does it apply to normal wear and tear This warranty gives you specific legal rights and you may also have oth...

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