I have only had my cordless trimmer for two (2) months and it won't work anymore, or it only works for a few minutes before it stops, is there a problem with my unit?
On any cordless rechargeable product, you must use the unit frequently to keep it operating properly. As stated in the instruction booklet, you should run the trimmer's battery completely dead at least once a month, otherwise, if you only use the unit two (2) minutes every day eventually it will work for only two minutes between charges. Thus, to prolong the life of your unit, you should completely discharge the battery at least once a month by leaving the unit out of the stand between uses and running it until it stops.

Can I leave my trimmer in the charger stand all the time, or will it overcharge?
You can leave the unit in the charge stand at all times, it will not overcharge or harm the unit in any way. The only way in which the unit can be harmed is if it is only used in short intervals and if the unit's battery is not run completely dead at least once a month.

What is the best way to run a unit's battery dead?
Simply turn the unit "ON" and either lay it down or set it in the charging stand when the stand is unplugged. IMPORTANT: Do not leave the unit in the "On" position after the unit has run dead. Once the battery is dead, immediately turn the switch to "OFF" and plug in the stand to recharge completely.

What happens if I already have a unit that is not holding a charge because I never ran the battery completely dead?
It is sometimes possible to rejuvenate the battery by completely running the unit dead and turning it OFF and recharging it. Perform this Procedure three to four days in a row and it is sometimes possible to rejuvenate the battery to original strength.

How do I change the nickel-cadmium batteries on my 8900 Cordless Trimmer (only valid on units purchased after January 1, 1996) ?
Depending on use, your battery should last 3 to 5 years (See instruction booklet for "Extended Battery Life") before replacement is necessary.

When replacement is necessary follow these steps:
1) Remove three screws holding case together on bottom (NOT blade screws).
2) Slide connector off front (See A) and back (See B) battery tabs (as shown with arrow). It maybe helpful to use a flat blade screwdriver to assist in sliding connectors off battery tabs.
3) Remove old battery from case and replace. (Wahl Battery Part #0745-200).
4) Slide connectors (See A & B) over tab on new battery and position on trimmer (As shown with arrows)
5) Assemble top case screws and tighten 3 case screws.
6) Charge new battery for at least five hours.
The battery is consumer replaceable. Please contact Wahl (click here for address) to place an order for a new battery.

How do I align my blades?
On the Wahl Clipper

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The above sketch shows how the bottom blade holes are larger than the shanks of the blade screws. When the blade screws are loosened the bottom blade can be aligned with the top blade. Tighten the screws after the blade is aligned and ensure that they are kept tight.

On Clippers Using "Adjusto-Lock Blades"

To remove the blades loosen only the center screw. Leave the two outside screws tight as they hold the bushings in place to keep the alignment of the blades. Keep screws tight when in operation.

ALIGNING BLADES

1)The end of the top blade teeth should be aligned 1/32" to 1/16" (.79mm to 1.59mm) back from and parallel to the bottom blade. It is important to align your blade properly to ensure that the clipper does not cut too close and to prevent the moving cutter from touching the skin.
2)The extreme left hand tooth of the top blade must be covering or be to the left of the first small tooth of the bottom blade.
3)The extreme right hand tooth of the top blade must be touching the big tooth on the bottom blade.

My clipper/trimmer is making a loud "clunking" sound, is it broken?
No, the unit is not broken. Rather, it is not properly tuned and as such it is not operating at maximum power. To adjust power (tune), turn the power screw in a clockwise direction until you hear a noise. Then, slowly turn power screw out (counterclockwise) until the noise stops. This is maximum power.

How often should I oil my clipper?
OILING CAUTION - In order to ensure that you get the most life and performance out of your clipper or trimmer, we recommend that you oil your unit daily. To oil it properly, the unit should be held in such a way that the blades are in a downward position as shown. With the clipper or trimmer blade running, dispense 2-3 drops of oil across the top blade. (Use Wahl Clipper Oil ONLY! Other oils will gum up the blades.)

Wipe off the excess oil so it does not run into the motor compartment. Oil in the motor compartment will eventually lead to a poor motor performance. Blades should be oiled after using disinfectant or sanitizing solution.

To increase the life span of your clippers and parts monthly maintenance is suggested. Follow these simple instructions:
1. Remove the name plate and the lever, link, gear and the small washer that fits just under the gear. Clean all parts, regrease and replace inside your clipper. Keeping the moving parts well greased is very important in order for your clippers to run smoothly and cut at their capacity.
2. Remove the end cap at the bottom of your clipper and remove all hair to allow your clipper to breathe freely. If not cleaned this can cause your clipper to run hot.
3. Keep all hair cleaned from the top end of your clipper around the hinge area. This will keep your blades fitting properly for a better cut.

Maintenance and Care For Your Blades
1. It's not recommended to soak your blades in a blade wash for an extended period of time. To prevent rusting, keep your blades cleaned and well oiled.
2. While there's numerous ways to keep your blades cleaned this is the suggested way: While your blade is running on your clipper, spray liberally with WD-40 in between the cutter and the comb blade until all of the hair has been removed. Use the wand that comes with your can of WD-40 as this gives more force for easier hair removal. Wipe the excess oil from your blade.
3. A blade that's making an unusually loud noise and that seems to be vibrating on your clipper in a rocking motion can easily be restored to normal. Take the blade off your clipper and lay it face down so that you can see the back. Check the socket on the blade. These "ears" can be adjusted if they appear to be spread apart. Using a small pair of vise grips (the 4" ones work the best) pull one "ear" at a time, to the inside of the blade in order to bend them in a small amount. Take good care while doing this as the "ears" can break. After adjusting, if you find the blade is hard to put on your clipper, you've adjusted them a little too much. If that's the case, you'll need to lift the latch on your clipper and force the blade on. This will give the socket the right amount of adjustment. Now, your blade should be secure and the noise subsided.

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