Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Test Requirements:


Test requirements:
^ Check suspension, wheel bearing, steering and steering linkage for excessive play and damage.
^ Tire tread depth difference no more than 2 mm (0.079) on an axle.
^ Tires inflated to correct pressure
^ Vehicle aligned, suspension bounced and rocked several times
^ Vehicle unladen (curb weight)

Fuel tank must be full

Spare wheel and vehicle tools are stowed at correct installing locations

The fluid reservoir for the windshield/headlight washer system must be full.

^ Make sure that the sliding plates and turntables (alignment equip.) are not touching an end stop when checking the wheel alignment.
^ Do not check vehicle alignment before vehicle has completed 1000 to 2000 km (600 to 1200 miles), to allow coils springs to settle.

Please note!

^ The test equipment must be properly adjusted and attached to the vehicle; observe device manufacturer's operating instructions.

Adhere to manufacturer of your vehicle alignment equipment for training as required.

Vehicle alignment platforms and vehicle alignment units/vehicle alignment computers can lose their calibration over a period of time.

Vehicle alignment platforms and vehicle alignment units/vehicle alignment computers should be checked and if necessary adjusted within the framework of an inspection/maintenance at least once a year!

- Treat these highly sensitive units carefully and conscientiously!