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The flywheel surface for excessive scoring and the spigot bush or bearing for wear
The gearbox snout (carrier support) for excessive wear
The engine and gearbox for oil leaks
The release fork for distortion, cracking and worn pivot points and thrust pin surfaces
The clutch cable for fraying and corrosion causing stiffness in operation
The pedal box for wear, seizure and secure attachment
The self-adjusting mechanism for wear and proper function
The hydraulic system for leaks and correct operation, pressurise if required
The engine and gearbox mountings for condition and breakage
The transmission, final drive unit, drive couplings and drive shafts must be free from accumulative and excessive backlash and wear
Diesel engines must run free or excessive cyclic impulses
Repair or replace any items found unserviceable
Always clean the bell-housing and all parts thoroughly
The flywheel face must be especially clean
The input shaft splines should be wire brushed clean
The driven plate on the input shaft to ensure it slides freely and spin it to check for run-out before fitting
Lubricate the driven plate hub spline and release bearing carrier sparingly
Ensure the driven plate is fitted the correct way round and is centralised with an alignment tool during fitting
Avoid contaminating the friction linings with lubricants
Tighten each diagonally opposite clutch mounting bolt progressively to prevent distortion - DO NOT USE AIR TOOLS
Maintain alignment of the transmission and do not use excessive force during engagement of the input shaft splines
Set release system clearances
Reset and engage self-adjusters and check for correct release bearing pre-load according to manufacturer's specification
During first miles of use the clutch should not be treated harshly - it is also recommended that the release system and any adjustment is re-checked after 250 miles of use
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