S0602170K
Page 8
Axle (ZF AP 420R)
LUBRICATION INSTRUCTIONS
Valid for ZF Axles with and without ZF-Locking differential.
The basis for a correct lubrication of all axles and their parts is a horizontal plane of installation in
every direction. (An inclined position of the differential carrier up to 5° is tolerable). In case of
variations, ZF must be asked for advice.
Place the vehicle in a horizontal position. All lubricating points must b cleaned carefully before
refilling.
Drain oil only immediately after a longer run.
Type of Lubrication
See “List of Lubricants TE-ML 05” on page 9.
Oil Level
Wheel end: Turn wheel hubs until the word "Oil level" can be read in a horizontal position. Fill up oil to
the overflow on the level plug.
Axle housing: Fill up oil, to the overflow on the level plug or the oil filler opening resp., installed in the
center.
Differential carrier, not installed in a ZF - Axle: Fill up oil 20 mm (0.7874 in) below the middle of the
crown wheel.
Oil Level Check
After a few minutes, if oil level has dropped fill up to the correct level until level remains constant. Oil
level check monthly. Especially before you start a vehicle with new or repaired axles or their
components resp.
Oil Change Intervals (Generally)
1st oil change after 500 operating hours. Further oil changes must be made every 1,000 operating
hours, or at least once a year.
Brake
For the pneumatic - hydraulic or memory controlled brake actuation are admitted.
Motor oils SAE 10W according to specifications MIL-L-2104 C, MIL-L-46152, API-CC, CD, SC, SD,
SE, SF.
ATF-Oils (Type A / Suffix A, Dexron IID).
NOTE:
Other brake fluids may be not used.
Point of Grease Lubrication
At greasing points, use a multipurpose grease with following properties: Lithium soap, drop point 170
C, NLGI Class 2.
The grease must be anti-corrosive, water-resistant and walk stable.
Re-grease all pressure grease fittings monthly.
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