Check the Mechanical Cab Suspension

The spring elements of the cab are preset at the factory for an average load. If a failure occurs, the setting can be checked and if necessary altered.

Fault	Cause	Remedy
The cab amplifies its vibration.	Damper defective.	Have the dealer replace old parts with new ones (always do this on BOTH sides).
Suspension too soft (cab swings violently and strikes hard against the stop).	Pre-tension insufficient.	Correct the setting.
Suspension too hard.	Excessive pre-tension.	Correct the setting.

Required tools: Hook Wrench DIN1810–A 80–90.

Personal protection: Safety goggles and gloves.

Check and correct the setting.

1. 
   LX238079-UN-13MAR15

   
   LX238080-UN-20MAR15

   
   LX272578-UN-12FEB16

   A - Detents Settings with Marks I to IIIII

   B - Adjusting Ring with Arrow Marker

   C - Hook Wrench DIN1810–A 80–90

   a - Optimal Setting 340 mm (13.39 in.)

   Shut off the engine and engage park lock.

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2. CAUTION: Remove ignition key to prevent the engine from starting accidentally. Lower the implement to the ground. Do NOT reach into the spring.

   Put the desired weight in the cab (this should be approximately the weight of the operator).
3. Determine dimension (a). If the gap is approx. 340 mm (13.39 in.), no correction is required.
4. To make a correction, use hook wrench (C) to turn adjusting ring (B) to a detent setting where (a) is approx. 340 mm (13.39 in.).

   There are 5 detent settings which each represent a change of 3 mm (0.18 in.). Adjustment is as shown in the illustration. Do NOT move the adjusting ring from mark I to IIIII or from mark IIIII to I.

   IMPORTANT: Never move the adjusting ring directly from mark I to IIIII or from mark IIIII to I. This causes irreparable damage to the spring strut.

   Always set the same stage at both sides.

   NOTE: Factory setting = Stage I.