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For both non-adjustable - and adjustable towbar, the
towbar should be as level as possible and the
compressor and towing eye end in a level position.
Push the hand brake lever (1) completely downwards
and connect breakaway cable (2) to the vehicle.
Secure jockey wheel (3) or support leg in the highest
possible position (see figure). The jockey wheel is
prevented from turning.
HEIGHT ADJUSTMENT
(with adjustable towbar)
• Remove spring pin (1).
• Release locking nut (2) with support tools 
(Extension tube 3).
• Adjust required height of the towbar.
• Tighten locking nut (2) by hand first.
• Secondly tighten locking nut (2) with a tightening 
torque corresponding to table. With an extension 
tube (3) (”A” corresponding to table) and 
handforce (”B” corresponding to table) easy 
tightening is possible.
• Fix locking nut (2) with spring pin (1).
• Height adjustment should be undertaken on 
levelled ground and in coupled condition.
• When readjusting, make sure that the front point 
of the towbar is horizontal with the coupling 
point.
• Before starting a trip, ensure that the adjustment 
shaft is secure, so that stability and safety is 
guaranteed while driving. If necessary, tighten the 
locking nut (2) corresponding with table.
Before towing the compressor, ensure
that the towing equipment of the vehicle
matches the towing eye or ball connector
and ensure that the service doors are
closed and locked properly.
Before towing the compressor, make
sure that the joints of the towbar are
secured with maximum strength without
damaging the towbar. Be sure that there
is no clearance between the teeth of the
joints.
For specific instruction see below!
Type M [Nm/lbf.ft.] ”A” [mm/in] ”B” [N/lbf]
ZV 2000 250 - 300 / 184.5 - 221.4 600 / 23.4 420 - 500 / 94.5 - 112.5
ZV 2500 350 - 400 / 258.3 - 295.2 600 / 23.4 580 - 660 / 130.5 - 148.5
Attention:
DD6.book  Page 29  Monday, November 10, 2014  11:25 AM