PRONAR NV161/1, Operator'S Manual

Page: 97 / 132

SECTION 5 Pronar NV161/1
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NV161/2
│
NV161/3
│
NV161/4
│
NV161/5
5.13
The inspection of the brake operation involves measuring the extension length of each brake
cylinder piston while braking at parking. If the brake cylinder piston stroke exceeds the
maximum value (45 mm), the braking system should be adjusted.
Required maintenance activities:
Hitch the manure spreader to tractor.
Turn off tractor engine and remove key from ignition.
Immobilise tractor with parking brake.
Make sure that the manure spreader's brakes are not engaged.
Secure the manure spreader with wheel chocks.
Make a line (A) on the brake cylinder piston (1) to indicate the position of the
maximum withdrawal of the brake cylinder piston when the manure spreader's
brakes are released – figure (5.6).
Press the tractor brake pedal and mark the position of the maximum extension
of the brake cylinder piston with a line (B).
Measure the distance between lines (A) and (B). If the brake cylinder piston
stroke is outside the proper operating range, adjust the expander arm.
Dismantle brake cylinder fork pin.
Remember or mark the original position of pin (6) of brake cylinder fork (5) in
expander arm opening (3) – figure (5.6).
Check if the brake cylinder piston moves freely and within the whole nominal
range.