PRONAR NV161/1, Operator'S Manual

Page: 95 / 132

SECTION 5 Pronar NV161/1
│
NV161/2
│
NV161/3
│
NV161/4
│
NV161/5
5.11
Wheels should be inspected with regard to distortion, breaking of material, breaking of welds,
corrosion, especially in the area of welds and contact with tyre.
Proper technical condition and appropriate maintenance of wheels significantly extend the life
of these components and ensure appropriate level of safety for manure spreader users.
Checking air pressure in tyres and visual inspection of steel wheels:
•
every 1 month of use,
•
if needed.
5.2.8 MECHANICAL BRAKES ADJUSTMENT
Considerable wear of brake shoe linings results in increased brake cylinder piston stroke and
worse braking efficiency.
TIP
Correct brake cylinder piston stroke should be within the range of 25 – 45 mm.
During braking, the brake cylinder piston stroke should be within the specified operating
range. Braking force decreases when the operating angle of the brake cylinder piston (5) in
relation to the expander arm (1) is wrong – figure (5.5). In order to obtain the optimum
mechanical operating angle, the cylinder piston fork (5) must be installed on the expander
arm (3) in such a manner as to ensure that the operating angle at full braking is about 90°-
figure (5.6).
ATTENTION
Incorrectly adjusted brake may cause rubbing of brake shoes against brake drums, which
may lead to faster wear of brake linings and/or brake overheating.
TABLE 5.1 Operating data of pneumatic cylinder
NOMINAL CYLINDER
STROKE
L [MM]
MINIMUM CYLINDER
STROKE
L
MIN
[MM]
MAXIMUM CYLINDER
STROKE
L
MAX
[MM]
75 25 45