PRONAR GP200, Руководство оператора

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SECTION 5 PRONAR GP200
5.7
5.3 DRIVE SYSTEM MAINTENANCE
DANGER
Do NOT perform service or repair work under raised and unsupported machine.
Drive system maintenance involves periodic inspection, adjustment and possible
replacement of serpentine belts and inspection of the connections of the hydraulic motor's
hydraulic conduits.
ATTENTION
The serpentine belts should be inspected every 8 hours of the branch cutting saw
operation.
The inspection of the serpentine belts (6) (FIGURE 5.4) involves checking the technical
condition and tension of the belts. To gain access to the serpentine belts, dismount two top
covers (2) and (3) of the saw drive system.
5.3.1 CHECKING THE SERPENTINE BELTS TENSION
Before checking the serpentine belts tension, check tightening of the bolts (10) that fix the
bracket of the pulley (A) of the hydraulic motor (1) (FIGURE 5.4).
The belts tension can be changed using the pulley tensioners (8). Start the inspection of the
belts tension by adjusting the pulley (B) belt. To do this, loosen the securing nut (9) and the
bolts (7) that fix the bracket of the pulley (B) tensioner. Pre-tighten the belt using the
tensioner (8) so that the belt is rigid and then, draw two marks on the belt. The distance
between the marks should be 400 mm. Tighten the belt again using the tensioner nut (8) until
the distance between the marks is 402.5 mm. Secure the tensioner using the securing nut (9)
and tighten the bolts (7) that fix the tensioner bracket. Adjust the (C) pulley and the (D) pulley
in the same way. When tightening the belt, turn the pulley by at least 360°.
ATTENTION
Wrong tension of the belts may result in accelerated wear of the drive system
components (belts, bearings) and damage to the machine.