Husqvarna FS 520 Chainsaw User Manual


 
32
MAINTENANCE & LUBRICATION
Hydrostatic Transmission:
Service of Hydrostatic Transmission (TT): Mainte-
nance free for life of machine.
Transmission Drive Belts: Remove guards shown in
diagram as right to access transmission drive belts.
Transmission Drive Tensioner Belt (UU):
Belt Tension:
1. Check tension when machine is new.
2. Re-check tension after 1-2 hours of operation
and re-tighten to original tension if required - see
steps 3-5 below.
3. Lossen Bolts that hold Transmission Drive
Tensioner (V V) in place.
4. Move tensioner (V V) toward rear of machine
to increase tension.
5. Re-tighten bolts.
Belt and Sheave Wear:
Check every 50 hours for wear on belt and
sheaves. Replace if worn.
Hydrostatic Transmission Belt (WW):
Belt Tension:
Checking tension is not required. Hydrostatic
Transmission Belt Tensioner (ZZ) is a spring
loaded self tensioning idler. Check for wear or
damage to idler spring - replace if required.
Belt and Sheave Wear:
Check every 50 hours for wear on belt and
sheaves. Replace if worn.
Replace guards shown in diagram as right before start-
ing engine.