3-28
SHB 28Z3 EN – Edition 2.0 * 28z3s312.fm
Maintenance
3.12 V-belt
Danger!
Only check or retighten/replace the V-belt when the engine is stopped
–
Danger of personal injury!
☞
Stop the engine before carrying out inspection work in the engine compart-
ment!
☞
Disconnect the battery
☞
Let the engine cool down
Caution!
Cracked and stretched V-belts cause engine damage
Check the V-belt once a day or every 10 service hours, and retighten if necessary.
Retighten new V-belts after about 15 minutes of running time.
Checking V-belt tension
☞
Stop the engine
☞
Fold the control lever base up
☞
Remove the ignition key and carry it with you
☞
Disconnect the battery or the battery master switch
☞
Let the engine cool down
☞
Open the engine cover
☞
Carefully check V-belt
1
for damage, cracks or cuts
➥
Replace the V-belt if it touches the base of the V-belt groove or if the pulleys are
damaged.
• If the V-belt is damaged:
☞
Press with your thumb about 100 N (22.5 lbs/ft) to check the deflection of the V-belt
between both pulleys.
The deflection of a new belt should be 6 to 8 mm (0.24 – 0.31”).
Otherwise, deflection should be 7 to 9 mm (0.27 to 0.35”) after about 5 minutes run-
ning time (see
Fig. 28
/2).
☞
Retighten the V-belt if necessary
☞
Close and lock the engine cover
Caution!
Overtightening the V-belt can damage the V-belt, the V-belt guide, the alter-
nator bearing and the water pump bearing.
Avoid contact of oil, grease or similar substances with the V-belt.
☞
Replace V-belts with damage, cracks, cuts etc.
☞
Avoid contact of oil, grease or similar substances with the V-belt
Fig. 28: Checking V-belt tension
1
About 8 mm
2
Содержание 28Z3
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Страница 10: ...I 8 SHB 28Z3 EN Edition 2 0 28Z3s20IVZ fm...
Страница 11: ...Operation...
Страница 27: ...Specifications...
Страница 46: ...2 20 SHB 28Z3 EN Edition 2 0 28z3s210 fm Specifications...
Страница 47: ...Maintenance...
Страница 113: ...Engine...
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