Yanmar 6LPA-STP2 Service Manual page 29

Front Power Take-Off (PTO) Output
12/05
Method for Front PTO
1. Use type "A" (Belt drive with no outside
bearing). NEVER use other types of PTO.
2. NEVER engage the UP-pull drive. Use the side
pull belt drive.
3. Use a single V-drive, type "A."
4. The PTO pulley should be aluminum. The
outside diameter should be maximum 170 mm
(6.69 in.) and the overhang within
25 mm (0.98 in.).
5. Install the pulley to the exterior of the viscous
damper and tighten the pulley and damper with
the damper fixing bolts (M8 x (6 Qty.)) and the
washers. (Torque: 3.8 ± 0.2 kg·m,
37.27 ± 1.96 N·m (27.4 ± 1.4 lb-ft))
Note: The crankshaft may break if the front
PTO output exceeds the allowable
output.
Figure 3-14V-Pulley Overhang
(1)
(4)
Figure 3-14
1 – Pulley Thickness Should be
10 mm (0.393 in.)
2 – Viscous Damper
3 – Crankshaft
4 – PTO Pulley (Aluminum)
6LPA Service Manual
GENERAL SERVICE INFORMATION
• "A"-Type V Belt Style: A Material: Aluminum
equivalent inertia weight 0.065 kg·cm sec
(0.63 N·cm sec
(2)
(3)
0005552
© 2007 Yanmar Marine International
Figure 3-15V-Pulley Drawing
Figure 3-15
2
)
0005553
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