
MAINTENANCE
SECTION 5
CMD-4081850 / 90-860094030 SEPTEMBER 2003 Page 111
7. Install and torque the propeller nut. Check propeller at least every 20 hours of operation
and retorque as needed.
Description
Nm lb-in. lb-ft
Aft Propeller Nut
1
81 60
1
The propeller torque stated is the minimum torque value.
8. Install the propeller shaft anode over the propeller shaft nut.
9. Place the flat washer onto the propeller shaft anode screw.
10. Place the star washer onto the propeller shaft anode screw.
NOTE: If the propeller shaft anode is removed after initial installation and is to be reinstalled,
it will be necessary to apply Loctite Thread Locker 271 to the threads of the propeller shaft
anode screw.
11. Secure the propeller shaft anode to the propeller shaft using the propeller shaft anode
screw and washers. Torque the screw.
Description
Nm lb-in. lb-ft
Propeller shaft anode screw 0.3125-18 x 1.5 in. (38 mm)
long
27 20
CD720 with CMD text
Drive Belts - All Engines
All drive belts must be periodically inspected for tension and condition (excessive wear,
cracks, fraying, or glazed surfaces).
If any drive belts need replacement or tension needs adjustment, see your authorized
Cummins MerCruiser Diesel dealer / distributor.
IMPORTANT: On models with dual-row pulleys and dual belts always inspect both
belts. Never renew just one of the two belts driving the alternator and engine water
circulating pump. Always replace both belts as a pair, preferably as a matched pair.
WARNING
Avoid serious injury. Make sure engine is shut off and ignition key is removed
before inspecting belts.
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