ADJUSTING
/- NUT
LOOSEN NUT
SHIFT HUB
RETIGHTEN NUTS
ARER CORRECT
TENSION
LOCKING
PLATE
FIGURE 6-2 -- BELT TENSION - 1600 FIGURE 6-3 --
BELT TENSION ADJUSTMENT - L654
BELT TENSION, BELT. REPLACEMENT
.
On radiator cooled models, belt tension should be adjusted so that the belt can be depressed about
l/2 to 1” in the center of the longest span between pulleys. The adjustment and replacement procedure
differs between the Lb00 and L654 models.
It is also different on marine models--refer to page 6.4
for marine models.
On L6OO models with the adjustable pulley as shown in Figure 6-2, loosen nuts on
pulley hub, move hub in closer to the inner face to increase tension or away to decrease tension.
Retighten nuts after proper tension is achieved.
To replace belt on L6OO, remove belt guard, loosen
pulley hub until belt can be slipped off the pulleys.
L-654 radiator equipped models have an arrangement shown in Figure 6-3.
On these, loosen the
two mounting capscrews and shift plate out to increase tension or in to decrease tension.
Move plate
all the way in to allow removal of a bad belt over the pulleys.
Retighten capscrews after proper tension
is attained.
l
WATER COOLED’-\
MANIFOLD
RAW
WATER
t MIXE
EXHAUST
1’
SUPER
SLIGHT LIFT
/
HELPS SI LENC ING
PUMP -
RAW WATER-
INTAKE LINE
I EXHAUST LINE WST
PITCH\
DOWN AT LEAST l/2 INCH
PER EACH FOOT
FIGURE 6-4 --
SCHEMATIC OF MARINE “ABOVE WATER LINE” COOLING SYSTEM
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