Gravely Pro-Master 260 Owner's/Operator's Manual page 31

992219
6
1
11
5
2
3
1. PTO Belt
2. Eye Bolt
3. Springs
4. Drive Belt Idler
5. Mower Drive Belt
6. Blade Spindle Pulleys
7. PTO Belt Idler
8. Hex Bolt
9. Clamp Bolt
10.Jam Nut
11.Electric Clutch
Figure 20
Installation (992219)
(Figure 20)
1. Install the new PTO belt on electric
clutch, idler pulleys, and blade spindle
pulleys.
2. Turn the hex bolt clockwise to adjust the
idler spring until the PTO belt idler is
firmly against the PTO belt.
NOTICE: The PTO idler spring length range
is 13.875 – 14.125" (35.24 to 35.87 cm)
measured at a 3" (7.6 cm) cutting height.
Adjust the idler spring length as needed
(Figure 21).
3. Tighten clamp bolt and jam nut.
4. Install belt guard on rear of unit.
5. Install left hand belt cover on mower
deck.
6. Close footboard (see Mower Drive Belt
And PTO Belt Access on page 29).
10
8
3
7
6
Idler Springs Length
992219
Measure idler
springs
9
length here.
6
4
The idler springs length range is 13.875 –
14.125" (35.24 to 35.87 cm) measured at
a 3" (7.6 cm) cutting height. Adjust as
necessary.
MOWER DRIVE BELT
(992217)
(Figure 18)
Removal
NOTICE: The PTO belt must be removed
from blade spindle pulleys prior to removing
mower drive belt. The PTO belt does not
need to be removed from electric clutch.
1. Remove PTO belt from blade spindle
pulleys (see PTO Belt on page 29).
2. Remove mower drive belt from right
blade spindle pulley and then from
center blade spindle pulley.
3. Loosen drive belt idler pivot bolt just
enough to gain clearance to remove
mower drive belt from under drive belt
idler.
4. Remove mower drive belt from unit.
Installation
1. Install the new mower drive belt on
center blade spindle pulley, right blade
spindle pulley, and drive belt idler.
EN - 31
Figure 21