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3.15 CUTTING MODES__________________________________________________________
1. The mo wer may be oper ated in the F ixed Mo de or
the Floating Mode.
2. Fixed M ode is gen erally use d fo r c utting heights
greater than 1 in. (25 mm) and the mower does not
require a fr ont r oller un less the ter rain is r ough an d
uneven.
If a front roller is required, the roller should be raised
1/4 in. (6 mm) higher than the rear roller and used for
anti-scalp purposes only.
3. Floating Mod e is gen erally used for cutting heights
less th an one i nch ( 25 mm ) an d a fr ont r oller is
required.
If a 2-1/2 in. (63 mm ) s olid fr ont r oller is us ed, the
cutting hei ght will range fr om 3/8 to 2- 1/8 in. ( 9 to
54 mm).
If a 3 in . ( 76 mm) gr ooved fr ont r oller is us ed, th e
cutting hei ght will range fr om 3/8 to 2- 1/4 in. ( 9 to
57 mm).
3.16 CUTTING HEIGHT ADJUSTMENT_____________________________________________
1. Raise and lock the lift arms in transport mode.
2. For easier ac cess to the he ight adjusters on th e
motor end of the front reels, Jacobsen recommends
raising the front end of the mower just a fe w inches
off the ground then, being careful not to da mage the
hydraulic hos es, tilt the front mowe rs 90 deg rees,
and tether the mowers together.
3. On t he r ear mower ( center) r emove t he pi n a nd
collar on the shaft and slide the mower backwards.
4. Always make the r
(Sections 3.13 and 3.14) before making the cutting
height adjustment.
5. Select F ixed or
Floating Mod e and co nvert the
mower accordingly.
6. Loosen sk id mou nting ha rdware ( D - Figure 3N)
then ad just the c utting he ight. ( A sp ecial to ol is
provided wit h the mo wers. A 5/8 in . so cket an d
ratchet are required).
eel-to be dknife adjustment
ADJUSTMENTS
4. To co nvert the mow er fr om F ixed to F loating M ode,
remove h ardware ( H) fr om e ach si de o f the th ree
mower frames.
Install a front roller and store hardware (H) for future
conversion to fixed mode.
5. To co nvert the mow er fr om F loating t o F ixed M ode,
assemble har dware (H) as shown and r emove or
raise the front roller.
H
H
Figure 3O
Tether
Figure 3P
3
H
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