Toro Groundsmaster 4100-D Service Manual page 181

Removal (Fig. 103)
1. Park machine on a level surface, lower cutting deck,
stop engine, engage parking brake and remove key
from the ignition switch.
2. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of this section.
3. To prevent contamination of hydraulic system during
lift cylinder removal, thoroughly clean exterior of cylin-
der and fittings.
WARNING
Make sure that cutting deck (including wing
decks) is fully lowered before loosening hydrau-
lic lines from lift cylinders. If decks are not fully
lowered as hydraulic lines are loosened, deck
may drop unexpectedly.
NOTE: To ease installation, label the hydraulic hoses to
show their correct position on the lift cylinder.
4. Disconnect hydraulic lines from lift cylinder and put
caps or plugs on open hydraulic lines and fittings. Label
disconnected hydraulic lines for proper installation.
5. Support lift cylinder to prevent it from falling.
6. Remove flange head screw and lock nut that secure
the pin (item 4) to the lift arm. Remove pin from lift arm
and cylinder shaft clevis which will free lift cylinder from
lift arm.
7. Remove one cotter pin from upper pivot pin (item 11).
Pull pivot pin from frame and cylinder barrel clevis.
8. Remove lift cylinder from machine.
9. If hydraulic fittings are to be removed from lift cylind-
er, mark fitting orientation to allow correct assembly. Re-
move fittings from cylinder and discard O--rings.
Groundsmaster 4100--D/4110--D
Installation (Fig. 103)
1. If fittings were removed from lift cylinder, lubricate
and place new O--rings onto fittings. Install fittings into
cylinder port openings using marks made during the re-
moval process to properly orientate fittings. Tighten fit-
tings (see Hydraulic Fitting Installation in the General
Information section of this chapter).
2. Position cylinder barrel clevis to frame and insert up-
per pivot pin into frame and clevis. Secure pivot pin with
cotter pin.
3. Insert pin through lift arm and cylinder shaft clevis.
Secure pin to lift arm with flange head screw and lock
nut.
4. Remove caps and plugs from fittings and hydraulic
lines. Using labels placed during cylinder removal, prop-
erly attach hydraulic hoses to lift cylinder (see Hydraulic
Hose and Tube Installation in the General Information
section of this chapter).
5. Fill reservoir with hydraulic fluid as required.
6. After assembly is completed, operate lift cylinder to
verify that hydraulic hoses and fittings are not contacted
by anything.
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