caution - Toro

Removal (Fig. 88)
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 beginning
of this section.
3. To prevent contamination of hydraulic system during
control valve removal, thoroughly clean exterior of control
valve and fittings.
4. Remove lift/lower control valve using Figure 88 as a
guide.
5. If hydraulic fittings are to be removed from control
valve, mark fitting orientation to allow correct assembly.
Remove fittings from valve and discard O--rings.
Installation (Fig. 88)
1. If fittings were removed from control valve, lubricate
and place new O--rings onto fittings. Install fittings into
port openings using marks made during the removal
process to properly orientate fittings. Tighten fittings
(see Hydraulic Fitting Installation in the General Information
section of this chapter).
2. Install lift/lower control valve using Figure 88 as a
guide.
A. If valve bracket (item 2) was removed, tighten cap
screw (item 24) only until the washer (item 23) begins
to seat against the isolator (item 3). The isolator
should not be deformed.
3. After installation, check operation of cutting deck
raise and lower switches (see Cutting Deck Raise and
Lower Switches in the Adjustment section of Chapter 5
-- Electrical System).
4. Make sure hydraulic tank is full. Add correct oil if necessary
before returning machine to service.
Hydraulic
System
Groundsmaster 4100--D
Page 4 - 125
Hydraulic System