Toro Greensmaster TriFlex 3300 Service Manual page 141

NOTE: The ports on the mow control manifold are
marked for easy identification of components. Example:
PRV is the proportional relief valve and T is the return
port (see Hydraulic Schematic to identify the function of
the hydraulic lines and cartridge valves at each port
location).
NOTE: The hydraulic manifold shown in Figure 65 uses
several zero leak plugs. These plugs have a tapered
sealing surface on the plug head that is designed to re-
sist vibration induced plug loosening. The zero leak
plugs also have an O--ring to provide a secondary seal.
If zero leak plug removal is necessary, lightly rap the
plug head using a punch and hammer before using an
allen wrench to remove the plug: the impact will allow
plug removal with less chance of damage to the socket
head of the plug. When installing plugs into the manifold,
torque plugs to the values identified in Figure 65.
IMPORTANT: A flow control orifice (items 18 and 19)
is located beneath the plugs in mow manifold ports
OR1 and OR2. If either of these plugs is removed
from the manifold, make sure to remove orifice and
label its position for assembly purposes. When
installing the orifice in the manifold, make sure that
the orifice is flat in the base of the port. Manifold
damage is possible if the orifice is cocked in the
port.
Cartridge Valve Service
For cartridge valve service procedures, see Control
Manifold Cartridge Valve Service in this section. Refer
to Figure 65 for mow manifold cartridge valve and plug
installation torque.
Rotary Handle Assembly (Fig. 66)
1. To remove rotary handle from valve:
A. Loosen two (2) set screws that secure handle
cap.
B. Remove screw and then lift handle cap from
valve.
C. Locate and retrieve detent pin, compression
spring, bushing and lip seal. The sleeve bearing
should stay in the cap.
D. Loosen two (2) set screws that secure handle
base to flow control valve and remove base.
Greensmaster 3300/3400
2. To install rotary handle:
IMPORTANT: Make sure that flow control cartridge
valve is properly secured in manifold before instal-
ling rotary handle to valve.
A. Place handle base on flow control valve and posi-
tion alignment mark on base with number 1 on man-
ifold. Secure base with two (2) set screws. Apply a
light coating of grease to chamfer on top of base to
ease seal installation.
B. Make sure that sleeve bearing is in handle cap. If
necessary, press sleeve bearing into cap. Install lip
seal on cap with seal lip facing down.
C. While pressing on the cap to keep the lip seal in
place, rotate cap in a clockwise direction until the ar-
row on the cap aligns with number 1 on the manifold.
By rotating the cap clockwise, the valve will remain
closed. Install screw to retain cap.
D. Make sure that alignment marks on cap and base
are in line and that arrow on cap is pointing to number
1 on manifold. Tighten two (2) set screws to secure
handle cap.
6
10
4
3
7
1. Handle Base
2. Handle Cap
3. Detent Pin
4. Compression Spring
5. Bushing
6. Set Screw (2 used)
Page 5 - - 89
8
2
9
5
1
Figure 66
7. Set Screw (2 used)
8. Screw
9. Lip Seal
10. Sleeve Bearing
11. Flow Control Valve
Hydraulic System
11