Rotary Cartridge Valves
IMPORTANT: Use care when installing the rotary
cartridge valve. Slight bending or distortion of
the stem tube can cause binding and malfunc-
tion. Make sure that deep well socket fully en-
gages the valve base.
1.
Remove rotary handle from valve (Fig. 60):
A. Loosen two (2) set screws that secure handle
cap.
B. Lubricate cartridge threads with clean hydraulic
oil. Thread rotary cartridge valve carefully into the
manifold port. The valve should go in easily without
binding. Torque valve with a deep well socket to 40
ft--lb (54 N--m).
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.
6.
Install rotary handle (Fig. 60):
D. Loosen two (2) set screws that secure handle
base to flow control valve and remove base.
A. Placehandlebaseonflowcontrolvalve andposi-
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.
IMPORTANT: Use care when removing the rotary
cartridge valve. Slight bending or distortion of the
stemtubecancausebindingandmalfunction.Make
sure that deep well socket fully engages the valve
base.
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.
2.
Make sure manifold is clean before removing the
rotary cartridge valve. Remove cartridge valve from
manifold with a deep well socket. Note location of O--
rings and backup rings on valve. Remove and discard
removed seal kit.
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.
3.
Visuallyinspectthemanifoldportandcartridgevalve
for damage to sealing surfaces, damaged threads, and
contamination.
D. Make sure that alignment marks oncap andbase
areinlineandthatarrowoncapispointingtonumber
1
handle cap.
on manifold. Tighten two (2) set screws to secure
A. Contamination may cause valves to stick or hang
up, it can become lodged in small valve orifices or
seal areas causing valve malfunction.
8
B. If sealing surfaces appear pitted or damaged, the
hydraulic system may be overheating or there may
be water in the system.
2
6
CAUTION
9
10
4
11
Use eye protection such as goggles when using
compressed air.
3
5
7
4.
If necessary, clean cartridge valve using clean min-
1
eral spirits. Submerge valve in clean mineral spirits to
flushoutcontamination.Particlesasfineastalcumpow-
der can affect the operation of high pressure hydraulic
valves. Clean and dry with compressed air.
Figure 60
5.
Reinstall rotary cartridge valve into manifold port:
1.
Handle Base
Handle Cap
7.
8.
9.
Set Screw (2 used)
Screw
2.
3.
4.
5.
6.
A. Lubricate new O-rings and backup rings of seal
kit with clean hydraulic oil and install. The O-rings
and backup rings of seal kit must be arranged prop-
erly on the cartridge valve for proper operation and
sealing.
Detent Pin
Lip Seal
Compression Spring
Bushing
10. Sleeve Bearing
11. Flow Control Valve
Set Screw (2 used)
Hydraulic System (Rev. I)
Page 4 -- 94
Greensmaster 3250--D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Greensmaster 3250 D |
| Download File |
|
| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)