IMPORTANT: Use care when handling the valvecar-
tridge. Slight bending or distortion of the stem tube
can cause binding and malfunction.
tridgedesignallows,useawoodorplasticprobetopush
the internal spool in and out 20 to 30 times to flush out
contamination. Be extremely careful not to damage car-
tridge. Use compressed air for cleaning.
3.
Remove cartridge valve with a deep socket wrench.
Note correct location for o--rings, sealing rings, and
backup rings. Remove and discard seal kit.
6. Reinstall the cartridge valve:
A. Lubricate new seal kit components with clean hy-
draulic oil and install on valve. The o--rings, sealing
rings, and backup rings must be arranged properly
on the cartridge valve for proper operation and seal-
ing.
4.
Visually inspect the port in the manifold for damage
to the sealing surfaces, damaged threads, andcontami-
nation. Also, inspect cartridge valve for damaged seal-
ing surfaces and contamination.
A. Contamination may cause valves to stick or hang
up.Contaminationcanbecomelodgedinsmallvalve
orifices or seal areas causing malfunction.
IMPORTANT: Use care when handling the valvecar-
tridge. Slight bending or distortion of the stem tube
can cause binding and malfunction.
B. If valve sealing surfaces appear pitted or dam-
aged, the hydraulic system may be overheating or
there may be water in the system.
B. Thread cartridge valve carefully into manifold
port. The valve should go in easily without binding.
C. Torquecartridgevalveusingadeepsockettoval-
ue identified in manifold illustration.
CAUTION
D. If cartridge is solenoid operated, carefully install
solenoid coil to the cartridge valve. Apply Loctite
#242
orequivalenttothethreadsofthevalve.Torque
Use eye protection such as goggles when using
compressed air.
nut to value identified in manifold illustration. Over--
tightening may damage the solenoid or cause the
valve to malfunction.
5.
Clean cartridge valve using clean mineral spirits.
Submerge valve in clean mineral spirits to flush out con-
tamination.Particlesasfineastalcumpowdercanaffect
the operation of high pressure hydraulic valves. If car-
7.
or replace valve.
If problems still exist, remove valve and clean again
JEM MANIFOLD
6
35
ft--lb
10
13
50 ft--lb
(67 N--m)
(47
N--m)
13
11
25
ft--lb
REAR
DOWN
(34
N--m)
10
1
10
4
11
8
1
7
13
13
UP
FRONT
9
2
11
10
10
20
(27
ft--lb
N--m)
3
PLUG TORQUE
Zero Leak: 20 ft--lb (27 N--m)
5
#4
5
ft--lb
N--m)
#6 Zero Leak: 25 ft--lb (34 N--m)
#8 Zero Leak: 50 ft--lb (67 N--m)
11
(6.7
12
Figure 55
1.
2.
3.
4.
5.
Manifold body
Solenoid valve (port SV)
Solenoid coil
Check valve (port CV)
Nut
6.
7.
8.
9.
Directional valve (ports PD1 & PD2)
Pressure reducing valve (port PR)
Relief valve (port RV)
10. #4 zero leak plug with O--ring
11. #6 zero leak plug with O--ring
12. Orifice (.050)
Orifice (.030)
13. #8 zero leak plug with O--ring
Groundsmaster 4100--D
Page 4 -- 69 Rev. E
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 4100 D |
| Download File |
|
| Document Type | Catalog |
| Language | English |
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| Publisher | toro.com |
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