3.
cartridge valve. Remove the valve and seal kit.
Make sure manifold is clean before removing the
8
4.
for damage to sealing surfaces, damaged threads, and
contamination.
Visuallyinspectthemanifoldportandcartridgevalve
2
6
A. Contamination may cause valves to stick or hang
up, it can become lodged in small valve orifices or
seal areas causing malfunction.
9
10
7
11
4
B. If sealing surfaces appear pitted or damaged, the
hydraulic system may be overheating or there may
be water in the system.
3
5
1
CAUTION
Use eye protection such as goggles when using
compressed air.
Figure 48
1.
Handle Base
Handle Cap
7.
8.
9.
Set Screw (2 used)
Screw
2.
3.
4.
5.
6.
5.
If necessary, clean cartridge valve using clean min-
Detent Pin
Lip Seal
Compression Spring
Bushing
10. Sleeve Bearing
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.
11. Flow Control Valve
Set Screw (2 used)
E. On the 2-position directional valve cartridge,
placeindicatorplateoverthedetentplate.Makesure
thearrowpoints directlyatthenumber 1onthelocat-
ing plate.
6.
Reinstall the rotary cartridge valve:
Mowmanifold(Fig.45)usestwotypesofmanu-
Note:
al rotary cartridge valves: flow control (reel speed -- size
F. Onflowcontrolcartridgevalvecartridge,placein-
dicator plate over the detent plate. Make sure the ar-
row points to the right at 45_.
10)
and 4--way directional control (backlap -- size 12).
Installation torque values are different for each type.
A. Lubricate new O-ring and backup ring of seal kit
with clean hydraulic oil and install. The O-ring and
backup ring of seal kit must be arranged properly on
the cartridge valve for proper operation and sealing.
G. While pushing down on the indicator plate and
compressing the springs, thread down a jam nut.
While tightening the set screw, tighten jam nut at the
same time using a 7/16 - inch wrench.
B. Thread valve carefully into the port. The valve
should go in easily without binding. Torque valve to
specification shown in manifold illustration.
H. Threadsecondjamnutallthewaydownthevalve
stem. Apply ”Loctite 242” or equivalent the valve
stem threads. Screw knob all the way down until it
hits the upper jam nut.
7.
Install knob assembly (reel manifold shown in Fig.
45):
I. On 2-position directional cartridge valve car-
tridge, turn knob counterclockwise so the arrow is
A. Install locating plate so that the pin seats into the
locating hole.
90
_ with the back of the manifold. Simultaneously
tighten upper jam nut and turn knob so it is tight and
the arrow is pointing 45_ to the right in line with the
indicator plate.
B. Turn the threaded cartridge valve stem carefully
clockwise until it stops.
J. On flow control valve cartridge, turn knob coun-
terclockwise until the arrow points at the number ”5”.
Simultaneously tighten upper jam nut and turn knob
so it is tight and the arrow is pointing at the number
C. Facedetentplatecounterbore down.Threaddet-
ent plate down onto the valve stem until it is stopped
by the locating plate. Turn detent plate back counter-
clockwise 1/4 turn.
”1”
on the locating plate.
D. Center one detent plate hole over a locating plate
indentation. Drop a ball into each hole, then drop a
spring into each hole.
Hydraulic System
Page 4 - 78 Rev. E
Reelmaster 6500-D/6700-D
| Categories | Lawn Mower Manual, Toro Lawn Mower Manual |
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| Download File |
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| Document Type | Service Manual |
| Language | English |
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