9.
open side of the pressure seal pointing to the inlet side
of the motor.
Install rear wear plate with pressure seal side up and
Relief Valve Service
IMPORTANT: Do not remove the relief valve as-
sembly unless testing shows it to be faulty. The re-
lief valve assembly must be replaced as a complete
unit.
10.Apply
and o--ring grooves in the body. Install new o--rings to
the body.
alightcoatingofpetroleumjellytonewo--rings
1.
When removing or installing the relief valve, motor
11.
the body and front plate.
Install locating dowels in body. Align marker line on
should be removed from deck and positioned horizon-
tally with the relief valve pointed down (Fig. 52). This
process will prevent relief valve from falling into motor
passages.
IMPORTANT: Do not dislodge seals during installa-
tion.
2.
the backplate. Do not attempt to remove the seat from
the back plate.
Remove plug, o--ring, spring, and relief valve from
12.Gently
pressure should be sufficient to engage the dowels.
slide the body onto the assembly. Firm hand
13.Check
to make sure that the surface of the rear wear
3.
Clean and inspect removed parts. Visually inspect
plate is slightly below the face of the body. If the wear
plate is not below the body,check assembly for ashifted
pressure seal, backup seal, or o--ring. Correct before
proceeding.
relief valve bore and seat in the back plate.
4. Apply hydraulic oiltocomponents. Replace therelief
valve assembly: install relief valve, spring, o--ring, and
plug into the backplate. Tighten plug.
14.Apply
alightcoatingofpetroleumjellytotheexposed
side of the back plate.
15.Place
back plate on assembly using marker line for
proper location. Firm hand pressure should besufficient
to engage the dowels.
16.Install
the four screws and hand tighten.
IMPORTANT: Avoid using excessive clamping
pressureonthemotorhousingtopreventdistorting
the housing.
17.Place
mounting flangeofthemotorintoaviseandal-
ternately torque the screws from 38 to 43 ft--lb (51 to 58
N--m).
RELIEF VALVE KIT
18.Remove
motor from vise.
Figure 52
19.Place
asmallamountofcleanhydraulicoilintheinlet
ofthemotorandrotatethedriveshaftawayfromtheinlet
one revolution. If any binding is noted, disassemble the
pump and check for assembly problems.
Hydraulic System (Rev. D)
Page 4 -- 76
Groundsmaster 3500--D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro Groundsmaster 3500 D |
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| Document Type | Catalog |
| Language | English |
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