Greensmaster 3250--DHydraulic System Page 4 -- 106
IMPORTANT: Do not over tighten cap screw.
Threads in tank may become damaged.
6. Locate plugged 2--pin connector with yellow/orange
and black wires in main tractor harness. Attach leak de-
tector harness. Secure leak detector harness to under-
sideof leakdetectiontankwithR--clamp andcapscrew.
7. Remove plug from top of the valve assembly. Care-
fullyfillfloatcavitytothetopofthethreads.Replaceand
tighten fill plug. Clean up any spilled oil (Fig. 76).
8. Before attaching cover plate, test leak detector
switch with ignition key switch in ON/RUN position. The
buzzer should sound with toggle switch held down for
one (1) second.
9. Ifthebuzzerf ailstosound,checktoseeiftheignition
keyswitchisinON/RUN position, all connections are
secureand thetestswitchis heldforone(1)fullsecond.
IMPORTANT: Do not over tighten cap screws.
Threads in tank may become damaged.
10.Secure cover plate and cap tether to the leak detec-
tion tank with five (5) cap screws a nd flat washers (Fig.
76).
NOTE: Monitorhydraulicfluidlevelinsightglassandas
air is removed from the hydraulic circuit, auxiliary tank
may need to be topped off after initial fill.
11.Fill leak detection tank to the top ofsight gauge (Fig.
76).
IMPORTANT: Ifaleakoccursoroilisremoved from the
hydraulic system for service, the lost oil m ust be re-
placed.Ifalargeamountofoilislost,removeleakdetec-
tion tank cover plate and follow steps 7 through 11 for
refilling instructions. For small amounts of oil, simply
add oil to auxiliary tank.
Disassembly and Inspection (Fig. 74)
1. The leak detector can be disassembled using the
leak detector assembly drawing (Fig. 74) as a guide.
2. Clean tank and filler screen with solvent. Inspect
parts for the following:
A. Leaking, cracked or damaged leak detection
tank.
B. Worn or leaking hydraulic hoses. Replace if nec-
essary.
C. Visibly worn or damaged parts.
Assembly (Fig. 74)
1. Coat all O--rings with clean hydraulic oil.
2. Secure sight gauge (item 34) and new O--ring (item
28)totheleakdetectiontank.Torquegaugefrom100 to
125 in--lb (11.3 to 14.1 N--m).
3. Secure both hydraulic barb fittings (item 6) and new
O--rings (item 7) to the leak detection tank. Torque both
fittings f rom 17 to 21 ft--lb (23 to 28 N--m) .
4. Apply antiseize lubricant to threaded holes on bot-
tom of leak detection tank. Secure mounting plate (item
14)totankwithtwo(2)grommets(item32),flatwashers
(item 31) and cap screws (item 30). Torqueboth screws
from 30 to 60 in--lb (3.4 to 6.8 N--m) .
5. Secure formed inlet hose ( item 26) to the barb fitting
(item6)attachedtothe end ofthetankwithhoseclamp.
Secure formed outlet hose (item 15) to the hydraulic
barb fitting (item 6) attachedto the inner sideofthetank
with hose clamp.
6. Secure both hydraulic barb fittings (item 27) and O--
rings to the valve assembly (item 18). Secure oil level
sensor (item 23) and O--ring to the assembly. Secure
cartridge valve (item 25) and O--ring to assembly. Hand
tightenplug(item29)andO--ringtotheassembly.
7. Position valve assembly (item 18) under the mount-
ingbracket(item14).Insertfour(4)capscrews(item12)
withtwo(2)flatwashers(item13)andtwo(2)idlerwash-
ers (item 17) through the bracket and assembly. Hand
tighten four (4) lock nuts to the cap screws.
8. Securetoggleswitch(item35)tocoverplate(item4)
with nut, then secure toggle switch boot (item 37) to
switch. Secure audio alarm (item 5) to plate with cap.
Securedelaytimer(item3)totheplatewithclamp(item
1), socket head screw (item 38) and lock nut (item 2).
9. Connect leak detector h arness to the following:
A. The connector with red and black wires to the
delay timer (item 3).
B. The b lack/white and black wires to the negative
terminaloftheaudioalarm(item5).Connectredand
yellow wires to the positive terminal of the alarm.
C. Theblackandgraywires tothenegative terminal
of the toggle switch (item 35). Connect red and yel-
low wires to the positive terminal or the switch.
D. The red/white and red wires to the positive termi-
nalofthesolenoidvalvecoil(item18).Connectblack
wires to the negative terminal.
E. The connector with yellow and gray wires to the
oil level sensor (item 23).
10.Verify leak detector operation (see Leak Detector in
Chapter 5 -- Electrical System).
To Next Page
Loading...
