Yazoo YHR Series User manual

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, Sold 8 ServIced By:
SCHUURMANSFARMSUPPLY
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&05-589-5909
SchuurmansFarm Supply
41111 303rd Street
Avon. SD 57315
YAZOO YHR-SERIES
COMMERCIAL MOWER SAFETYSUMMARY
OWNER'S MANUAL..
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YHR-SERIES MODELS INCLUDE: EQUIPMENTDESCRIPTIONAND DATA
. YHR~3,
. YHRLW20 \""'--
. YHRLK2\
i 0 OPERATINGPROCEDURES
" . YHRK20
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J8"'" ' .YHRLK18
tI. YHRK18. ,- TanllAI CQ nnTIM~ DDt"\I"CnIIDco
LTROUBlESHOOTING PROCEDU
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IllUSTRATED PARTSLIST
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Rev.Nov.20,1990 LITERATURE NUMBER 1301-098

SAFETYSUMMARY
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t.OVERVIEW
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IThis manualcontains technical data on the following YAZOO YHR-SERIES 3-
wheel hydrostatic-drive mowers:
YHRLK23 YHRLK20 YHRLW20 .II
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YHRK20 YHRLK18 YHRK18 !
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Unlessspecificallydesignated otherwise, these units will be referred to as a
I mowers. These mowers are A.N.S.I. 871.4 1984approved. This chapter is
r designed to assistyou, the owner/operator, to become sufficientlyequipped to
Itsafely perform the following tasks as outlined inthis manualfor your particular'
, mower:
t . assembly
I . adjustments
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.\ . safe operation
I! . basic operator maintenance,i.e., inspections, lubrications, servicing,
: . troubleshooting and simple remove and replace functions that do not require
1 specialtools,skillsorfacilities
.to correctly order partsto effect preventivemaintenance and/or repair when
necessary.
As the owner/operator, you should become closely associated with this manual.
Pleaseread and re-readthis SAFETYSUMMARY and always be aware of the
DANGER,WARNING, CAUTION, and NOTE signals placed in this manual.
\.. DANGER -indicates an IMMINENTLY HAZARDOUS
h situation which, if not avoided, WILL RESULT in
.. death or serious injury
WARNING -indicates a POTENTIALLY hazardous
h situation which, if not avoided, COULD RESULT
.. in death or serious injury
.1 YAZOO YHR-SERIES MOWERS
OWNER'S MANUAL
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SAFETY SUMMARY
CAUTION- indicates a potentially hazardoussituation .f
h which, if not avoided, MAY RESULTin minor or
.. moderateinjury
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: NOTE- relevant information to assist you in the perfor- f
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! mance of a task. :1
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GENERALSAFETYPRECAUTIONS t
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Thefollowinggeneralsafetyprecautionsshouldbefollowedwheneverthecut- J
tingdecki,s,beingused.Ac~nstantstateof aw,areness',concern,pr~denceand L
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propertrainingshouldprevailoverallpersonsInvolvedIntheoperation, i
transport,maintenance,andstorageofthemower.Good judgementandcom-
monsenseshouldalwaysprevail.Takeeffortsto preventthepossibilityof un- ~
authorizedorunknownuse,oravailabilityofthismowertoanyoneoutsideyour ~
directsupervision.Alwaysremoveandstorekeywhenmowerisnotinuse. j
1 READANDTHOROUGHLYUNDERSTANDTHISMANUAL,andalldecalson t
unit,BEFOREattemptingtooperate ~
2 NEVERallowchildrento operatethemower.NEVERallowanyadultto operate .1 1' f
themowerwithoutproperinstruction.REMOVEKEYwhennotinuse. j
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! 3 NEVERattempttocarrychildrenoranyotherpassengers,Themowerwas ~
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f designedto carryONEOPERATORALONE.
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'. 4 NEVERmowwhenchildrenand/orbystandersarepresent.
SALWAYSWEARSUITABLECLOTHINGwhenoperatingmower,i.e.,proper
, boots,gloves,safetygogglesforeyeprotection,andearmuffsorearplugsto
'r protectagainstuncomfortableorobjectionablenoise.DONOTWEARLOOSE-
FITTINGAPPARELthatcouldgetcaughtinthemovingpartsof mower.
, 6 DONOTattempttooperatemowerifyouarenotsittinginoperator'sseat.
1, ALWAYSgetintooperator'sseatfromleftside(sittinginseatlookingforward)in !
... orderto avoidinadvertentcontactwithvariablespeeddirectionalcontrolpedal. I
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YAZOO YHR-SERIESMOWERS 2
OWNER'S MANUAL
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SAFETYSUMMARY
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.7 ALWAYS BE ALERT when operating mower. DO NOT let outside interests dis-
tract you.
8 ALWAYS CLEAR AREA to be mowed of any foreign objects (stones, wire, cans,
bottles, etc. that could be picked up and thrown by mower.
9 ALWAYS DISENGAGE ALL attachment levers BEFORE ATTEMPTING to start
mower.
10 ALWAYS DISENGAGE POWERTAKE-OFF (PTO) attachments, RETURN ALL
leversto NEUTRAL POSITION, STOP engine and REMOVE key PRIORto leaving
operator's seat FORANY reason. fj'
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11 ALWAYS DISENGAGE power, STOP engine, and REMOVE spark plug wire, ~
Jbefore attempting any inspection, adjustment,cleaning, or repair. ~
i12 When not mowing, DO NOT drive (transport)the mower with cutting deck
blades engaged.
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13 USE CARE when mowing around fixed objects. NEVERdeliberately run over
foreign objects as damage to mower and/or injuryto others may result.
. 14 NEVER MOW on a surface angle greater than 15 degrees. ALWAYS MOW
ACROSSthefaceonslopesof15degreesorless-NEVERUPANDDOWN.DO
NOTATTEMPT sudden starts or stops when mowing on a slope. AVOID SUDDEN
TURNS and use EXTREME CAUTION when changing directions on any slope. =~
15 IF MOWER STOPS while going uphill, DISENGAGE BLADE and BACK
MOWER SLOWLY down hill.
16 Use CARE when operating near, or crossing roadways.
17 DISENGAGEcutting deck bladeswhen backing up. DO NOT MOW IN
REVERSEas a practice. IF ABSOLUTELY NECESSARYto mow in reverse,
ALWAYS OBSERVEAREA UNDERAND BEHIND YOU before mowing.
18 Mower and attachments SHOULD BE STOPPED AND INSPECTED AFTER
STRIKING ANY FOREIGN OBJECT. ANY DAMAGE should be repaired before
using mower again.
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SAFETY SUMMARY
19 DONOTaltergovernorsettingonengine.Engineoverspeedcouldresultin ..
severedamageand/orinjury. . .
20 DO NOT OPERATE mower without a mufflerinstalled.
21 KEEPALL SHIELDS AND SAFETY DEVICES INTACT. NEVERtry to circum- f
vent or disablethese features. r22 NEVERmow at NIGHT, in LOW-LIGHT conditions, in RAIN or when GRASS IS \ ~~
WET. .
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23 In order TO PREVENT BREATHING of concentrated CARBON MONOXIDE I.
and other NOXIOUS FUMES, DO NOT operate engine in confined air space. \
\'" 24 ALWAYSallowtheengineto cooldownBEFOREATTEMPTINGto store (
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mower in any enclosed structure such as a garage or shed. :
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i 25ALWAYS keep mower cleanto prevent accumulation of grease, grass, leaves I
and dirt. This will reducethe chance of fire due to heat build-up. \
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26 KEEPALL NUTS, BOLTS AND SCREWSTIGHT. Keepyour cutting section in ..~ ~ .i good working condition by performing preventivemaintenanceas outlined in this !
\ manual. J
27 NEVERadd fuelto a running engine. ALWAYS WAIT at leastfive (5) minutes ;
before refuelingand REFUELWITH THE ENGINE OFF. KEEP FUELAWAY I
FROMSPARKSORFLAMES.WIPEAWAYanyfuelspillageBEFOREstarting 1
unit. !
28 ALWAYSSAFELYRELIEVEPRESSUREinhydraulicsystemorfuelsystem .1-Co" PRIORTO ANY ATTEMPT TO DISCONNECT LINES OR TO PERFORM WORK tON SYSTEMS.
l 29 ALWAYS KEEP BODY AND HANDS AWAY from pin holes, fittings, or nozzles i: ",,:~
that ejectfluid under high pressure. ALWAYS use cardboard or a piece of paper - I "c~
NEVER YOUR HANDS OR BODY PARTS - to search for leaks. Fluid escaping !
\ under high pressure CAN HAVE SUFFICIENT FORCETO PENETRATE SKIN 1
AND DO SERIOUS DAMAGE. IF THIS FLUID IS INJECTED INTO THE SKIN, IT lMUST BE SURGICALLY REMOVEDWITHIN A FEWHOURS BYA PHYSICIAN !'~
FAMILIAR WITH THIS FORM OF INJURY OR GANGRENE MAY RESULT. "
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YAZOOYHR-SERIES MOWERS 4 I
OWNER'S MANUAL
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.i EQUIPMENT DESCRIPTION AND DATA
a 8 DESCRIPTION OF MAJOR COMPONENTS.
This table has been divided into three (3) columns. The first column, "KEY", is
the key reference number on the associated illustration to aid in identification.
i The second column, "MAJOR COMPONENT", is the name, and the third
~ column, "FUNCTION", is a brieffunctional description of that major component. ;;,l~;
i KEY MAJOR COMPONENT FUNCTION
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1 Tractor Provides mount and operating power for
cutting deck
. . 2 Cutting deck Performsmowing function.
I3 Hood Provides enclosure for engine and drive
train components.
4 Hydrostatic Transmits motive force to transmission
transmission transaxle to propel tractor.
5 Transaxle Converts transmission energy to drive
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i i wheels.
t ) . 6 CIS gearbox Transmits power from engine to deck :"";
j blades.
I 7 23 HP Kohler, .
20 HP Wisconsin,
! 20 HP Kohler, or ~
\ 18 HP Kohler Provides power to SUNDSTRAND/YAZOO ~
power pack and provides power for ~
I hydrostatic transmission and PTO shaft. , c-
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8 Fuel tank Storage for on-board fuel.
9 Hydraulic reservoir Storage for system lubricating/hydraulic
. fluid.
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OWNER'S MANUAL
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EQUIPMENT DESCRIPTIONAND DATA
10 Transmissionfan Keepshydrostatic transmission within
specified operating temperature range. . ~
11 Tow valve button Allows unitto to be moved by de-clutching
hydrostatic transmission. Button is
disengaged when engine is started. (, 1
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EQUIPMENT DATA. ) ,
Includesdatafor the following YAZOO models: (
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YHRLK23 YHRLK20 i".
YHRLW20 YHRK20 )
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YHRLK18 YHRK18 "X, ,.
Theseabove-listedmodels may be combined with any of availablePSR-Series ; J
48/60/76-inch 3-blade cutting decks. #.
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ENGINE (as related by model) - j ,
. YHRLK23 - Kohler23 HP .i 4
. YHRLW20 - Wisconsin 20 HP I.,
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. YHRLK20, YHRK20 - 20 HP Kohler ,,1
. YHRLK18, YHRK18 - Kohler 18 HP i
STEERING- f i
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. Rearwheel t 31'
TIRES - 1 '
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. Front- 18X 9.5 pneumatic r '
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. Rear- 16X 6.5 pneumatic t
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VAZOO VHR-SERIES MOWERS 6 .'
OWN ER'S MAN UAL i
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)EQUIPMENT DESCRIPTION AND DATA
, HYDRAULIC SYSTEM -
I . . SUNDSTRANDBDU-21hydrostatictransmissioncoupledto aYAlOO trans- 1
axle axle using SAE30 weight oil API service SG,SF/CC,CD ~'
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, ) AIR CLEANER - ,~
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~ . Dualelement replaceablefilter
, HYDRAULIC SYSTEM OIL FILTER - :~
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I. Spin-on disposable cartridge 1
ELECTRICAL SYSTEM - I
, . 12Volt, negativeground with starter,battery,and 15amp !
r alternator.
~ CUTTING SECTION -
l . 48/60/76-incheswidewiththreeblades.Manually-controlledandadjustable
.I from11/2-3 inches.PoweredfromPTOgearboxontractorto cuttingdeck.
Deadheadpulley powers beltsto each blade.
J . DRIVING SPEED - (Infinitely variable)
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J . FORWARD,between0 - 9.5 mph
t . REVERSE,between0 - 4.5 mph
I DRYWEIGHTS (Approximately)-
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I . Tractors 750 Ibs. (340.2kg)
1 . 48-inch cutting section - 360 Ibs. (163.3kg)
I . 60-inch cutting section - 400 Ibs. (181.4kg)
. 76-inch cutting section - 470 Ibs. (213.1kg).
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EQUIPMENT DESCRIPTION AND DATA
FLUID CAPACITIES - US gallons (liters)
. Fueltank 4.6 (17.4) Ii)
. Lubricating oil, engine (by model number)
YHRLK23 US pints (liters) 8.0 (3.8)
YHRLW20 US pints (liters) 7 (3.4)
YHRLK20, YHRK20 US pints (liters) 3.5 (1.7)
YHRLK18, YHRK18 US pints (liters) 3.5 (1.7)
f . Lubricating oil,SAE30 weight oil API service SG,SF/CC,CDfor
~ transaxle/hydraulic system
" US quarts (liters) 6.0(5.7).
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YAZOO YHR-SERIES MOWERS 8
OWNER'S MANUAL
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i j OPERATING PROCEDURES
t !.DESCRIPTION AND USE OF OPERATORS,
i CONTROLS AND INDICATORS.
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.1 This table has been divided into three (3) columns. The first column "KEY", is the
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Ikey reference number on the associated illustration to aid in identification. Thesecond column, "CONTROL OR INDICATOR" is the name and the third column,
"FUNCTION", is a brief functional description of that control or indicator.
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i J KEY CONTROL/INDICATOR FUNCTION
I! 1 1 3-Position Key Switch Switches current to ignition
! r system as follows:
t STOP -opencircuit,
f electrical system off.
1. RUN -currentto
if; electrical system. Ii START -ismomentary
1. contact switch to engage
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t ;\'~i .starter motor
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1 2 Ammeter Indicates the rate of charge of alternator.
, 3 Hour Meter Measures and indicates the accumulative
,} timethatenginehasrun.
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; , 4 Throttle Control Manual engine speed
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I f control.
I i Full rear position is open
Full forward is closed position.
S Inclinometer Shows mower angle of incline
6 Manual Choke Allows easier start-up of cold engine when
the CHOKE is engaged.
7 Blade Control lever Engage/Disengage cutting deck blades.
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f OWNER'S MANUAL
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