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OH140
Repair Manuals
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Tecumseh H22, H25, OHH45, H30, HSK30 Repair Manuals

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QUICK FACTS
Service Information
Mini-Version of Quick Reference Book
(695933)
For more detailed information, check the Quick Reference Book (Form No. 695933) or purchase a complete repair manual from your local Tecumseh Dealer.
For Discount Tecumseh Engine Parts Call 606-678-9623 or 606-561-4983
TABLE OF CONTENTS
GENERAL ENGINE ................................................................................................................3
4-CYCLE QUICK REFERENCE - MODEL LETTER DESIGNATION......................................3
LOCATING AND READING ENGINE MODEL AND SPECIFICATION ...................................3
4-CYCLE QUICK REFERENCE FOR SPEC. NUMBERS-TO-MODEL DESIGNATION .........4
SPARK PLUG REPLACEMENT..............................................................................................5
FUEL RECOMMENDATIONS .................................................................................................6
TECUMSEH 4-CYCLE LUBRICATION REQUIREMENTS .....................................................7
FOUR-CYCLE TROUBLESHOOTING .................................................................................8-9
TECUMSEH 2-CYCLE ENGINE OIL REQUIREMENTS .......................................................10
TWO-CYCLE TROUBLESHOOTING...............................................................................11-12
TECUMSEH / PEERLESS® DRIVE TRAIN ...........................................................................13
BASIC GEAR DRIVE TROUBLESHOOTING .......................................................................14
VST HYDROSTATIC MODEL TROUBLESHOOTING...........................................................15
TECUMSEH / PEERLESS® LUBRICATION REQUIREMENTS ............................................16
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GENERAL ENGINE
The following information is being provided to assist you in locating and recording your engine model and specification numbers. This information will be needed to use this book or obtain parts from a local Tecumseh dealer.
4-Cycle Quick Reference - Model Letter Designation
ECH - Exclusive Craftsman Horizontal
OHV - Overhead Valve Vertical (Medium Frame)
ECV - Exclusive Craftsman Vertical H - Horizontal Shaft HH - Horizontal Heavy Duty (Cast Iron) HHM - Horizontal Heavy Duty (Cast Iron) (Medium
Frame) HM - Horizontal Medium Frame HMSK - Horizontal Medium Frame (Snow King) HMXL - Horizontal Medium Frame (Extra Life) HS - Horizontal Small Frame HSSK - Horizontal Small Frame (Snow King) HXL - Horizontal (Extra Life) LAV - Lightweight Aluminum Frame Vertical LEV - Low Emissions Vertical OH - Overhead Valve Heavy Duty (Cast Iron) OHH - Overhead Valve Horizontal OHM - Overhead Valve Heavy Duty Horizontal
(Medium Frame) OHSK - Overhead Valve Horizontal (Snow King)
OVM - Overhead Valve Vertical (Medium Frame)
OVRM - Overhead Valve Vertical (Small Frame)
(Rotary Mower)
OVXL - Overhead Valve Vertical (Medium Frame)
(Extra Life)
TNT - Toro ‘N’ Tecumseh (Toro Exclusive Series)
TVEM - Tecumseh Vertical European Model TVM - Tecumseh Vertical (Medium Frame)
(Replaces V & VM) TVS - Tecumseh Vertical Styled TVT - Tecumseh Vertical Twin TVXL - Tecumseh Vertical (Extra Life) V - Vertical Shaft VH - Vertical Heavy Duty (Cast Iron) VLV - Vector Lightweight Vertical VLXL - Vector Lightweight Vertical (Extra Life) VM - Vertical Shaft (Medium Frame)
LOCATING AND READING ENGINE MODEL AND SPECIFICATION
THE FOLLOWING WILL BE NEEDED TO LOCATE PARTS FOR YOUR ENGINE.
Model Specification Serial (DOM)
ENGINE: TVM195 150288G 8150C
ENGINE MODEL SPEC NO. D.O.M (SERIAL NO) TVM195 150288G 8150C
Typical Engine I.D. Label
ENGINE MODEL NUMBER LOCATED UNDER COVER
VSK - Vertical Snow King
THIS ENGINE MEETS 1995-1998 CALIF/US EPA PH1 APPLICABLE EMISSION REGULATIONS FOR ULGE ENGINES FUEL REGULAR UNLEADED OIL SAE 30
TVM195 150288G (E) STP318U1G2EA 318 8150 C
ENGINE MODEL
NUMBER
LOCATIONS
3
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4-Cycle Quick Reference for Spec. Numbers-To-Model Designation
The following information is being provided to assist you in locating and recording your engine model and specification numbers. This information will be needed to use this book or obtain parts from a local Tecumseh dealer.
HORIZONTAL 4-CYCLE ENGINES
15000 - H22 25000 - H25 26000 - OHH45 35000 - H30 35400 - HSK30 45000 - H & HT35 45400 - HSK35 47000 - HXL35 55000 - H40 55200 - HS & HSSK40 55500 - HSK40 55700 - H40 55800 - H40 55900 - HSSK40 65000 - H50 65300 - HSK50
10000 - TNT100 12000 - TNT120 20000 - LAV25, OVRM55 20500 - OVRM105 21000 - OVRM60 21800 - OVRM60 22000 - OVRM65 30000 - LAV30 33000 - TVS75 40000 - LAV35 42000 - OVRM905 (Sears Only) 42600 - OVRM40, OVRM45 (Premier Engine) 42900 - OVRM40 (High Tech Look) 43000 - TVS90 43600 - TVS90 (Premier Engine) 43700 - TVS90, TVXL90 43900 - TVS90 (High Tech Look) 44000 - TVS100 44600 - TVS100 (Premier Engine) 44800 - TVS100 46000 - TVS90, TVXL90 46600 - TVS90 48000 - TVS90 50000 - V40 50200 - LAV40 52600 - OVRM50, OVRM55 (Premier Engine) 52800 - OVRM50, OVRM55 52900 - OVRM50, OVRM55 (High Tech Look) 53000 - TVS105 53600 - TVS105 (Premier Engine) 53800 - TVS105 53900 - TVS105 (High Tech Look) 54000 - TVXL105 56000 - TVS105, TVS & TVXL115 56600 - TVS105, TVS115 (Premier Engine) 56800 - TVS115 56900 - TVS105, TVS115 (High Tech Look) 57000 - TVS & TVXL115 57600 - TVS115 (Premier Engine) 57800 - TVS115 57900 - TVS115 (High Tech Look) 60000 - V50, TVM125 61000 - TVS & TVXL115 61600 - TVS & TVXL115 61800 - TVS115 61900 - TVS115 62000 - LAV50 62100 - LAV50 & TVS115 63000 - TVS120 63200 - TVS120, TVEM120 63600 - TVS120 (Premier Engine) 63900 - TVS120 (High Tech Look) 66000 - TVS120 66100 - TVS120 70000 - V60, TVM140 80000 - VH40 90000 - VH50 100000 - VH60
67000 - HS & HSSK50 68000 - OHH50 68500 - OHSK50 69000 - OHH55 69500 - OHSK55 71100 - OHH60 71500 - OHSK60 71700 - OHH65 71900 - OHSK65 72500 - OHSK70 75000 - H60 76000 - HSK60 85000 - HH40 95000 - HH50 105000 - HH60 110000 - HH80
115000 - HH100 120000 - HH120 130000 - H70 130200 - HSK70 132000 - HM & HMSK70 132500 - HMXL70 140000 - HH70 146000 - ECH90 155000 - H & HM80 155000 - HMSK80 155800 - HM85 155900 - HM & HMSK85 156000 - HM90 156500 - HMSK90 159000 - HM & HMSK100 159900 - HMSK105
VERTICAL 4-CYCLE ENGINES
125000 - V70 127000 - VM70, TVM170 127200 - TVXL170 135000 - VH70 145000 - ECV100 147000 - ECV105 148000 - VH80 149000 - VH100 150000 - V & VM80, TVM195 150200 - TVM & TVXL195 150500 - TVM195 151000 - ECV110, TVM195 151500 - TVM220 152000 - ECV120 157000 - VM100, TVM220 157200 - TVM & TVXL220 157400 - TVM220 200000 - OVM120 202000 - OVXL120, OVXL125 202200 - OVXL120 (I/C) 202300 - OHV11, OHV115 202400 - OVXL125 202500 - OHV115 202600 - OVXL125 (I/C) 202700 - OHV12, OVXL120 (Tec.1200) 203000 - OHV125, OVXL125 (Tec1250) 203200 - OHV13 203500 - OVXL125 (Tec.1250I/C), OHV13/135 203600 - OHV14/140 203800 - OHV145 204000 - OHV15/150 204200 - OHV16/160 204400 - OHV165 204500 - OHV155 204600 - OHV17/170 204800 - OHV175 206000 - OHV110 206200 - OHV115 206400 - OHV120 206600 - OHV125 206800 - OHV130 206900 - OHV135 335000 - LEV100 338000 - LEV100 338500 - VSK100 340000 - LEV100 345000 - LEV100 350000 - LEV115 355000 - LEV115 360000 - LEV115 361000 - LEV120 361400 - VSK120 400000 - VLV40 500000 - ULT, VLV B24, VLXL50, & VLV126 501000 - ULT, VLV, VLXL55, & VLV126 502000 - ULT, VLV60, VLV65, & VLV126 502500 - VLV65, VLV66 600400 - TVT691
4
159950 - HMSK110 160000 - HH & OH140 170000 - HH150 & 160 170000 - OH160 175000 - OH120 180000 - OH180 190000 - HHM80 220000 - OHM120 221000 - OHSK110 222000 - OHSK120 223000 - OHSK90 223400 - OHSK110 223600 - OHSK120 223700 - OHSK125 223800 - OHSK130 224600 - OHM120
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Spark Plug Replacement
4-CYCLE SPARK PLUG
Service Number
34046
RL86C
†
OHM120
‡
OHSK110-130
OVM120
Note:
*OVXL models with specification nos.
202700, 203000 and up, use RN4C.
†
OHM 120 models with specification nos. 224000 and up, use RN4C.
‡
OHSK 110, 120, 130 models with specification nos. 223000 and up, use RN4C.
* OVXL120, * OVXL/C120
* OVXL125
Service Number
37598
RJ19LM4 (RJ19LM accept­able substitute .030 gap)
LEV80 - 120 gapped at .045 (1.143 mm)
Service Number 34645
RN4C
†
OHM120
‡
OHSK110-130
OVM120
* OVXL120,
*OVXL models with specification nos. below 202700 use RL86C.
†
OHM 120 models with specification nos. below 224000 use RL86C.
‡
OHSK 110, 120, 130 models with specification nos. below 223000 use RL86C.
* OVXL/C120
* OVXL125
OH180 OHH/OHSK40-130
Service Number
34277
RJ8C
H22 H25 HH40-120 HHM80 HMXL70 HT30 HT35
HXL35 LAV25-50 TVM125-220 TVXL170-220 V40-80 VH40-100 VM70-100
Service Number
33636
RJ17LM
H30-80 HM70-100
HS40-50 VLV-all
Service Number
35552
RL82C
HH140-160 OH120-160
Service Number
37599
RN4C4 (RN4C acceptable substitute .030 gap)
OVRM All gapped at .045 (1.143 mm)
OHV110-17 TVT (V-Twin) OHM90-110
Service Number
35395
RJ19LM
ECV100-120 HMSK70-100 HSK30-70 HSSK40-50 TNT100 VSK100-120 TNT120
TVS75-120 TVXL105 TVXL115
2-CYCLE SPARK PLUG
EUROPA MODELS
4-CYCLE SPARK PLUG
Service Number 29010007
J17LM
All Horizontal Models BV BVL BVS Futura HTL LAV
Premier 153/173 Prisma Spectra Synergy Vantage Centura Legend
Service Number 29010023
RN4C
Premier 45/55 Geotec OHV
Synergy OHV Centrua OHV
Futura OHV
2-CYCLE SPARK PLUG
Service Number 29010007
J17LM
AV85/125 AV520/600 MV100S
NOTE: THE SERVICE NUMBERS LISTED BELOW
WILL GIVE CORRESPONDING CHAMPION AND AUTOLITE SUBSTITUTIONS.
SPARK PLUG AIR GAP IS .030 (.762 mm)
UNLESS OTHERWISE NOTED
TVS600
Champion Autolite 35395 - RJ-19LM 458 37598 - RJ-19LM4 458 35552 - RL-82C 4092 34046 - RL-86C 425
34645 - RN-4C 403 37599 - RN-4C4 403 33636 - J-17LM 245 34277 - RJ-8C 304 611100 - RCJ-6Y 2974 611049 - RCJ-8Y 2976
*NON CANADIAN APPLICATION
Service Number
611100
RCJ6Y
TC300 TCH300
Service Number
611049
RCJ8Y
AH520 AH600 HSK600 HSK840 HSK845
HSK850 HXL840 TC200 TCH200 Type 1500
Service Number
35395
RJ19LM
TVS840 TVXL840
Service Number
33636
RJ17LM
AV520 AV600 TVS600
3/8"
9.525 mm
NOTE:
Not all spark plugs have the same heat range or reach. Using an incorrect spark plug can cause severe engine damage or poor performance. Tecumseh uses all three of the reaches shown. Some plugs require .045 gap.
1/2"
12.700 mm
Note: If you need assistance locating your engine model numbers please check page 2 & 3
5
3/4"
19.050 mm
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FUEL RECOMMENDATIONS
Today’s fuels have a short shelf life and it is recommended you buy no more than a two week supply at a time.
GASOLINE
Tecumseh Products Company strongly recommends the use of fresh, clean, unleaded regular gasoline in all Tecumseh engines. Unleaded gasoline burns cleaner, extends engine life, and promotes good starting by reducing the build-up of combustion chamber deposits. Leaded gasoline, gasohol containing no more than 10% ethanol, premium gasoline, or unleaded gasoline containing no more than 15% MTBE (Methyl Tertiary Butyl Ether), 15% ETBE (Ethyl Tertiary Butyl Ether) or 10% ethanol, can be used if unleaded regular gasoline is not available.
Reformulated gasoline that is now required in several areas of the United States is also acceptable. NEVER USE gasoline, fuel conditioners, additives or stabilizers containing methanol, gasohol containing
more than 10% ethanol, unleaded regular gasoline containing more than 15% MTBE (Methyl Tertiary Butyl Ether), 15% ETBE (Ethyl Tertiary Butyl Ether) or 10% ethanol, gasoline additives, or white gas because engine/fuel system damage could result.
Specialty Fuels: Fuels being marketed for use on small engines can have a significant affect on starting and engine performance. Prior to using any specialty fuel, the Reid Vapor Pressure (RVP) must be determined. Fuels with a rating of less than 50 kPa (7psi) should not be used in summer, and fuel with a rating of 85 kPa (12psi) should not be used during winter.
Storage: For year round fuel stability in and out of season, use “Ultra Fresh™” part number 730245A.
FUEL ADDITIVES
Only fuel additives such as Tecumseh’s fuel stabilizer Ultra Fresh™ part number 730245A or liquid varieties can be used when mixed properly. For winter applications, Isopropyl alcohol fuel dryers may be used in the fuel system but must be mixed at the proper ratio recommended by the manufacturer. NEVER USE
METHANOL BASED DRYERS.
6
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TECUMSEH 4-CYCLE LUBRICATION REQUIREMENTS
We often get questions from both customers and dealers regarding the type and brand of oil we recommend.
Tecumseh recommends the use of a high quality, brand name petroleum based oil in our engines. Very few air cooled engines have any type of oil filtration system, making regular oil changes critical to remove impurities from the engine and maximize engine life. Consult the operators or
repair manual for the oil change interval and viscosity base on equipment operating temperature.
EUROPA MODELS *
VERTICALS VERTICALS (CONT.)
oz. ml oz. ml Vantage 21 630 Centura 21 630 Prisma 21 630 HTL 21 630 Synergy 21 630 BVS 21 630 Synergy "55" 27 810 HORIZONTALS Spectra 21 630 BH Series 21 630 Futura 21 630 Geotec 21 630
Series 35 - 50
TECUMSEH
4-CYCLE ENGINE OIL
RECOMMENDATIONS
SUMMER (Above 320 F 0oC) SAE 30 PART #730225 Using multigrade oil may increase oil consumption. WINTER (Below 320 F 0oC) SAE 5W30 PART #730226 (SAE 10W is an acceptable substitute) (Below 00 F -18oC) Only - SAE 0W30 oil is an acceptable substitute CLASSIFICATIONS: “SF”, “SG”, "SH", "SJ".
DO NOT USE 10W40 CAPACITIES:
Engine Model ......................................... ml Oz.
All LAV, TVS, LEV, OVRM...................... 630 21
ECV, TNT ............................................... 630 21
V & VH50-70 .......................................... 810 27
TVM 125, 140 ......................................... 810 27
TVM 170-220.......................................... 960 32
VM70-100, HHM80 ................................. 960 32
VH100 ....................................................1500 50
All VLV ................................................... 810 27
OVM120, OVXL120, 125 ........................ 960 32
Formula OHV11-13 without filter ............. 960 32
Enduro OHV11-13 with filter ...................1170 39
Enduro OHV13.5 - 17 with filter..............1800 61
Enduro OHV13.5 - 17 without filter .........1650 55
Enduro VT (TVT) with filter......................2366 80
Enduro VT (TVT) without filter.................2129 72
H, HSK30-35 .......................................... 630 21
HS, HSSK40-50...................................... 630 21
H, HH, HSK50-70 ................................... 570 19
OHH/OHSK50 - 70 ................................. 630 21
HMSK, HM70-100 .................................. 720 26
OHSK80-100 .......................................... 720 26
OHM120, OHSK110*-130 ....................... 840 28
HH100,120, OH120-180 .........................1560 52
*NOTE: Model OHSK110 with a spec. of 221000 and up, have a
capacity of 26 oz. (720 ml.)
NOTE: Vertical shaft engines with auxiliary PTO: 26 oz. / 700 ml
7
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Four-Cycle Troubleshooting
The following is provided as a basic trouble shooting guide to any piece of equipment. Its use requires a com­plete review of all conditions and symptoms. Always examine the exterior for clues: leaks, excessive dirt, or obvious damage. Some repairs will require the assistance of a Tecumseh service dealer.
WARNING: ALWAYS USE APPROPRIATE SAFETY EQUIPMENT BEFORE ATTEMPTING ANY REPAIR.
FUEL SYSTEM
Engine Will
Not Start
Check if spark plug is
wet or dry
Wet
Defective spark plug
Use Tester 670366
Restricted air filter
Improper or
stale fuel
Carburetion problems
due to flooding, over
priming, etc.
Ignition system
Dry
Review with the
customer proper
priming procedure
(3-5 primes, waiting
2 seconds between
each prime)
If equipped with a
choke, check for full
travel. Check throttle
cable and control for
proper adjustment.
Check fuel supply and
fuel cap vent
Restriction in fuel
system (filter)
Carburetion problem
(bad bowl gasket)
Poor
compression
Beyond this point contact a Tecumseh Dealer or purchase a repair manual (see educational materials)
NOTE: Refer to Technician's Handbook for a more detailed list of remedies.
8
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Four-Cycle Troubleshooting - continued
WARNING: ALWAYS USE APPROPRIATE SAFETY EQUIPMENT BEFORE ATTEMPTING ANY REPAIR.
IGNITION SYSTEM
Engine Will
Not Start
Check for spark
Use Tester 670366
Spark
No Spark
Check flywheel for
correct key, damaged
or sheared key
Set proper air gap on
external coil
Set proper point gap,
check condensor and
timing
Test coil for
intermittent or weak
spark
Isolate engine from all
equipment (disconnect
wiring harness), repeat
Spark
Equipment problem,
check switches,
wiring and
equipment controls
Replace spark plug
test
No Spark
Engine problem,
check for shorts or
grounds in wiring
Beyond this point contact a Tecumseh Dealer or purchase a repair manual (see educational materials)
9
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TECUMSEH 2-CYCLE ENGINE OIL REQUIREMENTS
The proper type and ratio of two cycle oil is critical to long life and low maintenance of the engine. The use of non certified oils and improper mix ratio’s can cause severe engine damage and possibly void warranty consideration.
The following is a list of 2 cycle engine oil classifications which are certified for use in Tecumseh 2 cycle engines:
• National Marine Manufactures Association, (NMMA), TC-WII or TC-W3
• American Petroleum Institute, (API), TC
• Japanese Automobile Standard Organization, (JASO), FB or FC
TWO-CYCLE FUEL/OIL MIX RATIOS
2-CYCLE
ENGINE OIL
PART NO. 730227
24:1 AV520 Types 670 & 653 AV600 Type 600-10 & Up TC-TCH 200/300 MV100S
Sears/Craftsman 40:1 Two Cycle Oil has been tested and approved for use in all engines, ACCEPT the TC Models which require a 24:1 Ratio.
32:1 TVS600 All Types AH600
50:1 TVS / TVXL HSK840 - 850 HSK600 - 635
TECUMSEH 2-CYCLE ENGINE OIL may be used in a variety of 2 cycle engines including: outboards, lawnmowers, snow­throwers, string trimmers, and edgers at any fuel/oil mixing ratio up to 50:1.
MIXES EASY DOES NOT SEPARATE
PREMIUM BLEND FOR BOTH AIR AND WATER COOLED ENGINES ENSURES CYLINDER WALL LUBRICATION
ENGINE FUEL MIX
U.S. U.S. METRIC METRIC
Amount of Oil Amount of Oil
Gasoline To Be Added Petrol To Be Added
24:1 1 Gallon 5.3 oz. 4 Liters 167 ml
2 Gallons 10.7 oz. 8 Liters 333 ml
32:1 1 Gallon 4 oz. 4 Liters 125 ml
2 Gallons 8 oz. 8 Liters 250 ml
50:1 1 Gallon 2.5 oz. 4 Liters 80 ml
2 Gallons 5.0 oz. 8 Liters 160 ml
10
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Two-Cycle Troubleshooting
The following is provided as a basic trouble shooting guide to any piece of equipment. Its use requires a complete review of all conditions and symptoms. Always examine the exterior for clues: leaks, excessive dirt, or obvious damage. Some repairs will require the assistance of a Tecumseh service dealer.
WARNING: ALWAYS USE APPROPRIATE SAFETY EQUIPMENT BEFORE ATTEMPTING ANY REPAIR.
FUEL SYSTEM
Engine Will
Not Start
Check if spark
plug is wet or dry
Wet
Dry
Defective
spark plug
Restricted
air filter
Improper fuel mix
or stale fuel
Exhaust ports
plugged
Carburetion
problems due to
flooding, over
priming, etc.
Review with customer
priming or choking
procedure
(3-5 primes, if
equipped, waiting 2
seconds between each
prime)
Carburetion problem
(bad bowl gasket)
Check fuel supply
and fuel cap vent
Restriction in
fuel system (filter,
screen)
Poor
Ignition System
compression
Use Tester 670366
Beyond this point contact a Tecumseh Dealer or purchase a repair manual (see educational materials)
11
For Discount Tecumseh Engine Parts Call 606-678-9623 or 606-561-4983
Two-Cycle Troubleshooting - continued
WARNING: ALWAYS USE APPROPRIATE SAFETY EQUIPMENT BEFORE ATTEMPTING ANY REPAIR.
IGNITION SYSTEM
Engine Will
Not Start
Check for spark
Use Tester 670366
Spark
Check flywheel for
correct key, damaged
key or key adaptor
Set proper air gap on
external coil
Set proper point gap,
check condensor and
timing (if equipped)
Test coil for
intermittent or weak
spark
Check electric starter
if applicable
No Spark
Replace spark plug
Isolate engine from all
equipment (disconnect
wiring harness), repeat
Spark
Equipment problem,
check switches, wiring
and equipment
controls
Parasitic load too high
test
No Spark
Engine problem,
check for shorts or
grounds in wiring
Test ignition module
Beyond this point contact a Tecumseh Dealer or purchase a repair manual (see educational materials)
12
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TECUMSEH / PEERLESS® DRIVE TRAIN
The following information is being provided to assist you in locating and recording your Tecumseh Drive Train components model and specification numbers. This information will be needed to use this book or obtain parts from a local Tecumseh dealer.
RIGHT ANGLE DRIVES
600 SERIES
810 SERIES 801 SERIES
915 SERIES
2300 SERIES
100 SERIES
700 SERIES
A or B
A
2400 SERIES
A
A or B
A or B
900 SERIES 920 SERIES 930 SERIES
A or B
A
2600 SERIES
A
A
820 SERIES
1100 SERIES
1200 SERIES
A or B
910 SERIES
2500 SERIES
A
1300 SERIES
A
A
2800 SERIES
A
MODEL NUMBER REQUIRED FOR WARRANTY
PEERLESS
A
205 - 027C
MODEL DATE SERIAL
205 - 027C8194A0048
D.O.M. (DATE OF MANUFACTURE)
1
ORIGINALLY SERIAL NUMBER
MODEL NUMBER REQUIRED FOR WARRANTY
MST - 206 - 502A
DATE MFG. SERIAL NO.
PEERLESS
6304A00013
D.O.M. (DATE OF MANUFACTURE)
2
ORIGINALLY SERIAL NUMBER
SPECIFICATION NUMBER REQUIRED FOR WARRANTY
TECUMSEH
SPECIFICATION NUMBER REQUIRED FOR WARRANTY
TECUMSEH
A or B
SAMPLE (OLD STYLE)
MODEL NUMBER
PEERLESS
1 275 1374
A
MST and VST
Individual Serial Number Manufactured on the 275th Day Manufactured in 1991
3
13
MODEL NUMBER REQUIRED FOR WARRANTY
VST - 205 - 020C MODEL SPEC
D.O.M.
PEERLESS
7070A - 0005
D.O.M. (DATE OF MANUFACTURE) ORIGINALLY SERIAL NUMBER
"NEW TYPE"
SPECIFICATION NUMBER REQUIRED FOR WARRANTY
TECUMSEH
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BASIC GEAR DRIVE TROUBLESHOOTING
Hard Shifting Transaxles and Drive Belts
Often hard shifting is blamed on an internal problem in the transaxle.
To determine if the problem is transaxle or equipment related make these simple checks.
1. Turn the unit off so that all power is removed to the transaxle
2. With the unit off move the shift lever through the shift gate. Movement of the lever should have only slight resistance. The shifting effort should be equal when the engine is off and when running. If the unit is difficult to shift the problem would be internal and the transaxle would need to be removed and repaired
3. If the unit shifts with ease, check the following areas that would be equipment related. Check to see if the belt is releasing from the pulley on the engine and transmission / transaxle, it may require that the belt guides be repositioned. The distance required from the pulley to the guide is typically 1/16" to 3/ 16" (1.6 mm - 4.8 mm), always check the O.E.M. specs.
4. Check to see if the pulley is damaged and may not be releasing the belt.
5. Make sure that the belt is the correct length and type in case it was replaced with a non original, possibly more aggressive belt.
6. Check the brake/clutch pedal to make sure that when the pedal is depressed that the idler pulley is releasing the belt tension before it applies the brake. If this does not happen the unit will still be under a load and be impossible to shift
7. The final area to check would be for damaged or binding shift linkage.
Hard shifting with the engine off could be caused by:
1. Shift linkage out of adjustment.
2. Corrosion in the transaxle or transmission.
3. Damaged shift keys, gears, or shifter brake shaft.
4. Belt guides missing or improperly adjusted (see equipment manufacturer specs.)
Unit Seems to Slip:
1. Check for proper belt adjustment (consult OEM operator’s manual).
2. Check for proper clutch/brake adjustment (consult OEM operator’s manual).
3. Check pulley condition and wheels for sheared or damaged keys.
4. Check drive belt condition, if glazed or worn replace it.
1/16" to 3/16"
(1.6 mm - 4.8 mm)
THIS DIMENSION VARIES FROM EACH MANUFACTURER
For proper declutching to occur, it is very important that the engine belt guide be set at a predetermined gap (set by the manufacturer) and away from the belt with the belt engaged.
With clutch disengaged, it is very important that the belt blossoms away from the engine pulley. Belt must stop turning before transaxle shifting can occur.
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For Discount Tecumseh Engine Parts Call 606-678-9623 or 606-561-4983
VST Hydrostatic Model Troubleshooting
The information on this page has been provided to help understand the internal operation of the VST. Do not use this information to attempt any internal repairs. Tecumseh's current policy on hydrostatic transaxles that have internal failures is to replace the complete unit. This has not changed. However, Tecumseh would like to provide a failure checklist to assist in making an accurate evaluation of the complete tractor to eliminate any unnecessary replacements. Here is a list of items to check and corrective actions to take. To properly test the unit for power loss.
1. Allow the unit to cool before trying the following steps.
2. Put the shift lever in a position that is 1/2 of the travel distance from neutral to forward.
3. Place the tractor on a 17 degree grade.
4. Drive the tractor up the grade (without the mower deck engaged). The loss of power experienced should be approximately 20%. This is considered normal. If the loss of power is approximately 50%, this would be considered excessive.
5. Bring the unit to neutral, shift into forward and note the response. Care should be taken to move the lever slowly to avoid an abrupt wheel lift.
To determine if the problem is with the hydro unit, all external problem possibilities must be eliminated. Here are some potential problem areas.
1. Overheating: Heat can cause a breakdown in the viscosity of the oil which reduces the pressure used to move the motor. Remove any grass, debris, or dirt buildup on the transaxle cover and / or between the cooling fins and fan. Buildup of material will reduce the cooling efficiency.
2. Belt slippage: A belt that is worn, stretched, or the wrong belt (too large or wide) can cause belt slippage. This condition may have the same loss of power symptom as overheating. Typically, the unit which has a slipping belt will exhibit a pulsating type motion of the mower. This can be verified visually by watching the belt and pulley relationship. If the belt is slipping, the belt will chatter or jump on the pulley. If the belt is good, a smooth rotation will be seen. Replace the belt and inspect the pulley for damage.
3. Leakage: The VST and 1800 Series have two oil reservoirs which can be checked for diagnostic purposes. The first is the pump and motor expansion bellows, with a small diameter blunt or round nose probe, check the bellows depth through the center vent hole. Proper depth from the edge of that hole is 3-1/4 - 3-1/2 inches (8.25 - 8.9 cm). The second chamber is for the output gears including the differential. FIRST make sure the tractor is level, then remove the drain/fill plug. NOTE: Some units that do not have differential disconnect will have two plugs. We recommend using only the primary plug. With a small pocket rule insert until you touch bottom of case. You can then remove it and check for 1/4 - 3/8 inches (6.5 - 9.5 mm) contact, this is full at its 8 oz. capacity.
4. Low ground speed: If the linkage is not synchronized to absolute neutral, or the shift lever is not properly fastened to the tapered control shaft, full forward travel may not be achieved. This may cause a false reading and be misdiagnosed as a low power condition. This also could be caused by the brake not releas­ing. To determine absolute neutral, the hole in the tapered control shaft must face straight up and down, at this point make sure the OEM linkage is in neutral. To properly fasten the control lever to the shaft, torque the nut to 25-35 ft. lbs. (34 - 48.3 Nm) of torque with the shaft and the lever in neutral. When attaching the shifter arm to the shaft you must prevent any rotation during torquing. This can be done by placing a long 5/16 bolt in the hole of the shaft. Hold the bolt until the tapers are locked and the nut torque is correct. To make sure that the brake is not binding, drive the unit up a slight grade.. Position the speed control lever into neutral. The unit should coast backwards. If the unit does not coast back slowly, the brake is not released from the brake disk. Adjust the brake linkage to release the brake completely when the foot pedal is released.
5. Hard to shift: Typically hard to shift symptoms are not caused by the hydrostatic unit. The shift arm should move with relative ease. Approximately 40-50 inch lbs. (4.48 - 5.6 Nm) at the transaxle for foot pedal units or 150-200 inch lbs. (16.8 -22.4 Nm) for hand operated units. This varies depending on the type of linkage. Binding may occur in the linkage connections due to rust or moisture. Lubricating these connections and checking for bent or damaged parts should resolve hard shifting.
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For Discount Tecumseh Engine Parts Call 606-678-9623 or 606-561-4983
Tecumseh/ Peerless® Lubrication Requirements
Note: It is CRITICAL to your units long life that you use ONLY the recommended lubricant in all models as listed.
RIGHT ANGLE
TRANSAXLES Model No. Quantity
600 24 oz./710 ml Oil 800 30 oz./887 ml Grease 801 36 oz./1065 ml Grease 820 36 oz./1065 ml Grease 900 26 oz./769 ml Grease 910 18 oz./532 ml Grease 915 10 oz./296 ml Grease 920 30 oz./887 ml Grease 930 30 oz./887 ml Grease 1200 48 oz./1420 ml Oil †† 1301 1305 32 oz./946 ml Oil 1309 1313 1302 1303 1304 1306 1307 1308 1310 1311 1312 1314 1315 44 oz./1301 ml Oil 1316 1317 1318 1320 1321 1322 1325 1328 1329 1319 1323 24 oz./710 ml Oil 1326 1327 LTH 8 oz./240 ml Oil MST200 16 oz./473 ml Oil
VST205 †††† and 1800's
2300 64 oz./1892 ml Oil 2400 32 oz./946 ml Oil 2500 †
TRANSMISSIONS Model No. Quantity
2600 † 700 12 oz./355 ml Grease 700H 12 oz./355 ml Grease 2800 †
Grease: Bentonite Grease Part Number 788067B
Oil: SAE E.P. 80W90 Oil Part Number 730229A
† Refer to O.E.M. Mechanic’s Manual for type of lubricant †† To be filled through shift lever opening ††† Some 1000 Right Angle and T-Drives use Bentonite Grease. †††† Tecumseh's current policy on hydrostatic transaxles with
internal failure, is to replace the complete unit. VST and 1800's have two separate reservoirs which can be checked for diagnostic purpose only. The output gear reservoir can be checked with a small pocket rule as outlined in the Motion Drive Systems Book.
Refer to Motion Drive Systems Book, 691218.
Model No. Quantity
All Models Except * 4 oz./118 ml Grease *1408-P91 *1409-P91 *1410-P91 *3002 3 oz./89 ml Grease *3003 *3028 *3029 *3035 1000 Series 6 oz. / 180 ml Oil
1100 16 oz./473 ml Oil
All Models 3 oz./89 ml Grease
All Models 2 oz./59 ml Grease
All Models 2 oz./59 ml Grease
AND T DRIVES
†††
DIFFERENTIALS
TWO SPEED AXLE
THREE SPEED AXLE
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