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AGLE Parts and Service Manual V e hicl e T ype s: T T- 4 , TT - 5 , TT - 6 , & T T - 8 En gine T ype : Yanmar Diesel 4TNV98 Tier II & Tier III Engine Models TT4-8 4TNV98 REV30 8.4.15...
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Eagle inventories most of the component parts found in its TT-series tow tractors, and most spare/service parts can be shipped the same day the order is received. Parts orders need to be received at Eagle by 12:00 pm (Noon) EST in order for the parts to be shipped that same day.
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ABLE OF ONTENTS INTRODUCTION ........................3 & U ......................... 3 URPOSE SE OF ANUAL ............................3 ECHNICAL ASSISTANCE ........................... 3 RDERING PARE ERVICE ARTS ............................3 ONTACT NFORMATION WARRANTY ..........................9 ............................9 ARRANTY INFORMATION ............................10 AFETY INFORMATION ............................. 11 EHICLE ID INFORMATION ...........................
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ABLE OF ONTENTS ..................................61 XLES Axle Assembly—Dana Front Non-Drive (2WD) only ................61 Axle Assembly—Brierton Front Non-Drive (2WD) only ................62 Axle Assembly—Front Drive (All Wheel Drive) ..................63 Axle Assembly—Rear ............................64 Recommended Dana Axle Torque Specs ...................... 65 Axle Assembly Breakdown—Brierton Front Non-Drive (2WD) ...............
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ABLE OF ONTENTS .............................121 LECTRIAL SCHEMATICS Dash Wiring Diagram ...........................121 Yanmar Engine Wire Harness Tier II Engine ....................122 Yanmar Engine Wire Harness Tier III Engine ....................124 Vehicle Wiring Harness Yanmar Tier II Engine ..................126 Vehicle Wiring Harness Yanmar Tier III Engine (Through 9/2013) ............128 Vehicle Wiring Harness Yanmar Tier III Engine (10/2013 through 9/2014) ..........130 Vehicle Wiring Harness Yanmar Tier III Engine (9/2014 and Later) ............132 Vehicle Logic Controller ..........................134...
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ARRANTY ARRANTY NFORMATION Please read the Eagle Tugs warranty statement (available on our website) carefully. When contacting Eagle Tugs for warranty or parts service, please have the following information ready: Tractor model number Tractor serial number Current hour reading TT4-8 4TNV98...
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Keep hands and other objects clear of the radiator and blades. For more information regarding safety please refer to the operations manual provided with your tug. This manual can also be found on the Eagle Tugs website at www.eagletugs.com. REV30 8.4.15...
ARRANTY ID I EHICLE NFORMATION This information can be found on the tractor’s I.D. Plate located on the firewall next to the driver’s seat. Additionally, there is a permanent serial number located on the rear bulkhead inside the engine compartment. MODEL _________________________________________ SERIAL NO...
Outside the Continental U.S. and Canada please contact Eagle directly. NOTE: At the time a warranty claim is filed it may be necessary for Eagle Tugs to request a copy the maintenance records kept on your tug. For your convenience a printable Preventative Maintenance Schedule page is available in the Maintenance section of this manual.
TO HELP US SERVICE YOU BETTER. HAVE TUG MODEL AND SERIAL NUMBER AVAILABLE WHEN ORDERING PARTS NOTE: THIS MANUAL COVERS PARTS & SERVICE FOR EAGLE TT4—TT8 2WD AND ALL WHEEL DRIVE MODELS WITH BOTH THE YANMAR TIER II AND TIER III ENGINES. PLEASE BE SURE TO CHECK THE...
OWER TRAIN ENGINE DRESS - FAN ASSEMBLY, PRINCE PUMP, AND MOTOR MOUNTS *See page 20 to determine proper spacer (item 10) needed TORQUE TO 100 ft-lb TORQUE TO 37 ft-lb TORQUE TO 100 ft-lb TORQUE TO 37 ft-lb REV30 8.4.15 TT4-8 4TNV98...
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OWER TRAIN Item Part Number Qty. Description HCS, M8X1.25 X 45 LOCK WASHER, M8 FLAT WASHER, 1/4 A-TT8-00312 A-TT8-00360 FAN SPACER 129900-42450 PULLEY (INCLUDED WITH ENGINE) HCS, M8X1.25 X 70 HCS, M8X1.25 X 60 A-TT8-00354 REMOTE FAN BRACKET FAN BRACKET SPACER (SEE PG. 20) HCS, M8X1.25 X 40 A-TT8-00353 WATER PUMP SHEAVE...
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OWER TRAIN ENGINE DRESS - TRANSMISSION TORQUE TO 70 ft-lb TORQUE TO 50 ft-lb TORQUE TO 70 ft-lb TORQUE TORQUE TORQUE TO 45 ft-lb TO 70 ft-lb TO 55 ft-lb TORQUE TO 50 ft-lb TORQUE TO 45 ft-lb TORQUE TO 45 ft-lb TORQUE TO 45 ft-lb Used on engines not equipped with integrated rear crank seal.
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OWER TRAIN Item Part Number Qty. Description SHCS, M12X1.75 X 40, GR 10.9 TT08-54-003-KA TRANSMISSION - AWD TT08-54-005-KA TRANSMISSION - 2WD HCS, M12X1.75 X 25, GR 10.9, ZN PLATED TM27C00305-ID FLEX PLATE WASHER B-TT10TD-00016-ID FLEX PLATE HCS, M16X2.0 X 45 LOCK WASHER, M16 B-TT5D-00017-4TNV FLEX PLATE ADAPTER...
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OWER TRAIN Choosing the Correct Fan Bracket Spacer The fan bracket spacer shown above comes in two different versions. Version A-TT8-00361 is .625" thick. Ver- sion A-TT8-00363 is .50" thick. Using this guide will make determining which version you need very easy. Version A-TT8-00361: This part should be used if the cover circled below is a stamped part with a dome in the center and a ridge around the outside as shown: Version A-TT8-00363: This part should be used if the cover circled below is a flat sheet as shown:...
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OWER TRAIN CRANKSHAFT & PISTON—YANMAR TIER II DIESEL Item Part Number Description 129907-22050 RING SET STANDARD 729907-22950 RING SET O/S=0.25 129907-22090 PISTON WITH RING STANDARD 129907-22910 PISTON WITH RING STANDARD O/S=0.25 120130-22301 PISTON PIN 22252-000300 CIRCLIP 30 129900-23910 BUSH, PISTON PIN 129900-23600 BEARING ASSY, CRANKCASE PIN STANDARD 129900-23610...
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OWER TRAIN CRANKSHAFT & PISTON—YANMAR TIER III DIESEL Item Part Number Description 129927-22050 RING SET STANDARD 729927-22950 RING SET O/S=0.25 129907-22080 PISTON WITH RING STANDARD 129907-22900 PISTON WITH RING STANDARD O/S=0.25 120130-22301 PISTON PIN 22252-000300 CIRCLIP 30 129900-23911 BUSH, PISTON PIN 129900-23601 BEARING ASSY, CRANKCASE PIN STANDARD 129900-23611...
OWER TRAIN OIL PAN ASSEMBLY Item Part Number Description 122916-01790 SEAL 977770-01212 GASKET, LIQUID 26106-080122 BOLT M8 X 12 PLATED 119640-01640 DRAIN PLUG 22190-220002 SEAL WASHER 22S 129916-01710 OIL PAN ASSEMBLY INCLUDES ITEMS 4 & 5 TT4-8 4TNV98 REV30 8.4.15...
RIVELINE DRIVE SHAFT ASSEMBLY-FRONT (ALL TT 4-8 MODELS) Item Part Number Qty. Description A-TT8-00201-1 TRANSMISSION OUTPUT YOKE SHAFT-FRONT A-TT4-00132-1 CROSS BEARING FRONT D/S NEW STYLE A-TT4-00134 DRIVE SHAFT SPRING A-TT8-00202-4 DRIVE SHAFT A-TT4-00130 END YOKE STRAP AND BOLT KIT A-TT4-00137-1 CROSS BEARING FRONT D/S NEW STYLE 2-4-1921 END YOKE...
TORQUE CONVERTER A-TT4-00419 TRANSAXLE SHIFT LEVER - MANUAL CONTROL 85705 GASKET AND FILTER MAINTENANCE PACKAGE *Torque converters may vary. Please contact Eagle for further information. Transmission replacement kit part numbers and application guide: Kit Number Application TT08-54-003-KA TT4-8 Ford/TME-Gas/TME-Diesel/Yanmar AWD...
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RANSMISSION TRANSAXLE CASE EXTENTION & RETAINER (ALL TT 4-8 MODELS) Item Part Number Description 6501474 SCREW-HEX CAP-WASH M8-1.25 X 16 4471573 CUP(NOT SOLD SEPARATELY) 4504568 SPACER KIT 4269787 RETAINER, OIL 4329829 RETAINER, BEARING 6500368 SCREW-HEX CAP-M8 X 1.25 X 23 SCREW-HEX CAP-WASH HEAD M8-1.25 X 2 SCREW-HEX CAP M8-1.25 X 15 4659342...
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XLES AXLE ASSEMBLY—BRIERTON FRONT NON-DRIVE TT4-TT6 2WD ONLY Item Part Number Description A-TT10-00117 U-BOLT KIT A-TT4-00113 SPRING MOUNT PAD A-TT4-00116 LEAF SPRING TT4-8 4TNV98 REV30 8.4.15...
U-BOLT KIT A-TT4-00363 AXLE CLAMP PLATE A-TT4-00366* WASHER A-TT4-00365* 4313905 LEFT HAND BACKING PLATE 4313904 RIGHT HAND BACKING PLATE *INCLUDED IN U-BOLT KIT **CALL EAGLE TUGS FOR INFORMATION IF YOUR TUG IS EQUIPPED WITH LIMITED SLIP REV30 8.4.15 TT4-8 4TNV98...
LEANER AIR CLEANER ASSEMBLY Item Part Number Description A-TT4-00091-2 AIR CLEANER A-TT4-00092-1 AIR CLEANER BRACKET #60 HOSE CLAMP A-TT4-00099 INTAKE TUBE REDUCER #40 HOSE CLAMP AIR CLEANER TUBE 2 1/2 OD X 26.5 A-TT4-00093 INTAKE TUBE #36 HOSE CLAMP P601437 AIR CLEANER ELEMENT REV30 8.4.15 TT4-8 4TNV98...
& XHAUST INTAKE SYSTEM EXHAUST SYSTEM Note: Item 13 used on tractors manufactured before June 2013. Item Part Number Qty. Description A-TT4-00258-2 MUFFLER TT08-57-001-KA 2 PIECE EXHAUST PIPE ASSEMBLY 129930-13200 EXHAUST GASKET A-TT4-00260 EXHAUST HANGAR A-TT4-00254 2 IN HEAVY DUTY EXHAUST CLAMP TT08-57-002-SA SPACER, 3/8 ID X 2 LG HCS, 3/8-16 UNC X 3.0, GR 8...
& XHAUST INTAKE SYSTEM INTAKE MANIFOLD—YANMAR TIER II DIESEL Item Part Number Description 119129-77520 INTAKE ELBOW 119129-77020 GASKET, AIR HEATER 119005-77050 AIR HEATER 121850-77021 GASKET, AIR HEATER 26106-080352 BOLT, M8 X 35 PLATED 26106-080802 BOLT, M8 X 80 PLATED 26106-080452 BOLT, M8 X 45 PLATED 129944-12110 INTAKE MANIFOLD...
& XHAUST INTAKE SYSTEM INTAKE MANIFOLD—YANMAR TIER III DIESEL REV30 8.4.15 TT4-8 4TNV98...
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& XHAUST INTAKE SYSTEM INTAKE MANIFOLD—YANMAR TIER III DIESEL Item Part Number Description 26106-080902 BOLT, M8 X 90 PLATED 26106-080402 BOLT, M8 X 40 PLATED 119129-77520 BEND 119129-77020 GASKET 119005-77051 AIR HEATER 121850-77021 GASKET, AIR HEATER 26216-060202 STUD, M6 X 20 PLATED 26106-080802 BOLT, M8 X 80 PLATED 129927-12100...
NVSP-05-005-CA SEALED KEY SWITCH, 3-POSITION SEALED KEYLESS SWITCH, 3-POSITION (OPTIONAL) NVSP-05-005-CB Eagle Tugs TT-series Quick Start Guide Powering up the tractor: Verify that the transmission is in “Park” or “Neutral.” Verify that the parking brake has been set. Turn the ignition switch to the “ON” position.
LECTRICAL SCHEMATICS VEHICLE LOGIC HARNESS—YANMAR TIER II DIESEL WITH SAUER DANFOSS CONTROLLER Note: Resistor not present on all S/N’s. TT4-8 4TNV98 REV30 8.4.15...
& E IGHTS LECTRICAL HEADLIGHT, TAIL LIGHT, SPOT LIGHT ASSEMBLY Item Part Number Description A-TT4-00291-6 HEADLIGHT W/ (OPTIONAL)TURN SIGNAL A-TT4-00291-5 REAR FACING SPOT LIGHT (OPTION) A-TT4-00292 TAILLIGHT TAILLIGHT ASSEMBLY Item Part Number Description 73-1912 TAIL LENS COVER 1157 REPLACEMENT BRAKE LIGHT BULB 1156 REPLACEMENT REVERSE LIGHT BULB HEADLIGHT &...
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& E IGHTS LECTRICAL HEADLIGHT AND TAIL LIGHT ASSEMBLIES REV30 8.4.15 TT4-8 4TNV98...
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& E IGHTS LECTRICAL HEADLIGHT AND TAIL LIGHT ASSEMBLIES Item Part Number Qty. Description HEADLIGHT AND TAILLIGHT ASSEMBLIES TT08-02-003-SA LED FRONT LIGHT POCKET, LH TT08-02-003-SB LED FRONT LIGHT POCKET, RH A-ES12-0492 LED HEADLIGHT, RECTANGLE LOCK WASHER, 5/16 (INCLUDED WITH ITEM 3) HEX NUT, 5/16-18 UNC (INCLUDED WITH ITEM 3) NVSP-34-006-CA LED AMBER TURN INDICATOR...
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& E IGHTS LECTRICAL HEADLIGHT ASSEMBLY Install specified components using Loctite®Threadlocker Blue 242® thread retaining compound or comparable. REV30 8.4.15 TT4-8 4TNV98...
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& E IGHTS LECTRICAL HEADLIGHT ASSEMBLY Item Part Number Qty. Description ET12-02-001-SA LH HEADLIGHT POCKET ET12-02-001-SB RH HEADLIGHT POCKET NVSP-34-007-CA HEADLIGHT, LED, SQUARE 500 LUMEN NVSP-34-006-CA LED AMBER TURN INDICATOR AE-OPT-0320-E SILICONE GROMMET, 3/8 SHCS, #8-32 UNC X .625, SS FLAT WASHER, #8 LOCK NUT, NYLON INSERT, #8-32 UNC, SS LOCK WASHER, 5/16 (PART OF ITEM 2)
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& E IGHTS LECTRICAL TAIL LIGHT ASSEMBLY Item Part Number Qty. Description A-RTT12E-00287 TAIL LIGHT GROMMET NVSP-34-010-CA OVAL COMBINATION LIGHT, S-T-T-BU TT4-8 4TNV98 REV30 8.4.15...
& T HEELS IRES WHEEL & TIRE ASSEMBLY Tire options: Item Part Number Description A-TT4-00121 TIRE, 8.00X16.5, LOAD RANGE E A-SATS-00121 TIRE, 8.75X16.5, LOAD RANGE E A-TT8/2-00121-1 TIRE, LT225/75R16, LOAD RANGE E A-TT8-00121 TIRE, LT225/75R16, LOAD RANGE E, MUD AND SNOW Wheel options (must match to tire mounting diameter): Item Part Number...
PTIONS OTHER OPTIONS LISTED NOT SHOWN AE-OPT-0001 BACK UP ALARM AE-OPT-0086 INTERCOM JACK AE-OPT-0094 12V ACCESSORY OUTLET AE-OPT-0200 DESERT PACKAGE-INCLUDING AE-OPT-0201 SY-KLONE PRE FILTER & X002351 DIESEL AIR FLOW SERVICE INDICATOR TT4-8 4TNV98 REV30 8.4.15...
AINTENANCE DAILY OPERATOR RESPONSIBILITIES Proper Fluid Checks Engine Oil Check engine oil with the unit on a level surface, the key in the “OFF” position, the shifter position in “PARK” and parking brake applied. Open side access door. Remove dipstick from crankcase, wipe it with a cloth. Insert it fully and take out it gently again.
AINTENANCE REVENTIVE AINTENANCE CHEDULE Preventive Maintenance Item Any items found to be deficient during the preventive maintenance re- view should be repaired or replaced. All fluids found low should be topped off. Perform daily pre-operation checklist (see Operations Manual) Engine Oil Change engine oil and replace filter Transmission Oil Change transmission fluid and replace filter...
AINTENANCE TT4-8 DIESEL SPECIFICATIONS & CAPACITIES MODEL # YANMAR 4TNV98 DESCRIPTION: Vertical In-line diesel, 3.3 Liter, four cylinder, direct injection engine # OF CYLINDERS 4 IN-LINE BORE & STROKE INCHES (mm) 3.858 X 4.331 in (98 X 112 mm) DISPLACEMENT, CUBIC INCHES (L) 202, 502 cu in (3.319L) COMPRESSION RATIO 171 (2.8)
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AINTENANCE TT4-8 DIESEL SPECIFICATIONS & CAPACITIES TRANSMISSION REFILL CAPACITIES ENGINE U.S. PINTS IMPERIAL PINTS LITRES 3.3 L DIESEL 8.00 6.60 3.80 * USE DEXTRON III TYPE TRANSMISSION FLUID OR EQUIVALENT **ADD 9 PINTS, 7.5 IMPERIAL PINTS OR 4.25 LITERS IF TORQUE CONVERTOR HAS BEEN DRAINED ENGINE COOLING SYSTEM REFILL CAPACITIES ENGINE U.S.
AINTENANCE YANMAR ENGINE TROUBLE SHOOTING SYMPTOM PROBABLE CAUSE ACTION Indicator Turns On-Engine Running Low engine Coolant Add engine coolant Dirty radiator fins Clean the radiator fins See authorized Yanmar Engine coolant leaking industrial engine dealer Engine Coolant or distributor Indicator V-belt loose or damaged Adjust V-belt or replace See authorized Yanmar...
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AINTENANCE YANMAR ENGINE TROUBLE SHOOTING SYMPTOM PROBABLE CAUSE ACTION Engine Does Not Start No diesel fuel Refuel and prime fuel system Air in fuel system Prime fuel system Replace with recommended Improper diesel fuel diesel fuel Starter motor operates Clogged fuel filter Replace fuel filter but engine does not start See authorized Yanmar...
AINTENANCE Recommended TT 4-12 Tool List 1) Screwdrivers a. Philips #1, #2 4” long b. Slotted 1/8 X 4, 3/16 X 4, 1/4 X 6, 5/16 X 8 2) Torx a. T25, T27, T30, T40 3) Nut Drivers a. 1/4”, 5/16”, 3/8” 4) Allen Wrench a.
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AINTENANCE 14) Swivel Universal 1/2, 3/8 Drives 15) Extension 3/8 Drive 3, 6, 10 inch 16) Extension ½ Drive 3, 6, 10 inch 17) OTC 7157 18) OTC 7080 19) OTC 1902 20) 12 volt test light 21) Torque Wrench 25-250 Foot Pounds 22) 7 inch diagonal pliers 23) 8 inch long nose pliers...
AINTENANCE FRONT END ALIGNMENT PROCEDURE Find center line of tire front and back Check with tape measure to see difference The front should be 1/16 inch more that the rear 1/16 inch toe out, if less or greater loosen the two bolts on the tie rod clamp Turn clamp in or out to achieve desired setting—1/16 in toe out Retighten two bolts on the tie rod clamp + 1/16 TOE OUT...
AINTENANCE DANA FRONT AXLE MAINTENANCE Dana 44 Front Axle Disassembly Procedure Please refer to the steps below for proper adjustment procedure. Note: Please refer to the attached picture of the Dana 44 axle for number reference. Disassembly Procedure: Step 1: Lift the tug so that both of the front tires are off the ground and make sure the unit is secured properly. Step 2: Remove both front wheels.
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AINTENANCE DANA FRONT AXLE MAINTENANCE Reassembly Procedure If the Backing Plate & Spindle Were Removed: Step 1: Install the backing plate with the chamfer facing the spindle. Note: Be sure the backing plate is aligned in the correct position as it was before it was removed. Step 2: Tighten the 6 new 3/8-24 stover lock nuts to 40ft lbs.
EVISION Date Description Appr. 16-May-2013 Revised aluminum radiator part number, revised transmission mount part number, added exhaust bracket part number. 10-Jun-2013 Revised exhaust system design. 29-Aug-2013 Replaced cab wiring schematic 24-Sep-2013 Revised 80A alternator part number and alternator excite wiring/installation 30-Oct-2013 Added key switch and key switch bracket part numbers 20-Nov-2013...