- DL manuals
- Jacobsen
- Lawn Mower
- R-311T
- Technical/repair Manual
Jacobsen R-311T Technical/repair Manual
Summary of R-311T
Page 1
R-311t™ rotary mower technical/repair manual 69171.
Page 3: R-311T™
Warning: if incorrectly used this machine can cause severe injury. Those who use and maintain this machine should be trained in its proper use, warned of its dangers and should read the entire manual before attempting to set up, operate, adjust or service the machine. ! ©2010 jacobsen, a textron com...
Page 5: Foreword
4234520 first edition 3 foreword general this manual provides detailed information and procedures to safely repair and maintain the following: jacobsen r-311t rotary mowers and associated accessory attachments this manual is intended to introduce and guide the user through the latest factory-approve...
Page 6: How to Use This Manual
4 4234520 first edition foreword how to use this manual this manual is designed to provide multiple ways to locate and access repair information. Read each section in entirety before beginning a procedure. Proper understanding of machine operation and components is the key to successful diagnostics ...
Page 7: Table of Contents
10 9 2 3 4 5 6 7 8 table of contents 4234520 first edition 5 1 safety specifications and general information engine electrical hydrostatic power train hydraulics steering cutting units accessories and miscellaneous repair.
Page 9: Chapter 1
4234520 first edition 1-1 chapter 1 1 safety introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 prepare for the job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 10: Introduction
1-2 4234520 first edition safety 1 introduction safety is the most important element of any repair procedure. Knowledge of the procedure to be performed and safe work habits are essential to preventing death, personal injury, or property damage. Use the following statements as a common-sense guide t...
Page 11
Safety 4234520 first edition 1-3 1 figure 1-1 9 8 2 2 1 2 2 2 2 2 2 3 10 11 12 4 5 6 7 418 1865 tn9965, tn9966.
Page 12: Notice
1-4 4234520 first edition safety 1 refer to “safety & operation manual” for decal descriptions. 4181865 5 1 2 4181863 3 notice do not fold this rops if a canopy is attached. Damage to the mower hood could result. 4.
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Safety 4234520 first edition 1-5 1 refer to “safety & operation manual” for decal descriptions 4181862 4199140 7 9 8 4181861 6 4221181 4221180 4181864 10 11 12.
Page 14: Inspect Safety Labels
1-6 4234520 first edition safety 1 inspect safety labels safety decals are critical to the safe operation of the mower. Inspect the mower for any damaged, missing, or unreadable decals. Replace decals as needed before placing the mower back in service. Keep work area clean a clean, organized, well-l...
Page 15: Use Lifting Equipment Safely
Safety 4234520 first edition 1-7 1 use lifting equipment safely ! Warning • always use a lifting device with a lifting capacity greater than the weight of the item being lifted. • secure the load to the lifting device using cables, chains, or slings rated to handle the load being lifted. Fasteners b...
Page 16: Service Tires Safely
1-8 4234520 first edition safety 1 service tires safely ! Warning • always wear safety glasses or goggles. • use proper lifting methods when working with wheels and tires. • when working on an inflated tire, never position yourself directly over the work area. • when dismounting or mounting tires, u...
Page 17: Handle Chemical Products
Safety 4234520 first edition 1-9 1 handle chemical products safely ! Warning routine service often requires the use of various chemical products, including lubricants and cleaning solutions. Many of these chemicals are flammable and can pose health risks if not handled properly. • never mix chemical...
Page 18: Safely
1-10 4234520 first edition safety 1 service electrical components safely ! Warning • disconnect the battery negative (–) cable before removing or installing electrical components. Always connect the battery negative (–) cable last. • certain test and adjustment procedures must be performed with the ...
Page 19: Chapter 2
4234520 first edition 2-1 chapter 2 2 specifications and general information mower identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 serial number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 20: Mower Identification
2-2 4234520 first edition specifications and general information 2 mower identification see figures 2-1 through 2-3. Figure 2-1 figure 2-2 serial number an identification plate (1) listing the product number (2) and serial number (3) is attached to the frame of the mower and is located just ahead of...
Page 21: Component Location
Specifications and general information 4234520 first edition 2-3 2 component location see figures 2-4 and 2-5. ! Caution figure 2-4: component location—left side become familiar with operator controls, machine components, and correct operating procedures before beginning repair procedures. 1 seat 6 ...
Page 22
2-4 4234520 first edition specifications and general information 2 figure 2-5: component location—right side 1 rops 5 control valve 2 hydraulic oil tank 6 hood 3 rear wheel motor (2) 7 front differential 4 4wd valve 1 2 3 4 5 6 7 tn9963.
Page 23: Specifications
Specifications and general information 4234520 first edition 2-5 2 specifications quick reference specifications electrical hydrostatic power train test and adjustment specifications resistance across solenoid coil—front mow solenoid coil at 68° f ohms 7.1 ± 10% resistance across solenoid coil—right...
Page 24
2-6 4234520 first edition specifications and general information 2 hydraulics repair specifications front axle motor—backplate assembly screw torque lb-ft (n·m) 15–18 (20–24) front (drive) axle assembly—u-bolt nut torque lb-ft (n·m) 50 (67.8) front axle—ring gear screw torque lb-ft (n·m) 45–60 (61–8...
Page 25
Specifications and general information 4234520 first edition 2-7 2 steering cutting units accessories and miscellaneous test and adjustment specifications steering system leakage test—cylinder leakage pt (l) zero–nominal amount rear axle alignment toe-in measurement in. (mm) 0.0625 (1.6) rear axle s...
Page 26
2-8 4234520 first edition specifications and general information 2 mower speed transport—2wd mph (km/h) 0–14.9 (0–24) transport—4wd mph (km/h) 0–7.8 (0–12.5) mowing mph (km/h) 0–7.7 (0–12.4) reverse mph (km/h) 0–6 (0–9.6) brakes brake pedal adjusting nut torque lb-ft (n·m) 20 (27) rotor screw torque...
Page 27
Specifications and general information 4234520 first edition 2-9 2 weights and dimensions overall weight lb (kg) 4151 (1883) width of cut in. (mm) 134 (3404) overall width in. (mm) 139 (3531) overall height with rops in. (mm) 84 (2134) overall height with rops & canopy in. (mm) 92 (2337) overall len...
Page 28: Standard Torque Values
2-10 4234520 first edition specifications and general information 2 standard torque values inch fastener torque values metric fastener torque values notice note jacobsen uses grade 5 plated bolts as standard, unless otherwise noted. When tightening plated bolts, use the value given for lubricated. A...
Page 29: Chapter 3
4234520 first edition 3-1 chapter 3 3 engine specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 general engine specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 30: Specifications
3-2 4234520 first edition engine 3 specifications general engine specifications repair specifications engine manufacturer/model kubota ® tier 4i/v2403-m-t-e3b engine type 4-stroke, diesel fuel requirement no. 2-d low or ultra low sulfur diesel fuel (cetane rating-45) number of cylinders/configuratio...
Page 31: Component Location
Engine 4234520 first edition 3-3 3 component location kubota v2403-m-e3b see figures 3-1 and 3-2. Figure 3-1: component location—right side 1 engine oil cooler 5 starter motor 9 alternator 2 radiator/hydraulic oil cooler 6 engine temperature sensor 10 fan drive belt 3 thermostat 7 engine coolant tem...
Page 32
3-4 4234520 first edition engine 3 figure 3-2: component location—left side 1 return filter 4 engine oil fill cap 7 oil filter 10 fuel solenoid 2 charge filter 5 air filter 8 throttle cable 3 coolant bottle 6 radiator cap 9 fuel filter 1 2 3 4 5 6 7 8 9 10 tn9972.
Page 33: Checks and Adjustments
Engine 4234520 first edition 3-5 3 checks and adjustments throttle cable adjustment see figures 3-3 through 3-6. 1. Park the mower safely. (see “park mower safely” on page 1-6.) 2. Remove instrument panel. (see “instrument panel” on page 4-103.) figure 3-3 3. Remove three screws (1), lock washers (2...
Page 34
3-6 4234520 first edition engine 3 purging the fuel system adjustment see figure 3-7. ! Caution note whenever the fuel filter or fuel lines are removed, the fuel tank is completely emptied, or the engine has not been used for an extended time, purge the system of air. 1. Park the mower safely. (see ...
Page 35: Repair
Engine 4234520 first edition 3-7 3 repair fan belt removal and installation see figures 3-8 and 3-9. Note inspect and adjust the new engine belt after the first 50 hours of operation. Check and adjust annually thereafter. 1. Park the mower safely. (see “park mower safely” on page 1-6.) 2. Raise the ...
Page 36
3-8 4234520 first edition engine 3 air cleaner assembly removal and installation see figures 3-10 and 3-11. ! Caution notes • the air cleaner on this engine is a dry type; never apply oil to it. 1. Park the mower safely. (see “park mower safely” on page 1-6.) figure 3-10 2. Release the spring clips ...
Page 37
Engine 4234520 first edition 3-9 3 muffler removal, inspection, and installation see figure 3-12.. ! Caution 1. Park the mower safely. (see “park mower safely” on page 1-6.) 2. Allow the engine to cool completely. 3. Raise the hood. Figure 3-12 4. Remove the muffler clamp and hardware (2) from the e...
Page 38
3-10 4234520 first edition engine 3 radiator/oil coolers removal and installation see figures 3-13. Figure 3-13 1 upper radiator hose 9 radiator 17 draincock 26 adapter 2 hose clamp (4) 10 oil cooler mounting tie (4) 18 screw (2) 27 o-ring 3 screw (2) 11 flat washer (4) 19 air cleaner support 28 eng...
Page 39
Engine 4234520 first edition 3-11 3 1. Park the mower safely. (see “park mower safely” on page 1-6.) 2. Lower mowing decks to ground. 3. Allow the engine to cool completely. 4. Raise the hood. Engine oil cooler removal see figure 3-14. Notes • label all hoses before removing to ensure correct instal...
Page 40
3-12 4234520 first edition engine 3 figure 3-16 8. Loosen two clamps (9) and remove upper radiator hose (10). 9. Loosen two clamps (11) and remove lower radiator hose (12). 10. While supporting the radiator, remove four flat washers (13), lock washers (14), and nuts (15). 11. Move fan shroud (16) ba...
Page 41
Engine 4234520 first edition 3-13 3 throttle cable and control lever removal and installation see figures 3-18 through 3-21. 1. Park the mower safely. (see “park mower safely” on page 1-6.) 2. Remove the instrument panel. (see “instrument panel” on page 4-103.) figure 3-18 3. Remove three screws (1)...
Page 42
3-14 4234520 first edition engine 3 fuel filter removal and installation see figures 3-22 and 3-23. ! Caution 1. Park the mower safely. (see “park mower safely” on page 1-6.) 2. Allow the engine to cool completely before servicing. 3. Disconnect the battery negative (–) cable at the battery. Figure ...
Page 43
Engine 4234520 first edition 3-15 3 fuel pump removal and installation see figure 3-24. ! Caution 1. Park the mower safely. (see “park mower safely” on page 1-6.) 2. Disconnect the battery negative (–) cable at the battery. 3. Turn the fuel outlet hose shutoff valve clockwise until valve bottoms lig...
Page 44
3-16 4234520 first edition engine 3 10. Disconnect and remove fuel hose (2) from outlet of fuel filter and from injection pump. Clean up any spilled fuel. 11. Remove two nuts (7), two lock washers (6), four washers (5), and two screws (4) to remove fuel filter assembly. Figure 3-26 12. Remove nut (1...
Page 45
Engine 4234520 first edition 3-17 3 figure 3-27 14. Loosen clamps (17) and remove air intake hose (19) and turbo intake hose (18). Cover the turbo air intake opening. 15. Loosen clamp (20) and disconnect breather hose (21). 16. Disconnect engine to oil filter head hose (22), and engine oil cooler to...
Page 46
3-18 4234520 first edition engine 3 ! Warning figure 3-29 20. Using an engine hoist, support the engine (33) and remove the four engine mounting bolts (31) flat washers (32), isolator washers (34), lock washers (35), and nuts (36). 21. Check for any connected wires and components and carefully remov...
Page 47
Engine 4234520 first edition 3-19 3 22. Place the engine on a suitable stand or workbench that will support the full weight in a safe manner while preventing damage to the engine. Note if the engine is being replaced, some components must be removed and installed on the new engine. See the “parts & ...
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3-20 4234520 first edition engine 3 page intentionally blank.