John Deere FM2120 - Manuals

2 - SAFETY PRECAUTIONS Safety is the primary concern in the design and manufacture of our products.Unfortunately our efforts to provide safe equipment can be wiped out by a singlecareless act of an operator.In addition to the design and configuration of equipment, hazard control and accidentpreventi...

Fig. 2 - Safety decals, main frame; replace immediately if damaged. S AFETY P RECAUTIONS 8 FRONTIER F LEX W ING G ROOMING M OWERS O PERATOR ’ S M ANUAL right side left side 1 3 2 4 5 6 7 8 8 8 7 1 3 3 2 2 4 5 6 Yellow reflective decal Red reflective decal

19. Use extreme care and maintain minimum ground speed when transporting on hillside, over rough ground and when operating close to ditches or fences. Be carefulwhen turning sharp corners. 20. Reduce speed on slopes and sharp turns to minimize tipping or loss of control. Be careful when changing dir...

3.03 - Light Kit Installation The light kit comes standard and contains two lights, two brackets and wiring harness. To install the light kit do the following:1. Attach the light fixtures to the bracket using the supplied bolts M6x25 and nuts M6. Note: Be sure to route the wires through the large ho...

3.04 - Cutting Height Adjustment WARNING: Keep hands and feet away from moving blades.Be sure the tractor engine is off, parking brake is locked, and key is removedbefore making any adjustments.Never rely on the hydraulic system to hold the weight of the raised mowers.Never walk or work under the ra...

To attach the mower to the tractor do the following: 1. Remove transport brace if it is installed.2. Back the tractor up to the mower in order to slip the tractor drawbar hitch into the adjustable hitch bracket. The hitch bracket is adjustable in 3 different positions toconform to the tractor drawba...

7. Check the frame to ensure it is level 9 . 8. Engage the tractor PTO . It is very important to feather in the PTO . DANGER: Never engage the PTO until all three mowers are in the down position and resting on the ground. Never raise the mowers until all three deck bladeshave come to a complete stop...

The following are instructions to prevent the possibility of bottoming out the drivelineand causing damage to the tractor or the mower:1. Separate the two driveline halves. Connect the half with the CV joint to the tractor PTO and the other half to the mower input shaft. 2. Hook the tractor to the m...

cutting width of the machine. The free floating concept is indispensable when cuttingwith gang mowers. The three units are connected to the frame by a double pivot setup. The first pivot pointis at the overlapping pipes of the frame itself and the second in the telescopic armattaching the mowers to ...

the mower floats over the ground, the slots allow it to follow the ground contour withoutinterference (see fig. 9) . It is best to make leveling adjustments with the tractor and mower on flat ground. Lowerall three mowing decks ensuring the hydraulic pressure from the tractor is completelyreleased. ...

the rear position is up then the tractor hitch point is too low. If the front position is up andthe rear position is down then the tractor hitch point is too high. Before beginning work, ensure that all decks are level. Ensure the mower is adjusted byusing one of the six positions available (see fig...

and/or cross and bearings and can create a situation which endangers theoperator or bystanders. Before engaging the Flex mower, ensure that all twelve mower tires are firmly on theground. The two front wheels of the rear mower are locked into a non-swiveling positionto prevent sliding of the mower w...

6. Checking the condition of the blades. Worn or damaged blades should be changed before starting 13 . 7. Checking to ensure that the cutting edge is the leading edge of the blade. 8. Checking that there is no wire, weed, grass or other material wrapped around blades. 9. Checking to see if front wei...

In order to obtain the best cut possible, always keep the tractor to 540 rpm. Whenincreasing or decreasing mowing ground speed, always use gear selection, not enginespeed. This will maintain the constant maximum blade speed necessary for a clean cut. The mulching kit is an option available for our m...

8. Watch for holes, roots or other hidden objects. Do not use near the edge of a gully, ditch or stream bank. Anti-scalping rollers are mounted on each deck for uneven ground contours. Theroller rides the nose of the mower over a mound to help keep the nose frombulldozing or the blades from scalping...

13. When disconnecting hydraulic lines, shut off hydraulic supply and relieve all hydraulic pressure. 14. Do not attempt to mount a tire unless you have the proper equipment and experience to do the job. 15. Inflating or servicing tires can be dangerous. Whenever possible, trained personnel should b...

2. Gearbox oil level: Check gearboxes’ oil level, it should be between ½ and 2 / 3 full. If needed add either SAE 90 wt. or SAE 140 wt. gear oil. Every 25 hours:Check hardware tightness; mower vibration can loosen bolts 17 . Check tightness of the hardware periodically, using Table 1 as a guide. Eve...

2. Check belt tension 18 . 3. Grease the main drive shaft carrier bearing (see #1, fig. 15) . Every 250 hours or at least once a year: Hand pack with fresh grease the main carrier wheel bearings on the Flex frame (see #4 and #7, fig. 15) . 4.03 - Blade Maintenance WARNING: To avoid possible injury a...

In order for the mower to work properly, and to always obtain a precision cut with lowerHP requirements thus keeping cost down, proper blade maintenance is important.Blades must be kept sharp, at their original length and corners maintained. A blademust be replaced if, due to wear or damage, its ori...

Using non original parts can effect the quality of cut and may also cause damageto the mower. DANGER: Proper torque must be used when tightening the blade retaining bolt. Ifthese safety precautions are not followed, the blade could come off duringoperation and be thrown hundreds of feet from the mow...

Belt tension adjustment To adjust the tension do the following (see fig. 21) : 1. Remove belt shields. Clean foreign material from the mower deck and belt area.2. Loosen the four nuts holding the gearbox support plate to the central plate.3. Loosen the two blocking nuts on the adjustment bolt.4. Tur...

4.06 - Drivelines and Center Gearbox Timing DANGER: Only use the original drivelines supplied with this mower and alwayswith the safety shielding in place. Carefully read and file away the drivelineoperator’s manual supplied by the manufacturer. The following does notsubstitute the information found...

6. Reassemble the driveline halves. Raise and lower mowers again slowly to be sure drivelines do not bottom out in the shortest position. 7. Install both driveline safety chains. If for any reason, such as when lubricating driveline sections, the wing unitdrivelines are detached from the main center...

4.08 - Storage CAUTION: Following operation, or when unhooking, stop the tractor, set thebrakes, disengage the PTO, shut off the engine and remove the ignition key. Store the unit in an area away from human activity. Do not permit children to play on oraround the stored unit. Make sure all parked ma...

TABLE 1 - TORQUE SPECIFICATIONS When using lock washers with nuts, increase torque values by 5%. 3557 4823 2194 2974 978 1326 12 1-1/2” 2607 3535 1830 2482 1131 1534 4 M36 3161 4286 1949 2643 869 1179 6 1-1/2” 1659 2250 1180 1600 738 1000 2 M30 2712 3677 1673 2268 746 1011 12 1-3/8” 1499 2033 1047 1...

5 - REPAIR PROCEDURES CAUTION: All repair procedures must be done by authorized dealerships. It is notrecommended that untrained individuals perform any repair work. The following operations are detailed for qualified personnel only. 5.01 - Gearbox To remove the gearbox from decks do the following: ...

6 - TROUBLESHOOTING WARNING: Be sure tractor engine is off, parking brake is locked, and key isremoved before making any adjustments. Increase ground speed.Increase tractor rpm, check engineand PTO speeds. Ground speed too slow.Tractor rpm too low. Cut grasswindrows. Allow grass to dry.Maintain engi...

Use only original spare parts All rights reserved. It is unlawful to copy, reprint or use any of the information or details in this manualwithout the expressed written permission of the Company. Technical information provided in thismanual is approximate, the Company reserves the right to modify or ...