LX266, LX277, LX277AWS, LX279 and LX288 IntroductionProduct IdentificationSafetyOperatingReplacement PartsService IntervalsService LubricationService EngineService TransmissionService Mower - Freedom42Replacing Mower Drive (Primary) Belt Checking for Bent Mower Blades Service Mower - 42C, 48C, 54CService ElectricalService MiscellaneousTroubleshootingStorageAssemblySpecificationsWarrantyJohn Deere Quality StatementService Record
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Service Mower - Freedom42Removing Mower1. Park machine safely. (See Parking Safely in the SAFETY section.) 2. Put lift lever in the transport position. 3. Turn mower height control knob to "0" position.
4. Lock the lift lever in forward position.
a. Grasp and hold tension rod (A) securely. b. Disengage rod from retaining bracket (B). c. Move rod as far as possible toward rear wheel to remove all belt tension. 6. Hold tension rod in the released position. Remove mower drive belt (C) from engine drive sheave. 7. Move tension rod to the latched position. 8. Pull out and push down on lever (D) to release front lift rod assembly. 9. Remove front lift rod assembly (E) from machine and mower deck. 10. Lift up on rear of mower using handle (F). Pull outward on J-pin (G) to disconnect draft arms. Repeat at other side. 11. Put lift lever in the transport position. 12. Slide mower deck out from under machine. Installing Mower
1. Park machine safely. (See Parking Safely in the SAFETY section.) 2. Put lift lever in the transport position. 3. Turn mower height control knob to "0" position.
5. Lock the lift lever in forward position. 6. Place lift arms (A) between mower lift brackets (B). 7. Make sure belt is routed to the inside of lift link (C). 8. Lift up on rear of mower using handle (D). Release J-pin (E) to connect mower deck to lift arms. Repeat at other side. 9. Hook front lift rod assembly (F) into mower bracket. 10. Place front lift rod (G) into frame hooks so lever (H) is at left side of machine. Make sure rod is seated in frame hooks. 11. Push up lever (H) until tab (I) locks into hole in frame.
12. Remove drive belt tension rod (J) from bracket (K) and pivot rod clockwise as far as possible. 13. Hold tension rod in the released position. Install mower drive belt (L) onto engine drive sheave.
14. Pivot the drive belt tension rod toward front of machine to tighten drive belt. Hook tension rod into bracket on mower. 15. Adjust the lift assist spring if necessary. 16. Adjust mower level front-to-rear and side-to-side. 17. Adjust mower wheels for desired cutting height. Adjusting Lift Assist SpringNOTE: The weight of the mower affects ease of lifting. Adjust the lift assist spring for your particular mower deck model. 1. Make sure yellow indicator (A) is aligned with the proper mark for the mower deck model installed. If not, adjust the lift assist spring so the indicator is aligned with the correct mower deck mark. 2. Turn adjusting bolt (B) at front of machine frame to adjust lift assist spring: · Clockwise - Increases spring tension and moves indicator toward front of machine for heavier mowers. · Counterclockwise - Decreases spring tension and moves indicator toward rear of machine for lighter mowers. Checking Mower Blade Timing
1. Park machine safely. (See Parking Safely in the SAFETY section). 3. Check condition of mower blades. Replace if damaged.
4. Make sure mower blades (A) are aligned perpendicular (90°) to each other. If not, adjust mower timing belt. Adjusting Mower Timing Belt1. Park machine safely. (See Parking Safely in the SAFETY section). 3. Remove drive belt from right spindle sheave (A).
5. Remove drive belt tension rod (C) from bracket and pivot rod clockwise as far as possible. 6. Hold tension rod in the released position and remove deck cover (D). Release tension rod slowly. 7. Check timing belt (E) for damage. · If belt is damaged, replace it. · If belt is not damaged, complete remaining steps to adjust belt. 8. Loosen center nut (F) on idler assembly. Do not remove the nut.
9. Make sure mower blades are aligned perpendicular (90°) to each other. 10. Rotate the spindle sprockets clockwise several turns and check belt is seated properly in sprockets and idlers. 11. Adjust timing belt tension: a. Loosen jam nut (G) and adjusting nut (H) so there is a small gap between washer (I) and spring bushing (J). b. Turn adjusting nut (H) clockwise until washer (I) makes solid contact with spring bushing (J). 12. Tighten center nut on idler assembly to 73 N·m (54 lb-ft). 13. Tighten jam nut against adjusting nut to 27 N·m (20 lb-ft). 14. Hold tension rod in the released position and install the deck cover over timing belt and right spindle. Release tension rod slowly. 15. Make sure deck cover is seated on shoulder of cover support spacers and secure with five nuts. 16. Install drive belt on right spindle sheave.
17. Pivot the drive belt tension rod counterclockwise and hook into bracket on mower. Replacing Mower Timing Belt1. Park machine safely. (See Parking Safely in the SAFETY section). 3. Remove drive belt from right spindle sheave (A).
5. Remove drive belt tension rod (C) from bracket and pivot rod clockwise as far as possible. 6. Hold tension rod in the released position and remove deck cover (D). Release tension rod slowly. 7. Turn jam nut (E) and adjusting nut (F) counterclockwise to end of threaded rod. Remove the tensioning spring assembly. 8. Remove center nut and washer (G) from the idler assembly. Remove idler assembly (H) from left support plate. Do not loosen the other idler assembly hardware. 9. Remove spacer (I) located between the idler assembly plates. Remove idler assembly (H) from timing belt. 10. Loosen belt guides (J) and rotate away from belt.
NOTE: The drain holes in sheave (L) and indentations in timing sprocket (M) are in alignment with the mower blades. 12. Position mower blades (N) perpendicular (90°) to each other. a. Route belt around right spindle sprocket (O) located under mower drive belt sheave. b. Route belt around outside of idlers (P). Pull a belt loop between the idlers and through idler assembly (H). c. Insert spacer (I) between idlers (P). d. Install idler assembly onto stud of left support plate. e. Wrap belt loop around spindle sprocket (Q). 14. Install washer and center nut (G) on idler assembly. Leave nut one turn loose. 15. Make sure mower blades are still positioned perpendicular (90°) to each other. 16. Install tensioning spring assembly and adjust timing belt: a. Align notch (R) of idler assembly with tab on spring bushing (S). b. Rotate adjusting nut (F) clockwise until washer (T) makes solid contact with spring bushing. c. Turn adjusting nut an additional 1/2 turn to allow for new belt stretch. Do not overtighten. d. Rotate right spindle sheave several turns clockwise and observe belt is seated properly in sprockets and idlers. e. Tighten jam nut (E) against adjusting nut. 17. Tighten center nut on idler assembly to 73 N·m (54 lb-ft). a. Hold a 1 mm (0.039 in.) thickness gauge between belt guides and sprocket rim at location (U). b. Rotate belt guides (J) against thickness gauge. c. Tighten belt guide nuts to 24 N·m (18 lb-ft). e. Rotate the spindle clockwise and make sure belt does not contact belt guides. Clearance between belt and guides must be 1 0.5 mm (0.039 0.020 in.). 19. Hold tension rod in the released position and install the deck cover over timing belt and right spindle. Release tension rod slowly. 20. Make sure deck cover is seated on shoulder of cover support spacers and secure with five nuts. 21. Install drive belt on right spindle.
22. Pivot the drive belt tension rod counterclockwise and hook into bracket on mower. Replacing Mower Drive (Primary) Belt1. Park machine safely. (See Parking Safely in the SAFETY section). 3. Loosen idler sheave (A) and tensioning sheave (B). 5. Clean belt with a clean cloth. 6. Inspect belt for wear or damage. Replace as necessary. 7. Install belt to mower so it is routed to the inside of belt guide (D). 8. Tighten idler sheave and tensioning sheave. Checking for Bent Mower Blades1. Park machine safely. (See Parking Safely in the SAFETY section). 2. Raise mower to transport position to access blades. 3. Measure distance between blade tip and flat ground surface. 4. Rotate blade 180° and measure other blade tip. 5. Install new blade if the difference between the two blade tip measurements is more than 3 mm (1/8 in.). Servicing Mower BladesRemoving Mower Blades1. Park machine safely. (See Parking Safely in the SAFETY section.) 2. Raise or remove mower deck. 3. Hold mower blade with glove to prevent blade from spinning. 4. Loosen and remove bolt with washer (A) and blade (B). 5. Inspect blade condition. Sharpen, balance, or replace blades as necessary. Installing Mower Blades1. Identify right and left sides of mower deck. Rear draft brackets (A) are marked "R" (right) and "L" (left). 2. Identify "RIGHT" and "LEFT" blades as marked on bottom side of each blade. 3. Position correct side mower blade (B) onto mower spindle with cutting edge towards the ground. Align key on bottom of spindle with slot in blade. 4. Make sure deflector cup (C) is seated properly between mower spindle and blade. 5. Locate directional arrows (D) on outside edges of mower deck. Make sure directional arrow on blade matches directional arrow on mower. 6. Install bolt with washer (E). Hand tighten bolt until blade makes complete contact with spindle. 7. Hold mower blade with glove to prevent blade from spinning. Tighten blade bolt to 62 N·m (46 lb-ft). 8. Check mower blade timing and adjust if necessary. Sharpening Blades
· Sharpen blades with grinder, hand file, or electric blade sharpener. · Keep original bevel (A) when grinding. · Blade should have 0.40 mm (1/64 in.) cutting edge (B) or less. · Balance blades before installing. Balancing Blades
2. Put blade on nail in a vise. Turn blade to horizontal position. 3. Check balance. If blade is not balanced, heavy end of blade will drop. |
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