Page 3 - TABLE OF CONTENTS
Poly Bed 4 X 2 Drive System Customer Responsibilities ............................................................................................ 1Gear Lube ..................................................................................................................... 1Diagnosis: Confirming T...
Page 5 - CUSTOMER RESPONSIBILITIES; Initial change: 50 hours; check the gear lube; level, park the vehicle; Poly Bed 4 X 2 Drive System
Poly Bed 4 X 2 Drive System 1 ABOUT THIS SECTION: This section covers the drive system and transaxle used in the Big Country utility vehicle model series 414 (37AN414J710). This model is distinguished from the 420 and 430 series by a polymer bed and the use of a different drive system. The 420 and 4...
Page 6 - change the gear lube; Vent line
Poly Bed 4 X 2 Drive System 2 2.9. A blocked vent can provoke oil leaks. The vent is located at the top of the transaxle housing. See Figure 2.9. 2.10. To change the gear lube : Clean the area around the fill and drain plugs before removing either. 2.11. Place a drain pan under the transaxle. See Fi...
Page 7 - TRANSMISSION LINKAGES; The vacuum driven fuel pump is
Poly Bed 4 X 2 Drive System 3 3. DIAGNOSIS: CONFIRMING TRANSAXLE FAULT 3.1. Get as much information as possible from the customer regarding symptoms and circum-stances. 3.1. Inspect the vehicle for physical damage and clues regarding the nature and cause of failure. 3.2. Carefully operate the vehicl...
Page 8 - There is a lip at the front edge of the; Shift Control; Three nuts and bolts secure the shifter control to
Poly Bed 4 X 2 Drive System 4 4.5. There is a black plastic cover on the gearshift control. Slide it rearward, then lift it away from the gear shift control to expose the cable attach-ment. See Figure 4.5. NOTE: There is a lip at the front edge of the cover that will provide sufficient purchase to s...
Page 9 - Jam nuts
Poly Bed 4 X 2 Drive System 5 4.12. Within the housing for the shifter control there is a torsion spring that returns the shift lever to the center of its travel. There is not a detent mech-anism in the shifter control. See Figure 4.12. 4.13. On installation of the shifter control: • Position the bo...
Page 10 - Shift Control Adjustment; With the transmission confirmed to be in neutral
Poly Bed 4 X 2 Drive System 6 Shift Control Adjustment 4.20. To adjust the shift cable, use the neutral safety switch to confirm the neutral position. See Figure 4.20. • Connect a powered continuity light or an Ohm meter between the terminal on the neutral switch and a good ground. This test works k...
Page 11 - Differential Lock Control; If the Big Country vehicle exhibits symptoms
Poly Bed 4 X 2 Drive System 7 Differential Lock Control In normal operation, a differential allows the two rear wheels to rotate at different speeds. In a turning maneuver, the wheels toward the outside of the turn follow a path that describes a greater circumference than the wheels toward the insid...
Page 12 - Disconnect the differential lock control cable
Poly Bed 4 X 2 Drive System 8 4.34. If the linkage binds, disconnect the cable to iso- late the external portion of the linkage from inter-nal transaxle components. 4.35. Disconnect the differential lock control cable from the differential lock control lever: Pull the cable forward to get clearance ...
Page 13 - Tighten the cable bracket mounting bolts to a
Poly Bed 4 X 2 Drive System 9 4.40. Tighten the cable bracket mounting bolts to a torque of 78 in-lb. (8.8 N-m) on installation. 4.41. The cable is secured to a bracket near the front mounting point of the engine and transaxle cra-dle. See Figure 4.41. 4.42. The cable is secured by two jam nuts that...
Page 14 - Differential Lock Control Cable Adjustment; There is much more travel available to the cable
Poly Bed 4 X 2 Drive System 10 4.48. With the bracket removed, the fuel tank can be moved far enough back to allow the clevis pin to be removed. See Figure 4.48. 4.49. Apply anti-seize compound or white lithium grease to the portion of the pin that the differen-tial lock control lever pivots on when...
Page 15 - Transaxle
Poly Bed 4 X 2 Drive System 11 5. DIAGNOSIS AND SERVICE: DRIVE BELT AND CLUTCHES (CVT OR CONTINUOUSLY VARIABLE TRANSMISSION) 5.1. Performance problems such as lack of power or failure to reach full speed may be caused by: engine performance issues, dragging brakes, or belt/clutch issues. 5.2. Confir...
Page 16 - Inspection; assembly must be removed.
Poly Bed 4 X 2 Drive System 12 Inspection 5.3. Park the vehicle on a firm level surface, with the ignition turned off, and lift the load bed to provide access to the drive system. 5.4. Allow the exhaust system to cool before pro-ceeding. 5.5. Inspect the CVT system air filter. The filter is located ...
Page 17 - Exhaust pipe
Poly Bed 4 X 2 Drive System 13 5.12. Loosen the hose clamp that secures the molded hose from the air filter to the plenum. See Figure 5.12. 5.13. Remove the two bolts that hold the air filter housing to the air filter bracket using a 1/2” wrench, and remove the filter assembly. 5.14. The exhaust pip...
Page 18 - The distance between the centerline of the
Poly Bed 4 X 2 Drive System 14 5.19. Inspect the belt and clutches (pulleys) for obvi- ous damage and wear: See Figure 5.19. • The belt should measure at least.827” (21 mm) across the outside (wide) surface (service limit). If it measures less than this it is worn, and should be replaced. • New belt...
Page 19 - The throttle pedal arm should reach the end of
Poly Bed 4 X 2 Drive System 15 5.25. Confirm that the throttle cable, and the travel stops on the throttle cable are adjusted to pro-vide the full range of travel without straining the cable: 5.26. There should be roughly 3/16” (4.8 mm) of play at the eyelet that connects the throttle cable to the t...
Page 20 - The idle speed is controlled by the phillips head
Poly Bed 4 X 2 Drive System 16 5.29. Hold the throttle arm against the stop screw. Adjust the stop screw to set the engine speed to 1,100 RPM + 50. 5.30. Release the throttle arm, then set the governed idle speed to 1,200 RPM + 50. See Figure 5.30. 5.31. The idle speed is controlled by the phillips ...
Page 21 - CVT Removal: Belt and Pulleys
Poly Bed 4 X 2 Drive System 17 5.35. As the driving pulley compresses the belt, it is forced outward in the tapered sheave. NOTE: As the effective diameter of the driving pulley increases, the belt is drawn deeper into the sheave of the spring loaded driven pulley, reducing its effective diameter. T...
Page 22 - Use a strap wrench on the driving pulley.
Poly Bed 4 X 2 Drive System 18 5.44. If it is necessary to hold the crankshaft from turn- ing: choose one of three methods. See Figure 5.44. • Remove the spark plug using a 13/16” (21 mm) wrench. With the piston rising on the compres-sion stroke pack the cylinder with starter rope to act as a piston...
Page 23 - replace it as a complete unit.
Poly Bed 4 X 2 Drive System 19 5.50. After the belt is removed, the driven pulley can be removed: See Figure 5.50. • Take the bolt and washer that secure the pulley onto the transaxle input shaft completely off using a 12 mm wrench. • Slide the pulley off of the input shaft. It may be necessary to c...
Page 24 - The CVT housing connects the engine to the
Poly Bed 4 X 2 Drive System 20 5.57. Beyond the warranty period, if a dealer chooses to service a driven clutch, service information and specialized tools are available from: Hoffco/Comet Industries 358 NW F Street Richmond, IN 47374 5.58. The CVT housing connects the engine to the transaxle. It can...
Page 25 - CVT housing
Poly Bed 4 X 2 Drive System 21 6.6. Lift the bed. Remove the exhaust pipe and the CVT assembly, including the housing, as described in the CVT section of this manual. See Figure 6.6. 6.7. Index the forward-neutral-reverse shift arm on the transaxle to the splined shaft that it mounts to. Remove the ...
Page 26 - Clevis
Poly Bed 4 X 2 Drive System 22 6.13. Remove and discard the cotter pins securing the clevis pins into each brake cable clevis/actuator arm connection. Remove the clevis pins. See Figure 6.13. 6.14. Disconnect the red wire with white trace from the neutral switch, located on the rear surface of the u...
Page 27 - The cross member that the bracket for
Poly Bed 4 X 2 Drive System 23 6.19. Jackstands must be placed under the frame, not the engine/transaxle cradle. See Figure 6.19. NOTE: The cross member that the bracket for the dog-bone joint is attached to provides a con-venient place for jackstands. It is near the center of gravity: the entire ve...
Page 28 - TRANSAXLE INSTALLATION NOTES:
Poly Bed 4 X 2 Drive System 24 7. TRANSAXLE INSTALLATION NOTES: 7.1. Reverse the removal procedure to install the transaxle. The following items are tips, remind-ers, and torque specifications. 7.2. When mounting the transaxle to the cradle: • Roll the transaxle into position. • Attach it loosely to...
Page 29 - May be inaccessible with torque; Table 1: Drive System Torque Values; LINK ASSEMBLY; Link assembly
Poly Bed 4 X 2 Drive System 25 NOTE: 1 May be inaccessible with torque wrench. NOTE: 2 If locking feature on nut is worn, replace the nut or apply releasable thread-locking com-pound such as Loctite 242 (blue). NOTE: 3 Left-hand threads Table 1: Drive System Torque Values Item Torque Note cradle to ...
Page 30 - TRANSAXLE REPAIRS; It is possible to replace axle bearings
Poly Bed 4 X 2 Drive System 26 8.6. Remove the nut and bolt (top) that connect the link assembly to the frame using a pair of 15/16” wrenches. See Figure 8.6. 8.7. Remove the nut and bolt (bottom) that connect the link assembly to the engine and transaxle cradle using a pair of 19mm wrenches. 8.8. W...
Page 31 - This step is not strictly necessary,
Poly Bed 4 X 2 Drive System 27 9.5. After the wheels and brake drums are removed from the axle shafts, remove the brake shoes as described in the “Brakes” section of this manual. See Figure 9.5. 9.6. Remove the Brake backing plate assembly from the transaxle using a 17 mm wrench. See Figure 9.6. NOT...
Page 32 - Remove the screw that locates the differential
Poly Bed 4 X 2 Drive System 28 9.9. When placed on the bench, take note of the ori-entation of the transaxle components. Match marks will ease the assembly process but the following relationships are correct: • The brake backing plates attach with the lever and cam to the rear of the transaxle. • Th...
Page 34 - Technical Info. for the Curious
Poly Bed 4 X 2 Drive System 30 9.20. Remove the seal from the axle tube. See Figure 9.20. NOTE: The oil seal seats against a shoulder in the tube. Hook the seal removal tool under the lip of the seal to avoid scratching the bore that the seal fits in. 9.21. Technical Info. for the Curious : See Figu...
Page 35 - Transaxle housing and internals:; Input shaft
Poly Bed 4 X 2 Drive System 31 Transaxle housing and internals: 9.26. Prepare to separate the case: Clean any rust or burrs from the input shaft with emery cloth, and remove the spacer if it was not taken off previ-ously. See Figure 9.26. 9.27. Position the case so that it rests securely with the in...
Page 36 - Be certain to remove all of the cleaning solvent
Poly Bed 4 X 2 Drive System 32 9.31. Clean the left half of the housing, and inspect the three bearings that reside in it. See Figure 9.31. • The largest bearing supports the differential. It may be driven out of the housing from the out-side-in. • The nose of the input shaft rides in a sealed beari...
Page 37 - Thin washer Circlip
Poly Bed 4 X 2 Drive System 33 9.35. Lift the 51-tooth sprocket off of the reduction shaft along with the 19-tooth sprocket from the input shaft and the link-belt reverse chain. See Figure 9.35. 9.36. Remove the washers that are behind the sprock- ets on the input shaft and reduction shaft. See Figu...
Page 38 - Retract shift arm
Poly Bed 4 X 2 Drive System 34 9.40. Use a magnet to remove the pin that retains the shift lever. See Figure 9.40. 9.41. After the pin is removed, slide the shift arm into its bore to retract the pin from the groove in the shift collar. 9.42. When the pin is clear of the groove, lift the shift colla...
Page 39 - Input shaft seal
Poly Bed 4 X 2 Drive System 35 9.46. Like the input shaft, it will be necessary to clean any rust from the exterior part of the shift lever before it is removed. See Figure 9.46. 9.47. The shift lever can be removed through the inside of the housing. there is a roller on the pin that engages the shi...
Page 42 - Table 2: Transaxle Torque; Apply releasable thread-locking compound
Poly Bed 4 X 2 Drive System 38 Table 2: Transaxle Torque Note 1: Apply releasable thread-locking compound such as Loctite 242. Note 2: The cable attachment arm should be 90 degrees rearward from the shift arm within the tran-saxle. Note 3: Confirm proper return action from he torsion spring. Item To...
Page 43 - Some early-production versions of this; Poly Bed 4 X 2 Brake System
Poly Bed 4 X 2 Brake System 39 ABOUT THIS SECTION: This section covers brake service and adjustments on the “poly bed” Utility Vehicle 4 X 2 Model 414 (37AN414J710). 1. MAINTNANCE AND DESCRIPTION OF THE BRAKE SYSTEM: 1.1. It is important that the brakes on the Big Country vehicle be properly maintai...
Page 44 - Operational Test
Poly Bed 4 X 2 Brake System 40 1.5. Any significant wear, damage, or binding should be addressed prior to making an operational test. NOTE: the operational test should be performed in a safe location that is free of traffic, obstacles, and hazards. 1.6. If the operator has any specific brake perfor-...
Page 45 - It may be necessary to loosen the top
Poly Bed 4 X 2 Brake System 41 • Lift and safely support the back of the Big Coun-try vehicle. • Remove the rear lug nuts using a 19 mm socket, and lift off the rear wheels. • Release the parking brake, if applied. 2.4. Verify the correct orientation of the brake arm on the brake actuator cam: The c...
Page 46 - Brake actuator cam
Poly Bed 4 X 2 Brake System 42 2.12. To remove the brake shoes: pivot the shoes away from the backing plate. This will reduce the spring tension. 2.13. Using either a screwdriver or a brake adjusting spoon, step the shoes over the end of the cam. See Figure 2.13. 2.14. Inspect the bearings, seals, s...
Page 47 - Confirm that the shoes and springs are properly
Poly Bed 4 X 2 Brake System 43 2.18. Confirm that the shoes and springs are properly seated. See Figure 2.18. 2.19. Inspect the brake drums: See Figure 2.19. • The studs should not exhibit any damage. • The splines should be in good condition. • The friction surface should be clean. • The friction s...
Page 48 - Set the parking brake.
Poly Bed 4 X 2 Brake System 44 3.2. Adjust the nut and jam nut on the bolt that joins the clevis (pinned to the brake pedal arm) to the pivot pin that goes through the equalizer bracket. See Figure 3.2. 3.3. Place a bathroom scale between your foot and the brake pedal. Depress the brake pedal and se...
Page 49 - Confirm that the parking brake light illuminates
Poly Bed 4 X 2 Brake System 45 3.11. Confirm that the parking brake light illuminates on the instrument panel when the parking brake is applied, and goes out when the parking brake is released. See Figure 3.11. 3.12. If necessary the parking brake switch can be adjusted in its slotted mounting brack...
Page 51 - Tape Measure
4 X 2 Drive System - (Steel Bed) 47 ABOUT THIS SECTION: This section covers the drive system and transaxle used in the Big Country utility vehicle model series 420 and 430. There was also a low-volume series 410 that used the same transaxle without the differential lock feature. The information in t...
Page 52 - Remove the drain plug at the lower left corner of; Vent
4 X 2 Drive System - (Steel Bed) 48 2.10. A blocked vent can provoke oil leaks. The vent is located at the top of the transaxle housing. See Figure 2.10. 2.11. To change the gear lube : Clean the area around the fill and drain plugs before removing either. 2.12. Place a drain pan under the transaxle...
Page 53 - Connect at tachometer to the engine.
4 X 2 Drive System - (Steel Bed) 49 3.6. An extremely bad axle bearing can mimic a dragging brake. If the axle shaft does not run concentric to the axle tube that the brake is mounted to, the brake drum will rub on the shoes when the brakes are fully released. This will pro-duce sluggish vehicle res...
Page 54 - against
4 X 2 Drive System - (Steel Bed) 50 4.6. Start the engine and check idle speed. The engine should idle at 1,400 RPM + 150. Correct the idle speed if it is not in this range. If it is higher, the clutch will drag. 4.7. The idle speed is controlled by the amount of tension on the small spring on the g...
Page 55 - There should be no significant power transmitted; Belt; As the engine speed increases from idle speed; the pulley
4 X 2 Drive System - (Steel Bed) 51 4.13. At around 1,400 RPM the sheaves of the driving pulley should begin to close on the belt. See Figure 4.13. 4.14. There should be no significant power transmitted through the belt at idle speed. See Figure 4.14. Figure 4.13 Idle speed: driving pulleysheaves ar...
Page 57 - Installation notes for the driven CVT pulley CVT:; Ramp Surface of Cam; If working without an impact wrench, it; Plastic Plug
4 X 2 Drive System - (Steel Bed) 53 5.5. Key points to inspect on the driven pulley are the ramp surfaces on the cams, and the polymer buttons that ride against the ramps. See Figure 5.5. • A worn ramp surface on the cam will change the acceleration and power characteristics of the drive system. • A...
Page 58 - Remove the drive belt.; Drive Pulley
4 X 2 Drive System - (Steel Bed) 54 6.4. Remove the drive belt. 6.5. After the center bolt is loosened, remove the three screws that hold the cover onto the driving pulley. 6.6. Slide the cover off of the driving pulley. There is not enough clearance to remove the driving pul-ley with the cover in p...
Page 59 - Rear Shock; Place a drain pan under the transaxle and; Oil Drain Hole
4 X 2 Drive System - (Steel Bed) 55 7. TRANSAXLE REMOVAL AND REPLACE-MENT The transaxle is carried on the engine/transaxle cradle, and the entire cradle moves up and down with the travel of the suspension. It pivots on a dog-bone joint to allow for some degree of axial twist in relation to the rest ...
Page 61 - Jack Stands; Remove the previously loosened bolt that holds
4 X 2 Drive System - (Steel Bed) 57 7.21. Lift up on the bracket to remove it from the tran- saxle, complete with the actuator and the vac-uum reservoir (the black sphere mounted to the top of the bracket). It is not necessary to discon-nect the vacuum lines from the reservoir or the actuator. 7.22....
Page 62 - Torque Bracket
4 X 2 Drive System - (Steel Bed) 58 7.29. Remove the bolt that connects the front of the transaxle housing to the torque bracket on the engine/transaxle cradle using a 3/8” wrench and at 7/16” wrench. See Figure 7.29. 7.30. Loosen the mounting bolts that connect the tran- saxle to the mounting ears ...
Page 63 - Secure the clevis pins with new cotter pins.
4 X 2 Drive System - (Steel Bed) 59 8. TRANSAXLE INSTALLATION NOTES: 8.1. Reverse the removal procedure to install the transaxle. The following items are tips, remind-ers, and torque specifications. 8.2. When mounting the transaxle to the cradle, attach it loosely to the cradle using the four bolts ...
Page 67 - Remove the perimeter bolts that fasten the two; Magnet; Separate the differential lock housing from the; Differential Lock Dog
4 X 2 Drive System - (Steel Bed) 63 11.4. Remove the detent set screw using a straight- blade screwdriver. Retrieve the detent ball and spring from the detent screw bore using a mag-net. See Figure 11.4. 11.5. Position the housing differential lock side-up on 4x4 dimensional lumber, or a similar sup...
Page 74 - TRANSAXLE: AXLE TUBES; If brake drum has not already been removed; Gear Puller
4 X 2 Drive System - (Steel Bed) 70 13.13. If it is necessary to remove the bearing, use a bearing puller. See Figure 13.13. 14. TRANSAXLE: AXLE TUBES 14.1. If brake drum has not already been removed from the axle tube, perform the following steps: 14.2. Remove the brake drum. See Figure 14.2. NOTE:...
Page 75 - Axle Tube
4 X 2 Drive System - (Steel Bed) 71 14.4. Remove the brake shoes: • Release the small blue tension spring adjacent to the brake adjuster. • Remove the brake adjuster • Pry the tail of each torsion spring over the lip that it seats behind on the cast brake bracket. • Lift away the shoes and springs. ...
Page 76 - Chisel
4 X 2 Drive System - (Steel Bed) 72 14.10. Drill a small (1/8” or less) pilot hole into the out- side edge of the retaining ring. Drill most of the way through the ring, but do not drill into the axle shaft. Enlarge the hole with a 1/4” bit. See Figure 14.10. 14.11. Split the ring with a cold chisel...
Page 79 - Grid Screen; Remove the fuel pump bracket from the intake
4 X 2 Drive System - (Steel Bed) 75 15.6. Remove the three screws securing the grid screen to the grid screen holder using a 10 mm wrench. Remove the grid screen. See Figure 15.6. 15.7. Remove the two screws that hold the top of the fan cover to the engine using a 10 mm wrench. Install one or two of...
Page 80 - Valve Adjustment; raise the bed to provide access to the engine.
4 X 2 Drive System - (Steel Bed) 76 15.11. The fuel pump can be tested on the bench using a hand operated vacuum pump to confirm the initial tests. See Figure 15.11. 15.12. With the vent blocked, the diaphragm should be able to hold vacuum generated by the hand pump. See Figure 15.12. NOTE: Recommen...
Page 81 - “T” Mark; Rotate the crankshaft 270 degrees clockwise to
4 X 2 Drive System - (Steel Bed) 77 15.18. Rotate the engine crankshaft manually to locate top dead center (TDC) on the compression stroke for cylinder #1 (front cylinder). See Figure 15.18. • Rotating the crankshaft clockwise (seen from the fan side of the engine) will produce a puff of air from th...