Page 3 - TABLE OF CONTENTS
TABLE OF CONTENTS Deck Leveling.................................................................................................... 1 Deck Removal ................................................................................................... 2 Deck Belt Removal ....................................
Page 5 - Z Force
1 1. DECK LEVELING 1.1. Park the mower on a flat paved surface, engage the parking brake, shut off engine, remove the key from ignition switch, disconnect the spark plug wires. 1.2. Check front tire pressure. Adjust as necessary to 20-25 psi. 1.3. Check rear Drive tire pressure. Adjust as neces-sary...
Page 6 - pitch adjustment; Lynch pin
Z Force 2 1.10. To do fore and aft pitch adjustment , align the blades front to back. See Figure 1.10. 1.11. Measure blade height distance of the rear tip of either outer blade. 1.12. Measure the blade height of the front tip of the center blade. NOTE: The blade height of the rear tips should be 1/8...
Page 7 - DECK BELT REMOVAL; Before doing any work to the deck, it; SPINDLE REMOVAL; Tilt top of cart until securely locks in place.
Z Force 3 2.10. Remove both front lift rods. 2.11. Pull the J-pins outward to release rear deck lift hangers. Rotate the J-pins to lock them in the out position 2.12. Raise lift. Confirm that none of the belts or link- ages will interfere with removal of the cutting deck. 2.13. Pull cart from under ...
Page 8 - SPINDLE
Z Force 4 4.5. Remove the spindle shaft and pulley from the spindle housing. See Figure 4.5. NOTE: If the spindle is to be removed from the deck, rather than serviced in-situ, the pulley and shaft must be removed before the spindle hous-ing can be removed from the deck. 4.6. Using a 1/2” socket and ...
Page 9 - TRACKING AND NEUTRAL ADJUSTMENT
Z Force 5 5.6. Clean and inspect all of the components. Replace any that exhibit wear or damage. Eval-uate the feasibility of repair versus complete spindle replacement. 5.7. If a roller bearing is damaged, drive the bearing race out of the housing and replace it as well. Do not over-look the bearin...
Page 10 - IHT release rod
Z Force 6 6.5. Check the IHT (Integrated Hydrostatic transmis-sion) release the levers to be sure the transmis-sions are fully engaged. See Figure 6.5. 6.6. Check steering linkage for wear and damage. i.e.; loose ball joint ends, worn bellcrank bush-ings, and loose or bent hardware. 6.7. Replace any...
Page 11 - adjust tracking
Z Force 7 6.16. To adjust the return-to-neutral mechanism, loosen the socket head cap screw that locks the indexing plate on the return-to-neutral mecha-nism in position using a 1/4” allen wrench. It should be possible to move the indexing plate with light effort. See Figure 6.16. 6.17. Temporarily ...
Page 12 - set the; Control quadrant
Z Force 8 6.27. Clamp the fingers on the return-to-neutral mech- anism so that they hold the tab on the control quadrant to the tab on the indexing plate. See Figure 6.27. NOTE: This will effectively lock the return-to- neutral mechanism positively into neutral. 6.28. Rotate the steering link rod to...
Page 13 - LAP BAR
Z Force 9 NOTE: Fill the IHT and check the fluid level through the vent port at the top off the housing. NOTE: The IHT may be spun with a drill motor and purged prior to installation, or they may be purged after installation. NOTE: To purge : • With the engine running and the by-pass valve open (rel...
Page 14 - BRAKES; return springs
Z Force 10 8. BRAKES NOTE: While the mower is in motion, all braking is performed dynamically through the hydraulic pumps and traction motors within the IHTs. This is controlled by the lap bars. When parked, with the engine off, the hydraulic system locks the drive wheels. 8.1. To push the unit, you...
Page 15 - Adjustment point; Brake pawl
Z Force 11 8.7. Check the brake lever mounting hardware. See Figure 8.7. 8.8. Prior to adjustment, check the brake pawls and rotors. See Figure 8.8. • The teeth on the pawls and rotors should not be worn, chipped or rounded. • Both ends of the brake shaft on each transmis-sion are splined. The brake...
Page 16 - REVERSE CUT-OUT SWITCH ADJUSTMENT; Left side brake rotor:
Z Force 12 8.14. Move the parking brake lever to the OFF posi- tion. There should be roughly 1/16” clearance between the lowest tooth on each brake pawl and the nearest tooth on the rotor. See Figure 8.14. 8.15. If brake adjustment is necessary, loosen the jam nuts that hold the threaded end of the ...
Page 17 - Switch adjustment range
Z Force 13 9.3. To adjust the reverse switch bracket, loosen the machine screws that hold the reverse switch bracket to the control housing using a 5/16” wrench. See Figure 9.3. NOTE: There is one screw on each switch that is accessible from outside the control console, and one that cannot be reache...
Page 18 - Test the operation of the mower and reverse; ELECTRICAL SYSTEM COMPONENTS; The Seat Safety Switch is located in the seat
Z Force 14 9.11. Test the operation of the mower and reverse safety circuits in a safe area before returning the unit to service. With the engine running, and the PTO switch turned on: • The blades should turn when both lap bars are in the forward position. • The blades should turn when one lap bar ...
Page 19 - Start position notch
Z Force 15 10.2. The Parking Brake Switch is located on the right side of the control housing. It is accessible by removing the right side control console. The switch is actuated by a retainer spring that moves with the parking brake lever. See Figure 10.2. 10.3. The parking brake lever must be move...
Page 20 - The reverse safety switches are located on the
Z Force 16 10.7. Each park switch contains two sets of contacts. One set of contacts in normal closed (N.C.). The other set of contacts is normally open (N.O.). • The orange wires (one with black trace on the right side, one with a white trace on the left side) are in the starter inhibit circuit. Th...
Page 21 - The key switch is located in the right side control
Z Force 17 • Terminal A: Yellow wire with black trace from relay #1, terminal E. When relay #2 is ener-gized, Terminal A has contact with Terminal E. Terminal A has contact with terminal C when relay #2 is not energized. • Terminal B: 2 black wires. Power is provided to the windings through the seat...
Page 22 - The PTO switch is located just behind the key
Z Force 18 10.15. The PTO switch is located just behind the key switch. • Terminal A (Common) to G: Orange wire with white trace leads to parking brake switch from terminal A. The N.O. contacts in the parking brake close when the parking brake is applied, completing the path to trigger the solenoid....
Page 23 - System voltage; DECK LIFT SHAFT ASSEMBLY
Z Force 19 10.19. Checking the out-put from the regulator / recti- fier, by probing the red wire with the red lead of a DVOM set to read D.C. voltage while grounding the black DVOM lead will show a reading of sys-tem voltage. See Figure 10.19. 10.20. To get a true reading of regulated rectified D.C....
Page 24 - Bushings
Z Force 20 11.3. Take note of or mark the orientation of the steer- ing bellcrank assemblies. See Figure 11.3. NOTE: The long arm of each bellcrank connects to the link leading to the hydro. The short arm on each bellcrank connects to the steering input shaft assembly. NOTE: There are different part...
Page 27 - STEERING INPUT SHAFT ASSEMBLY
Z Force 23 11.26. Note the orientation of the lift links, and pivot them to remove them from the arms on the lift shaft assembly. The slotted hole goes up. The adjustment nuts on the right side link face the inside of the machine. See Figure 11.26. 11.27. Pivot the lift links to free them from the T...
Page 29 - PIVOT BAR; Axle
Z Force 25 13. PIVOT BAR 13.1. Lift and safely support the Z-Force by the frame in front of the deck. See Figure 13.1. 13.2. Wheel removal can be done with two 3/4” wrenches. Remove the nut and withdraw the axle bolt. 13.3. There is a spacer that fits over each side of the wheel bearing, keeping the...
Page 30 - Grease zirch
Z Force 26 13.7. The bushings can be driven out and replaced if necessary. See Figure 13.7. 13.8. The pivot bolt can be removed using a pair of 1 1/2” wrenches. See Figure 13.8. NOTE: On installation, tighten the pivot bar nut and bolt until front-back play is gone from the pivot bar, but not so tig...
Page 31 - Latches
Z Force 27 14. ENGINE ADJUSTMENTS (KAWASAKI FH451V) 14.1. The air filter cover is easily removed by releas- ing the cam action latches at each side of the cover. A wing nut holds the air filter element in place. See Figure 14.1. NOTE: It is not necessary to remove the air filter for many carburetor ...
Page 33 - Valve covers; valve lash; Locks crews
Z Force 29 14.13. Turn the engine off, and confirm correct choke adjustment. Remove the air filter cover and air filter to confirm that the choke plate is fully closed when the choke is applied, and fully open at the full-throttle position. See Figure 14.13. 14.14. The valve lash should be checked a...
Page 34 - prior to installation.; Spark plugs; : SAE30 will be suitable for most
Z Force 30 14.28. Inspect and gap (or replace) the spark plugs prior to installation. 14.29. Spark plugs : Champion RC8Y or equivalent, gapped to .030” (.75mm). 14.30. Oil capacity : 1.6 U.S. qts. (1.5L) without filter replacement. Use 1.8 U.S. qts. (1.7L) with filter replacement. 14.31. Oil type : ...