Page 1
Form No. 3329–861 Z150 Z–Master with 44in SFS Side Discharge Mower Model No. 74164—Serial No. 240000001 & Up Operator’s Manual Original Instructions (EN) Register your product at www.Toro.com...
Authorized Service This product is capable of amputating hands and feet and Dealer or Toro Customer Service and have the model and throwing objects. Always follow all safety instructions to serial numbers of your product ready. Figure 1 illustrates avoid serious injury or death.
Use extra care when handling gasoline and other fuels. Use care when approaching blind corners, shrubs, trees, They are flammable and vapors are explosive. or other objects that may obscure vision. Use only an approved container Slope Operation Never remove gas cap or add fuel with engine running.
Wear protective clothing and use insulated tools. Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals. Use only Toro-approved attachments. Warranty may be voided if used with unapproved attachments.
Safety and Instruction Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. 1-633818 1-643401 1–653140 43-8480 1–653147 54-9220 1-523552...
Page 10
98-5954 98-4387 1. Warning—wear hearing protection. 66-1340 67-5360 99–3924 93-7818 1. Warning—read the Operator’s Manual for instructions on torquing the blade bolt/nut to 115–149 N m (85–110 ft–lb). 99-3943 98-3798 1. Engine...
Page 11
65–2690 103–0262 104-4163 1. Explosion hazard 4. Wear eye protection 2. No fire, open flames, or 5. Read the Operator’s smoking. Manual. 3. Caustic liquid/chemical 6. Keep bystanders a safe 103–2644 burn hazard distance from the battery. 104-8569 103-1997...
Page 12
104-4164 1. Contains lead; do not 4. No sparks, flame, or 6. Flush eyes immediately with 8. Minimum fill line discard. smoking water and get medical help 9. Instructions for activating the fast. 2. Recycle 5. Sulfuric acid can cause battery blindness or severe burns.
Gasoline and Oil Recommended Gasoline Warning Use UNLEADED Regular Gasoline suitable for automotive use (85 pump octane minimum). Leaded regular gasoline Gasoline is harmful or fatal if swallowed. may be used if unleaded regular is not available. Long-term exposure to vapors can cause serious injury and illness.
Operation Note: Determine the left and right sides of the machine from the normal operating position. Using the Rollover Protection System (ROPS) m–6836 Figure 2 Warning 1. Full down position 2. Down position with bagger installed To avoid injury or death from rollover: keep the roll bar in the raised locked position and use the seat belt.
7. Tighten the front handles against the center roll bar ends (Fig. 3). m–6897 Figure 4 1. Front handle Think Safety First m–6478 Figure 5 Please read all safety instructions and symbols in the safety 1. Safe Zone—use the 2. Use walk behind mower section.
Become familiar with all of the controls (Fig. 7) before you To use the right side fuel tank, rotate the fuel shut-off valve start the engine and operate the machine. 1/4 turn to the right from the off location. This uses fuel from the right side tank only.
4. Move the choke control to the On position before starting a cold engine. Note: A warm or hot engine may require choking. After the engine starts, move the choke control to the Off position. 5. Move the throttle control to the Fast position before starting a cold engine.
Stopping the Engine 1. Push the PTO to off (Fig. 14). 2. Move the throttle lever midway between the slow and fast positions (Fig. 14). 3. Let the engine idle for 60 seconds (Fig. 15). 4. Turn the ignition key to off (Fig. 15). 5.
Testing the Safety Interlock System 2. Move the levers to the center, unlocked position. 3. To go forward, slowly push the motion control levers Test the safety interlock system before you use the machine forward (Fig. 17). each time. If the safety system does not operate as described below, have an Authorized Service Dealer repair Note: The engine will kill if the traction control levers are the safety system immediately.
Adjusting the Outside Rollers Caution 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. Children or bystanders may be injured if they 2. Stop the engine, remove the key, and wait for all move or attempt to operate the tractor while it is moving parts to stop before leaving the operating unattended.
Pushing the Machine by Hand Important Always push the machine by hand. Never tow the machine because hydraulic damage may occur. Pushing the Machine 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. 2.
Operating with Side Discharge Warning The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. Driving on street or roadway without turn signals, lights, reflective markings, or a slow moving Danger vehicle emblem is dangerous and can lead to accidents causing personal injury.
Page 24
Warning Loading a unit onto a trailer or truck increases the possibility of backward tip–over and could cause serious injury or death. Use extreme caution when operating a unit on a ramp. Use only a single, full width ramp; DO NOT use individual ramps for each side of the unit.
This also helps disperse clippings which enhances damaged or worn, replace it immediately with a genuine decomposition and fertilization. Toro replacement blade. Mow at Correct Intervals Normally, mow every four days. But remember, grass grows at different rates at different times. So to maintain the same cutting height, which is a good practice, mow more often in early spring.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule Maintenance Service Maintenance Procedure Interval Check hydraulic fluid level After First 5 Hours Change hydraulic filter Check engine oil level Check safety system Each Use Clean engine air intake Clean mower housing...
File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine Toro replacement blade. For convenient sharpening and replacement, you may want to keep extra blades on hand.
2. Check the balance of the blade by putting it on a blade machine, use genuine Toro replacement blades. balancer (Fig. 29). If the blade stays in a horizontal Replacement blades made by other manufacturers may position, the blade is balanced and can be used.
m–1855 Figure 29 1. Blade 2. Balancer Installing the Blades 1. Install the blade onto the spindle shaft (Fig. 27). m–4815 Important The curved part of the blade must be Figure 30 pointing upward toward the inside of the mower to ensure 1.
Servicing the Engine Oil Change the oil: After the first 5 operating hours. After every 100 operating hours. Note: Change the oil more frequently when operating conditions are extremely dusty or sandy. Oil Type: Detergent oil (API service SG or SH) m–3219 Crankcase Capacity: w/filter, 67 oz.
Changing the Oil Filter 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating Replace the oil filter every 200 hours or every other oil position. change. 3. Pull the wire(s) off of the spark plug(s) (Fig. 34). Clean Note: Change the oil filter more frequently when operating around the spark plug(s) to prevent dirt from falling into conditions are extremely dusty or sandy.
Installing the Spark Plug Draining the Fuel Tank 1. Install the spark plug(s). Make sure that the air gap is set correctly. Danger 2. Tighten the spark plug(s) to 20 ft–lb (27 N m). In certain conditions, gasoline is extremely 3.
m–4088 Figure 37 1. Fuel shut-off valve 3. Hose clamp m–5616 2. Fuel filter 4. Fuel line Figure 39 1. Panel 3. Screws 2. Engine shroud Cleaning the Cooling Systems Greasing and Lubrication Cleaning the Engine Screen Lubricate the machine when shown on the Check Service Before each use, check and clean the engine screen.
5. Grease the fittings on the push arms (Fig. 41). m–5531 Figure 41 Where to Add Light Oil or Spray Lubrication Figure 40 Lubricate the machine in the following areas with spray type lubricant or light oil. Lubricate every 160 hours. Greasing the Front Caster Pivots Seat switch actuator Lubricate the front caster pivots once a year.
Checking the Tire Pressure 5. Run the machine at low idle for 15 minutes to allow any air to purge out of the system and warm the fluid. Refer to Starting and Stopping the Engine on page 18. Maintain the air pressure in the front and rear tires as specified.
Replacing the Hydraulic Filter Change the hydraulic filter: After the first 8 operating hours. After every 200 operating hours. Use summer filter above 32 F (0 C) Use winter filter below 32 F (0 C) 1. Disengage the PTO, move the motion control levers to m–1256 the neutral locked position and set the parking brake.
Checking the Hydraulic Lines 9. Apply slight rearward pressure on the motion control lever, turn the head of the adjustment bolt in the After every 100 operating hours, check hydraulic lines and appropriate direction until the control lever is centered hoses for leaks, loose fittings, kinked lines, loose mounting in neutral lock position (Fig.
Setting the Hydraulic Pump 3. Move motion control lever forward and reverse, then back to neutral. Wheel must stop turning or slightly Neutral creep in reverse. 4. Open throttle to fast. Make sure wheel remains stopped Note: Adjust handle neutral first. That has to be correct or slightly creeps in reverse, adjust if necessary.
6. Tighten the nuts at the ball joints (Fig. 47). Warning Electrical system will not perform proper safety shut off with jumper wire installed. Remove jumper wire from wire harness connector and plug connector into seat switch when adjustment is completed. Never operate this unit with jumper installed and seat switch bypassed.
Checking the Wheel Hub Leveling the Mower at Three Slotted Nut Positions Check after every 500 operating hours. Important There are only three measuring positions needed to level the mower. The slotted nut needs to be torqued to 125 ft–lb (170 N m). 1.
Page 41
9. Tighten the jam nut under the rear support arm and tighten the bolt securing the chain to the rear support arm. 10. Adjust the opposite side if needed. Adjusting the Front–to–Rear Mower Pitch 1. Position the right blade front-to-rear (Fig. 55). m–1078 2.
9. Tighten both swivel jam nuts against the front swivel to lock the height. 10. Check to make sure there is equal tension on the chains and adjust again if needed. Adjusting the Compression Spring 1. Raise the mower lift lever to the transport position (Fig.
3. Remove the belt covers over the outside spindles. 4. Loosen the outer nut on the spring eye bolt (Fig. 59). m–5531 Figure 60 Top View m–4197 Figure 59 1. Deck belt 4. Spring 2. Idler arm 5. Idler pulley Top View 3.
Servicing the Battery Danger Warning Battery electrolyte contains sulfuric acid which is a deadly poison and causes severe burns. CALIFORNIA Do not drink electrolyte and avoid contact with skin, eyes or clothing. Wear safety glasses to Proposition 65 Warning shield your eyes and robber gloves to protect Battery posts, terminals, and related accessories your hands.
Warning Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. Always Reconnect the positive (red) battery cable before reconnecting the negative (black) cable.
5. Wait five to ten minutes after filling the battery cells. Replacing the Grass Deflector Add distilled water, if necessary, until the electrolyte level is up to the upper line (Fig. 64) on the battery Warning case. 6. Reinstall battery vent caps. An uncovered discharge opening could allow the lawn mower to throw objects in the operator’s or Charging the Battery...
Return the switch to your Toro dealer if it is faulty and is being replaced or if the unit containing the switch is no longer operating and is being scrapped. If the switch is damaged or broken open use extreme caution in handling.
Cleaning and Storage A. Add a petroleum based stabilizer/conditioner to fuel in the tank. Follow mixing instructions from stabilizer manufacture. Do not use an alcohol 1. Disengage the power take off (PTO), set the parking based stabilizer (ethanol or methanol). brake and turn the ignition key to off.
Troubleshooting Problem Possible Causes Corrective Action Starter does not crank. 1. Blade control (PTO) is 1. Move blade control (PTO) to engaged. Disengaged. 2. Parking brake is not on. 2. Set parking brake. 3. Operator is not seated. 3. Sit on the seat. 4.
Page 52
Problem Possible Causes Corrective Action Machine does not drive. 1. Traction belt is worn, loose or 1. Contact Authorized Service broken. Dealer. 2. Traction belt is off pulley. 2. Contact Authorized Service Dealer. 3. Hydro fluid level low. 3. Add hydro fluid to reservoir. Abnormal vibration.
If for any reason you are dissatisfied with your Distributor’s service or have difficulty obtaining guarantee information, contact the Toro importer. If all other remedies fail, you may contact us at Toro Warranty Company.