Yazoo/Kees ZKH52253, ZKH52223, ZKH61253, ZKHP52233, ZKHP52253 User Manual
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Operator’s Manual for
MODELS: ZKH52223
ZKH52253
ZKH61253
ZKHP52233
ZKHP52253
ZKHP61253
ZKW52233
ZKW61233
Professional Quality Lawn Care Equipment
since 1945
Thank you for buying a YAZOO/KEES ZT Max! Before operating your new mower, read, understand and follow the important safety instructions and the other instructions contained in this manual. Lawnmowers and all power equipment, can be potentially dangerous if used improperly. SAFETY REQUIRES GOOD JUDGEMENT, CAREFUL USE IN
ACCORDANCE WITH INSTRUCTIONS AND COMMON SENSE.
MANUAL 103413 REV.06 (10/10/00)
Congratulations on the purchase of your Yazoo/Kees mower. This manual has been prepared for the owners and operators of the ZT MAX™ 52" and 61" commercial mowers. Read, understand and follow the saftey and operating instructions.
! WARNING
Failure to follow cautious operating practices can result in serious injury to the operator or other persons. The owner must understand these instructions, and must allow only trained persons who understand these instructions to operate the mower. Each person operating the mower must be of sound mind and body and must not be under the influence of any mind altering substance.
If you have any questions pertaining to your mower contact your dealer.
!CAUTION
1.Keep all shields, guards and safety devices in place and in proper working condition.
2.Stop engine and remove spark plug wires or remove key before adjusting, servicing, or performing maintenance.
WARNING: Engine exhaust, some of it’s constituents, and certain vehicle componets contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
WARNING: Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.
Continuous dedication to improve our products require that specifications and design are subject to change without notice.
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TABLE OF CONTENTS |
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SAFETY: |
MAINTENANCE: |
1. Training |
1. Engine oil level |
2. Preparation |
2. Pump drive belt compartment |
3. Operation |
3. Mower blades |
4. Transportation |
4. Safety interlock system |
5. Maintenance |
5. Hardware |
SETUP AND ADJUSTMENTS: |
6. Air cleaner |
7. Engine oil |
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1. Park brake |
8. Hydraulic oil |
2. Cutting height |
9.Tire presure |
3. Mower deck leveling |
10. Battery |
4. Mule drive belt tension |
11. Belts |
5.Throttle lever tension |
12. Lubrication |
6. Reverse spring detent adjustment |
13. Fuel filter |
7. Motion control linkage adjustment |
14. Hydraulic filter and oil |
OPERATING INSTRUCTIONS: |
15. Caster swivel nuts |
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1. Controls |
SPECIFICATIONS: |
2. Starting and operation
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TROUBLE SHOOTING: |
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MOTION |
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CONTROL |
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LEVER |
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KEY SWITCH |
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DECK LIFT |
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THROTTLE |
KICK PLATE |
CHOKE |
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FOOT PLATE |
BATTERY |
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FUEL TANK |
PARK BRAKE
CONSOLE
BLADE
ENGAGEMENT
SWITCH
FUEL VALVE
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SAFETY 
TRAINING:
1.Read this manual carefully and question your dealer if something is not clear.
2.Be thoroughly familiar with the controls and proper use of the equipment.
3.Never allow children, teenagers, or people unfamiliar with these instructions to use the mower.
4.Do not mow while people, particularly children, or pets are nearby.
PREPARATION:
1.The use of personal protective equipment such as (but not limited to) protection for the eyes, ears, feet and head is recommended.
2.Never operate the mower without proper guards, covers, safety switches and devices in
place and properly functioning. Inspect these items daily for their condition and proper operation. If the condition or operation of any of these devices is questionable they must be replaced or repaired before using the mower.
3. Thoroughly inspect the area to be mowed and remove all stones, sticks, wire and other debris that may be thrown by the mower. Also note or mark other obstacles such as holes, stumps, etc..
4.Do not operate the mower when barefoot or wearing open shoes. Always wear substantial footwear and long pants.
5.Fill gas tank(s) before starting mower. DO NOT SMOKE near gasoline containers. Do not fill gas tank indoors or when engine is hot or running. Clean off any spilled gasoline before
starting the mower.
OPERATION:
1.Mow only in daylight or good artificial light.
2.Do not operate the mower in wet grass if possible.
3.Mow up and down slopes. Use extreme caution when mowing or turning on slopes.
Always turn to the downhill side. Do not mow excessively steep slopes ( mower may tip over and cause injury or death ).
4.Use caution when backing up.
5.Stop the blades when crossing surfaces other than grass; or when traveling to and from the area to be mowed.
6.Never operate the mower with defective, broken or excessively worn parts. Keep all guards, shields, and safety devices in place and in proper working order.
7.Do not change the engine governor settings or over speed the engine. Operating the engine at excessive speeds will increase the hazard of injury and can severely damage your machine.
8.Keep hands, feet and clothing away from rotating parts when operating mower.
9.Stop the blades and engine and set park brake before leaving the operators position for any reason.
10.Never make adjustments to the mower while engine and/or blades are running.
11.After striking a foreign object, stop mower and remove key. Inspect the mower for any
damage and repair it immediately before continuing to mow.
12.Never operate this equipment in an enclosed or confined area without proper ventilation of the engine exhaust.
13.Do not allow any passengers to ride on the mower. It is designed for the operator only. Keep others away from the mower when in operation.
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SAFETY 
14. Do not operate in an unsafe manner. Use caution when making maneuvers. Sharp cornering, turning & slopes can be unsafe if caution isn’t used.
TRANSPORTATION:
Use a heavy duty trailer to haul mower. Set park brake, turn off fuel valve and strap mower to trailer. NOTE: Park brake will not hold mower in place when transporting. Be sure to tie down the mower to the trailer. Always back onto the trailer to prevent possible tipover.
1.Keep all nuts, bolts and screws tight to keep mower in safe operating condition.
2.Engine maintenance should comply with engine manufactures specifications. See the engine manual for specifications.
3.Never store the mower with gas in the tank inside a building where fumes can reach an open flame or spark.
4.To reduce the risk of fire, keep the mower free of grass, leaves and excessive grease or
oil.
5.Have your mower inspected and serviced each year by an authorized Yazoo/Kees dealer.
6.Use only authentic Yazoo/Kees replacement parts to insure the safety and quality of your mower is maintained.
7.Safety decals should be replaced if they are missing or illegible. Decals can be purchased
from your Yazoo/Kees dealer.
8. The hydraulic system including all hoses and fittings should be checked frequently for wear or leaks. Never check for leaks with your hands, use a piece of cardboard or wood. Hydraulic oil under pressure could be injected into your body and must be surgically removed within a few hours.
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EQUIPMENT SETUP AND ADJUSTMENTS
1.Uncrate mower
2.Mount drive wheels using the four lug nuts installed on the hub.
3.Check tire pressure in all four tires. Pressure for all four tires is 15 psi
4.Remove the motion control levers and install on the outside of the control arms (See figure
1). Tabs on the motion control levers should be directed to the rear of the mower. Align the levers so they are even in the neutral position. (See figure 6)
5.Install seat rod to the seat frame with 5/16" hardware. Seat rod is located under the seat in
the hydraulic pump area. Attach the rod to the tab on the seat frame.
6.Check engine oil with dip stick. Add if needed per engine manufactures specifications.
(See Kohler engine manual or page 14 of this manual for Kohler engine specifications.)
Normally filled with Quaker State 10W30 and ran in at the factory.
7.See enclosed literature for proper installation, care and charging of battery.
8.Loosen the discharge chute slightly and lower into position. Chute should be snug but still pivot freely.
Figure 1
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ADJUSTMENTS
PARK BRAKE:
1.Stop engine and remove key. Release park brake and measure the length of the spring. The distance between the washers on each end of the spring should be 2-7/8" (See Fig 2 ).
2.If adjustment is needed, loosen the nut below the spring. Then rotate nut to desired
position so the proper distance between the washers is obtained. Check other side for proper adjustment.
3.Engage the brake lever and measure the distance between the trunnion pin and the collar welded to the brake rod. Distance should be 3/16" to 1/4" (See Fig 2 ).
4.If adjustment is needed, loosen the lock nut directly below the yoke. Using a wrench,
rotate the rod by turning the double nuts using the nuts below the yoke and the nut you just loosened, to obtain the 3/16" to 1/4" distance. Tighten nut against yoke and check other side for proper adjustment.
CUTTING HEIGHT:
1.Stop the mower and disengage the blades.
2.Raise the deck height lever to the transport position.
3.Remove the height adjustment pin and place it in the desired cutting height hole. Move
deck height lever down onto the pin and mow. NOTE: anti-scalp rollers must be in the proper position for maximum deck floatation. See the decal on the front deck.
MOWER DECK LEVELING:
1.Position mower on a flat surface and stop engine.
2.Check the tire pressure of all four tires. Inflation should be 15 psi.
3.Place two 2x4’s on edge under the cutting deck from front to rear and lower the deck down onto the 2x4’s.
4.Adjust the four upper chain bolts to the center of the slot in the deck lift arms. NOTE: make sure deck lift blocks are tightly bolted to the frame (See Fig 3).
5.Return the deck height lever to the transport position (5" cutting height) and check the center to center distance of the swivels. Distance should be 19-1/2"
6.Check the distance between the washers on the deck lift springs. Distance should be 11-3/4" (See Fig 3).
7.Check chains for equal tension. If unequal, adjust upper chain bolt in slot.
8.Place deck in the 5" cutting height and measure from the cutting edge of the blade to a flat surface to check deck cutting height.
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