Havener Enterprises BRADLEY MOWERS 36 User manual

Sep. 10th 2023
Hydro Drive Walk Behind
Commercial Mower
36"·48"·52"
www.BradleyMowers.com

Bradley Hydro Drive Walk Behind Mower Owner's Manual
2
About This Manual ....................................................................................................................................... 3
Warranty Statement ..................................................................................................................................... 4
Safety Information ........................................................................................................................................ 5
Before Using Equipment .............................................................................................................................. 5
Operating of Equipment ............................................................................................................................... 6
Operating the Mower ....................................................................................................................................7
Turning the Engine............................................................................................................................... .... 8
Moving the Mower ........................................................................................................................................ 9
Height-of-cut ...............................................................................................................................................10
Cutting height-of-cut ............................................................................................................................... 10
Measuring the height-of-cut ................................................................................................................... 10
Removing and Adjusting the Blades ...................................................................................................... 10
Adjusting the Front Wheels ...................................................................................................................11
General Maintenance ............................................................................................................................. 12
Maintenance Schedule ...........................................................................................................................12
Fuel ........................................................................................................................................................... 13
Engine Oil ................................................................................................................................................... 13
Air Filter ...................................................................................................................................................... 13
Tire Pressure .............................................................................................................................................. 13
Blades .........................................................................................................................................................13
Cleaning the Mower ................................................................................................................................... 13
Lubrication Points .......................................................................................................................................14
Service Adjustments .................................................................................................................................15
Engine to Blade Belt Adjustment For 36" .................................................................................................. 15
Engine to Blade Belt Adjustment For 48"And52"Mower ........................................................................... 16
Blade to Blade Belt Adjustment For 48"And52"Mower ............................................................................. 16
Enging to Transmission Belt Adjustment ................................................................................................... 17
Troubleshooting ..........................................................................................................................................18
Uncrating instruction...........................................................................................................................19-21
Rear Deck Assembly...........................................................................................................................22-23
Frame Assembly................................................................................................................................... 24-27
Front Deck Assembly............................................................................................................................28-34
Transmission Driver Assembly ............................................................................................................. 35-36
Brake And Wheel Assembly ................................................................................................................. 37-39
Handle Control Assembly .................................................................................................................. ...40-42
Front Caster Assembly ......................................................................................................................... 43-44
Fuel Tank Assembly ................................................................................................................................... 45
Safety Information Decals ..........................................................................................................................46
Electrical Diagram ...................................................................................................................................47
Product Registration................................................................................................................................49
TABLE OF CONTENTS

Bradley Hydro Drive Walk Behind Mower Owner's Manual
3
ABOUT THIS MANUAL
Congratulations on the purchase of your new Bradley commercial mower. We at Havener Enterprises,
Inc. are confident that this mower will provide you with years of excellent performance, durability, and
trouble-free service when operated and maintained as directed in this manual.
This owner's manual is considered a permanent part of the mower. It must be available to all of the
operators and/or person(s) servicing the mower. Should the mower be resold, this manual must remain
with the mower.
All information, illustrations, and specifications contained in this manual were in effect at the time of
publication. Havener Enterprises, Inc. reserves the right to change, modify, and/or discontinue
specifications and/or design without notice. If there is a change that has been made to your mower
which is not shown or reflected in this manual, please see your authorized Bradley dealer before
operating and/or servicing the equipment.
Should you ever have any questions regarding the operation, maintenance, or safety of your mower,
please contact your authorized Bradley dealer who has been specially trained on operation and service
of Bradley Commercial Lawn Mowers.
A space has been provided below to record information about your new Bradley Commercial Lawn
Mower. Please take time to record such information for future reference, especially when you contact
an Authorized Bradley dealer with questions.
Date Purchased:
Model Number:
Serial Number:
Place of Purchase:

Bradley Hydro Drive Walk Behind Mower Owner's Manual
4
WARRANTY STATEMENT
The mowers are warranted for two (2) years from the original date of purchase against defects in material or
workmanship, when operated and maintained in accordance with the mowers Owner’s Manual. Commercial
operators: first year is parts and labor; second year is parts only. Residential operators: first two years parts
and labor; third year parts only.
The engine, transmission, and battery are warranted by their respective manufacturers. Havener Enterprises,
Inc. (Havener) will replace or repair, free of charge, any part of the original equipment returned to us or our
authorized servicing representative with transportation or postage prepaid and which upon examination shall
be defective. The cost of replacing items that are subject to normal wear, such as but not limited to: air filters,
belts, blades, oil filters, and tires, will be borne by the purchaser/owner unless such wear was caused by a
defect in material and workmanship.
This warranty does not cover any mower that has been subject to neglect, negligence, misuse, or accident,
or that has been operated in any way contrary to the operating instructions as specified in the Owner’s
Manual. This warranty does not cover any mower that has been altered or modified changing performance or
durability. In addition, the warranty is not extended to repairs made necessary by the use of parts or
accessories which, in the reasonable judgment of the mowers are compatible with the mower or adversely
affect its operation, performance, or durability. This warranty is not transferrable.
Havener assumes no responsibility or incidental, consequential, or other damages including, but not limited
to: expense for gasoline, expense of delivering the mower to a the mower authorized dealer and expense of
returning it to the owner, mechanic’s travel time, telephone or communication charges, rental of a like product
during the time warranty repairs are being performed, travel, loss or damage to personal property, loss of
revenue, loss of the use of the time or inconvenience. There are no other expressed or implied warranties
and liability for consequential damages under this warranty and are excluded to the extent exclusions are
permitted by law. No warranty service will be authorized until your registration card has been received by the
manufacturer.

Bradley Hydro Drive Walk Behind Mower Owner's Manual
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SAFETY INFORMATION
Read This Manual Carefully and Thoroughly Before Operating Your Mower!
1. Carefully and thoroughly read the owner's manual. Allow adequate time to fully understand the controls
and operation of the equipment. Never allow anyone to operate the mower that has not read and fully
understood the owner's manual.
2. Never allow anyone to operate the mower who is not old enough, large enough, and strong enough to
safely handle the machine.
3. Do not carry passengers. Avoid mowing while people, especially children, and pets, are nearby since
rotating blades can throw rocks and other items with enough force to cause serious injury.
BEFORE USING EQUIPMENT
OPERATOR
Wear protective clothing while mowing. Long trousers and safety glasses will help reduce the risk of injury
from thrown objects. It is recommended that steel toe shoes with aggressive soles or some other type of
substantial footwear be worn to help protect your feet and maintain traction on slopes or uneven ground.
MOWING AREA
Thoroughly inspect the area where the equipment is to be used. Look for items such as stones, sticks, bones,
wire, and other foreign objects. When struck by the mower, these and other objects may become projectiles
that could lead to serious injury and/or death.
MOWER
For your safety and the long life of your mower, always inspect the mower before each use. Before inspection,
make sure the mower is on a flat and level surface, the blades are disengaged, the ignition switch off with the
key removed, and the spark plug wire is off of the spark plug(s) and hidden so that accidental contact cannot
be made.
GENERAL CONDITION
Walk around the mower looking for any fluid spills or leaks on or underneath the mower.
Remove any and all excessive debris, dirt, and/or fluids.
Look for signs of damage or excessive wear. Check the tightness of all nuts, bolts, pins, and
screws. Tighten any that may be loose and replace any that may have been lost during use.
Be sure the safety interlock controls are operating properly so that the engine cannot be started
unless the ground speed control lever is in neutral and the blades disengaged.
Check the mower blades for any damage or abnormal wear and replace in sets so that they are
balanced.
Check the mower cutting height to assure a high quality and even cut.
Check the tire pressure on all four (4) tires.
Check all belts for proper wear and correct tension.
Check engine oil and air filter as recommended in the engine manufacturer's operators manual.

Bradley Hydro Drive Walk Behind Mower Owner's Manual
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OPERATION OF EQUIPMENT
1. DANGER: GASOLINE IS HIGHLY FLAMMABLE AND EXPLOSIVE. DO NOT ADD FUEL WHILE
THE ENGINE IS RUNNING OR IS HOT. KEEP OPEN FLAMES, SPARKS, AND HEAT AWAY FROM
THE FUEL AND STORE FUEL IN CONTAINERS SPECIFICALLY DESIGNED FOR THAT PURPOSE.
ADD FUEL OUTDOORS ONLY AND IF THE FUEL IS SPILLED, DO NOT START THE ENGINE.
MANUALLY PUSH THE MOWER AWAY FROM THE SPILL AND IMMEDIATELY WIPE UP.
2. DANGER: GASES EMITTED BY A CHARGING BATTERY ARE EXPLOSIVE. KEEP HEAT
SPARKS AND OPEN FLAMES AWAY FROM A CHARGING BATTERY.
3. Do not operate the engine in a confined space where dangerous carbon monoxide fumes can collect.
Carbon monoxide is odorless, tasteless, and can be fatal.
4. Mow only in daylight.
5. Make sure the mower is in neutral and the blades are disengaged before attempting to start the engine.
6. Do not stop or start suddenly when going uphill. Never use riding attachments on slopes since there is
an increased risk that they might roll over.
7. Avoid steep slopes and use extreme caution when changing directions or speed when operating on a
slope.
8. Be extremely careful when operating on a slope or when the grass is damp or wet. Reduced traction
could cause sliding. Never mow by pulling the mower back towards you as you might slip.
9. Watch for traffic when crossing surfaces other than grass (i.e. transporting), loading a trailer or vehicle,
or when the mower is not in use.
10. Never operate the mower with defective guards, shields, or without the safety devices securely mounted
in place.
11. Never direct discharge of material toward bystanders or allow anyone near the mower while in
operation.
12. Do not change the engine governor settings or over-speed the engine.
13. Always stop the engine whenever you leave the mower, even for a moment.
14. To help reduce the risk of a fire hazard, keep the engine and the area around the engine free of grass,
leaves, or any other type of foreign material.
15. Beware of cutting edges. Always wear gloves for safety when performing blade maintenance activities.
Beware on multiple blade units since the rotation of one blade may cause the rotation of the other
blades.
16. Keep body and hands away from pin holes or nozzles that eject hydraulic fluid since fluid escaping under
pressure may have sufficient force to penetrate skin and cause serious injury. If foreign fluid is injected
into the skin, it must be surgically removed within a few hours by a doctor familiar with this form of injury.
Always use paper or cardboard and not hands to search for leaks.

Bradley Hydro Drive Walk Behind Mower Owner's Manual
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OPERATING THE MOWER
It is recommended that before you operate the mower, you allow adequate time to fully understand
the controls and operation of the equipment. When reading this manual, it is recommended that you
do so with the equipment nearby for quick orientation, to reference the controls, and understand
maintenance adjustments.
OPERTING CONTROLS
Before continuing to read the manual, it is recommended that you take adequate time to identify the controls
of the mower.
A Blade Control Lever
B Throttle control
C Choke control
D Safety switch
E Left control lever
F Right control lever
G Ignition switch
H Parking brake lever
I Neutral Lever
E
D
C
A
B
F
G
l
H

Bradley Hydro Drive Walk Behind Mower Owner's Manual
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STARTING THE ENGINE (Make Sure Battery Is Fully Charged)
DANGER: DO NOT OPERATE THE ENGINE IN A CONFINED SPACE WHERE DANGEROUS
CARBON MONOXIDE FUMES CAN COLLECT. CARBON MONOXIDE IS ODORLESS,
TASTELESS, AND CAN BE FATAL.
After going through the steps on pages 5 and 6, you are ready to start the engine.
NOTE: THIS UNIT WAS SHIPPED WITHOUT GAS, BE SURE TO ADD FRESH GAS AND DOUBLE
CHECK THE OIL IN THE ENGINE BEFORE ATTEMPTING TO START THE MOWER.
1. Make sure the Parking Brake Lever is in the "ON" position.
2. Make sure the Neutral lever is disengaged.
3. Make sure the Blade Control Lever is in the "OFF" position.
4. Slide the Throttle Control to the 心position , "Choke" if the engine is cold.
5. For Electric Start engines, turn the key clockwise to the "Start" position. Once started, the key will return
to the "Run" position. Note: Do not keep the key in the "Start" position more than a few seconds. If
engine does not start, wait 15 seconds before trying again.
6. Once the engine is running, slowly move the Throttle Control to the desired engine speed.
MOVING THE MOWER FORWARD
CAUTION: BECOME COMPLETELY FAMILIAR WITH THE OPERATION CHARACTERISTICS OF THE
MOWER BEFORE ATTEMPTING TO USE IT.
1. Make sure the Left Control Lever is down out of the Neutral Lock position.
2. Gently push the controls forward. Push the Left and Right Control Levers away from you an equal
amount to go straight. It is recommended you start slow and increase your speed as you increase your
comfort with the controls.
3. Allowing the Left and Right Control Levers to return to a center neutral position allows the mower to stop
moving. Note: if the operator lets go of the Left Control Lever while the blades are engaged and/or the
mower is moving, the safety interlock system will stop the engine. To restart the mower, reset the Blade
Control Lever to "Off "and the parking brake to the "On" position.
NOTE: Top speed is suggested only for transport.
MOVING THE MOWER IN REVERSE
Slowly and evenly pull the Left and Right Control Levers toward you. The more the Control Levers are pulled
toward you, the faster you will move. It is recommended to move in reverse slowly.
NOTE: When moving in reverse, be aware of your surroundings by looking down and behind.
STOPPING THE MOWER
Gently let the Left and Right Control Levers return to their neutral, at rest position. If the operator is leaving
the operator position for any reason, disengage the blades, shut off the engine, engage the parking brake,
and remove the key.
NOTE: Park the mower on level ground. If it is not possible to do so, be sure to the block the wheels
to prevent the mower from rolling away.

Bradley Hydro Drive Walk Behind Mower Owner's Manual
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TURNING THE MOWER
To turn the mower in the desired direction, gently pull the chosen direction's Control Lever toward you (i.e. to
turn right, pull the Right Control Lever toward you). The more a particular Control Lever is pulled toward you,
the sharper the turn the mower will make.
MOWING
DANGER:THOROUGHLY INSPECT THE AREA WHERE THE MOWER IS TO BE USED. LOOK FOR
ITEMS SUCH AS STONES, STICKS, WIRE, AND OTHER FOREIGN OBJECTS. WHEN STRUCK BY THE
MOWER, THESE AND OTHER OBJECTS MAY BECOME PROJECTILES THAT COULD LEAD TO
SERIOUS INJURY AND/OR DEATH. CLEAR AREA OF ALL DEBRIS AND KEEP PEOPLE AND PETS
AWAY.
DANGER: NOT OPERATE THE MOWER WITH DEFECTIVE GUARDS OR SHIELDS. DO NOT
OPERATE THE MOWER WITHOUT THE SAFETY DEVICES SECURELY IN PLACE.
For the highest quality of cut and performance, mow with the engine at full throttle. Quality of cut may be
determined by the ground speed and speed of the mower. Generally, the slower the mower travels across
the terrain. the better the cut.
1. With the engine running and the mower placed at the beginning of the area to be mowed, make sure the
left control lever is down and out of the neutral lock position.
2. Push the Blade Control Lever forward to the "On" position to engage the blades.
3. To disengage blades, come to a complete stop and pull the Blade Control Lever to the "Off" Position.
MOVING THE MOWER WITH THE ENGINE OFF
1. Engage the Parking Brake Lever by moving it to the "On" position.
2. Engage the Neutral Lever by moving it in the direction of the arrow.
3. Disengage the Parking Brake Lever by moving it to the "Off" position.
4. Move the mower.
NOTE: Be careful of the weight of the mower as you move it without using the engine.
5. Before starting the mower, mark sure the driving controls are in neutral with left control in "up" position,
the parking brake is engaged and the neutral lever is disengaged.
PARKING THE MOWER
Pull the Parking Break Lever to the "On" position.
NOTE: Gently engage the braking mechanism. Excessive force may cause damage.
CAUTION: IF YOU ARE NOT FAMILIAR WITH THE OPERATION OF THE HYDRO DRIVE AND ZERO
TURN FEATURE, PRACTICE TURNING AND MANUEVERING WITH THE CONTROLS
BEFORE ENGAGING THE BLADE

Bradley Hydro Drive Walk Behind Mower Owner's Manual
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CUTTING HEIGHT
CHANGING THE CUTTING HEIGHT
DANGER: BEFORE MAKING ANY ADJUSTMENTS AND/OR SERVICING YOUR MOWER, MAKE
SURE THE MOWER IS ON LEVEL GROUND, THE BLADES DISENGAGED, THE KEY REMOVED, AND
THE ENGINE OFF WITH THE SPARK PLUG WIRE(S) REMOVED FROM THE SPARK PLUG(S) TO
PREVENT ACCIDENTAL CONTACT.
When your Bradley mower is shipped from the factory, the mowing height is set at 2 1/2". The mowing height
may be raised or lowered using a combination of front wheel spacers and blade bolt assembly spacers. It is
recommended that you first set your cutting height to the highest Ievel using the blade spacers and then
lower the cutting height using the front wheel spacers.
MEASURING THE CUTTING HEIGHT
CAUTION: BEWARE OF THE CUTTING EDGES ON THE BLADES. THE ROTATION OF ONE BLADE
MAY CAUSE THE OTHER BLADE(S) TO ROTATE. ALWAYS WEAR WORK GLOVES WHEN
HANDLING BLADES.
1. Park the mower on Ievel ground.
2. With the Blade Control Lever in the "Off " position, the engine off with the key removed, and the spark
plug wire(s) removed from the spark plug(s)，reach through the discharge chute and slowly rotate the
blade so that the length of the blade is going from the front of the mower towards the rear.
3. Using a measuring device, measure the distance from the front tip of blade's cutting edge to the ground.
As a general rule, if measuring the cutting height on a hard surface such as concrete, the mower will
usually mower about 1/4" lower in the grass due to the weight of the machine.
REMOVING AND ADJUSTING THE BLADES
CAUTION: .BEWARE OF THE CUTTING EDGES ON THE BLADES. THE ROTATION OF ONE BLADE
MAY CAUSE THE OTHER BLADE(S) TO ROTATE. ALWAYS WEAR WORK GLOVES WHEN
HANDLING BLADES.
1. Park the mower on Ievel ground and block the rear wheels to prevent accidental rollback.
2. Raise the front end of the mower using a jackstand.
3. Using two (2) 15/16" box end wrenches, use one wrench to loosen nut A" while holding blade bolt "C"
with the other wrench.
4. Slide the blade bolt down through the mower deck and out.
5. To raise the blades to the height desired, remove the appropriate amount of spacers from the blade bolt.
Example: IF the height of cut needs to be raised 1/2", move two (2) of the 1/4" spacers "B" on each blade
from underneath the mower (Figure 1)to the top of the mower (Figure 2).
6. Reinsert the blade bolt through the cutting deck.
7. Install the blade spacers that were removed back onto the blade bolt followed by the nut and tighten.
IMPORTANT: The amount of spacers should always be the same on each blade bolt. Never put the
spacers below the blade.

Bradley Hydro Drive Walk Behind Mower Owner's Manual
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ADJUSTING THE FRONT WHEELS (FIGURE 3)
Wheel Assembly
Figure 1
Figure 2
Figure 3
1/2 "Spacers
1/4 "Spacers "B "
Pin
Flat Steel Washer
（Do not remove）
1/4 "Spacers "B "
1/4 "Spacers "B "
1/4 "Spacers "B "
Nut "A "
Nut "A "
Blade Bolt "C "
Blade
Blade
Blade Bolt

Bradley Hydro Drive Walk Behind Mower Owner's Manual
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GENERAL MAINTENANCE
Proper maintenance and adjustment of your Bradley hydro mower is necessary to keep the mower in good,
working and safe condition. The maintenance of the mower is the responsibility of the owner/operator and
must be performed at regular intervals. When replacing any parts or servicing your mower, be sure to use
only genuine Bradley mower replacement parts to ensure quality performance of your mower.
DANGER: BEFORE MAKING ANY ADJUSTMENTS AND/OR SERVICIN YOUR MOWER, MAKE
SURE THE MOWER IS ON LEVEL GROUND, THE BLADES DISENGAGED, THE KEY REMOVED, AND
THE ENGINE OFF WITH THE SPARK PLUG WIRE(S) REMOVED FROM THE SPARK PLUG(S) TO
PREVENT ACCIDENTAL CONTACT. IF ADJUSTMENT OR MAINTENACE IS BEING PERFORMED
AFTER OPERATION OF THE MOWER, ALLOW THE UNIT TO COOL AS HEAT BUILDUP COULD
CAUSE SEVERE BURNS.
MAINTENANCE SCHEDULE
ITEM
PROCEDURE
TIME INTERVAL
Break-In
(first 5
hours)
Every 8
Hours
(Daily)
Every 40
Hours
(Weekly)
Every 100
Hours
(Bi-weekly)
Every200
Hours
(Monthly)
Belts
Inspect(adjust as needed)
√
√
Blades
Inspect and Sharpen
√
Engine Air Filter
Inspect
(see engine owner’s manual)
√
Engine Cooling
Areas
Clean
(see engine owner’s manual)
√
Engine Oil
Check
(see engine owner’s manual)
√
Change
(see engine owner’s manual)
√
√
Engine Oil Filter
Change
(see engine owner’s manual)
√
√
Engine Spark
Plug(s)
Inspect
(see engine owner’s manual)
√
Fuel Filter
Replace
√
Fuel Line
Check
√
Replace
Every 2 years
Grease Fittings
Refer to page 15
Hardware
Check for proper tightness
√
√
Mower Main
Frame
Remove debris from under
belt cover
√
Power wash engine mower
√
Safety Interlock
System
Check operation and
switches
√
Tires
Check air pressure
√
Battery
Change battery if not used for
30 days
√

Bradley Hydro Drive Walk Behind Mower Owner's Manual
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FUEL
DANGER: GASOLINE IS HIGHLY FLAMMABLE AND EXPLOSIVE. DO NOT ADD FUEL WHILE
THE ENGINE IS RUNNING OR IS HOT. KEEP OPEN FLAMES, SPARKS, AND HEAT AWAY FROM THE
FUEL AND STORE FUEL IN CONTAINERS SPECIFICALLY DESIGNED FOR THAT PURPOSE. ADD
FUEL OUTDOORS ONLY AND IF FUEL IS SPILLED, DO NOT START THE ENGINE. MANUALLY PUSH
THE MOWER AWAY FROM THE SPILL AND WIPE UP IMMEDIATELY.
Refer to the Engine Owner's Manual for the type of fuel to use.
ENGINE OIL
NOTE: CHECK THE ENGINE OIL BEFORE EACH USE. Refer to the Engine Owner's Manual for the
type of oil, oil change intervals, and the proper procedures to check and change oil.
AIR FLITER
Refer to the Engine Owner's Manual for recommended maintenance.
TIRE PRESSURE
The recommended tire pressure for the two drive wheels is 22 P.S.I. The recommended tire pressure for the
two front wheels is 46 P.S.I. Incorrect tire pressure may cause the mower to pull to one side and/or cause an
uneven cut. Always use caution when filling the tire and never exceed the recommended tire
pressure.
BLADES
DANGER: BEFORE WORKING ON THE BLADES, MAKE SURE THE ENGINE IS OFF,KEY
REMOVED,AND THE SPARK PLUG(S) WIRES REMOVED FROM THE SPARK PLUG(S) TO PREVENT
ACCIDENTAL CONTACT.
CAUTION: BEWARE OF THE CUTTING EDGES ON THE BLADES. THE ROTATION OF ONE BLADE
MAY CAUSE THE OTHER BLADE(S) TO ROTATE. ALWAYS WEAR WORK GLOVES WHEN
PERFORMING BLADE MAINTENANCE.
Blades should be inspected on a daily basis for nicks, bends, and/or excessive wear. If the blades are worn,
cracked, bent, or damaged, replace with a new blade immediately before using the mower. Use only genuine
Bradley replacement blades as substitute blades may not meet Bradley mower specifications and may be
dangerous.
To remove the blades, refer to: page 11，"Removing and Adjusting the Blades."
When sharpening the blades, sharpen only the cutting edges and try to maintain the original angle of
the blade. Do not make the cutting edge "razor sharp." Remove the same amount from each side of
the blade so that balance is maintained.
CLEANING THE MOWER
It is recommended that the mower be cleaned on a daily basis. Excessive accumulation of dirt, debris,
oil, etc. causes premature wear on the components and may present a potential safety hazard.

Bradley Hydro Drive Walk Behind Mower Owner's Manual
14
LUBRICATION POINTS
To ensure proper lubrication on moving parts, it is recommended that you lubricate the following
components with a high-quality EP2 high-temperature based grease or equivalent. Should the
conditions of operation be more severe than normal, the lubrication interval may be shorter than
recommended. GRT/OPE Grease is the recommended lubricant.
Deck Idler Arm pivot
Every 40hrs/Weekly
Blade Bell Crank
Every 40hrs/Weekly
Link Idler Arm pivot
Every 40hrs/Weekly
Blade Engagment pivot
Every 40hrs/Weekly
Front Caster Support
Right and Left Side
Every 40hrs/Weekly
Front Caster Wheel
Right and Left Side
Every 40hrs/Weekly

Bradley Hydro Drive Walk Behind Mower Owner's Manual
15
SERVICE ADJUSTMENTS
DANGER: BEFORE MAKING ANY ADJUSTMENTS AND/OR SERVICING YOUR MOWER,
MAKE SURE THE MOWER IS ON LEVEL GROUND, THE BLADES DISENGAGED, THE KEY
REMOVED, AND THE ENGINE OFF WITH THE SPARK PLUG WIRE(S) REMOVED FROM THE
SPARK PLUG(S) TO PREVENT ACCIDENTAL CONTACT. IF ADJUSTMENT OR MAINTENACE IS
BEING PERFORMED AFTER OPERATION OF THE MOWER, ALLOW THE UNIT TO COOL AS
HEAT BUILDUP COULD CAUSE SEVERE BURNS.
ENGINE TO BLADE BELT ADJUSTMENT FOR 36" MOWER (FIGURE 4)
1. Remove the deck cover and move the blade control lever on the control console to the "ON" position.
2. With approximately 10 pounds of pressure being applied on the engine to blade belt midway between
the pulleys, the belt should move approximately 1/2".
3. If the belt moves more than 1/2", move the blade control lever back to the "OFF" position.
4. Remove cotter pin "A" and the flat washer from blade rod "D" and pull the blade rod from idler arm "C".
5. Loosen the nut and rotate turn buckle tube "B" clockwise, or towards, the rear of the idler pulley
approximately 2 to 3 turns. Tighten the nut. Reinsert blade rod "D" back into idler arm "C" and secure
with the flat washer and cotter pin.
6. Repeat steps 1 and 2 to check for proper tension. If more tension is needed, repeat steps 3-5 until the
proper tension is achieved.
7. Move the blade control lever on the control console to the "OFF" position, check that the brake pad is
against the pulley, if not adjust nut "E". Move the blade control lever to the "ON" position and check that
the brake pad cannot touch the pulley.
8. Replace the deck cover.
A
C
Figure 4
E
D
B

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16
ENGINE TO BLADE BELT ADJUSTMENT FOR 48" AND 52" MOWER (FIGURE 5)
1. Remove the deck cover and move the blade control lever on the control console to the "ON" position.
2. With approximately 10 pounds of pressure being applied on the engine to blade belt midway between
the pulleys, the belt should move approximately 1/2"
3. If the belt moves more than 1/2", move the blade control lever back to the "OFF" position.
4. Remove cotter pin "A" and the flat washer from swivel "B" and pull the swivel from idler arm "C".
5. Loosen the nut and rotate turn buckle tube "B" clockwise, or towards, the rear of the idler pulley
approximately 2 to 3 turns. Tighten the nut. Reinsert blade rod "D" back into idler arm "C" and secure
with the flat washer and cotter pin.
6. Repeat steps 1 and 2 to check for proper tension. If more tension is needed, repeat steps 3 一5 until the
proper amount of tension is achieved.
7. Replace the deck cover.
BLADE TO BLADE BELT ADJUSTMENT FOR 48" AND 52" MOWER (FIGURE 6)
1. Remove the deck cover.
2. With approximately 10 pounds of pressure applied on the blade to blade belt, midway between the
pulleys, the belt should move approximately 1/2"
3. If the belt moves more than 1/2", loosen nut "F" and turn nut "E" clockwise approximately 1 to 2 turns
and then tighten the nuts.
4. Recheck the tension on the blade to blade belt. If it is still loose, repeat step 3. Important: Do not over
tighten the blade to blade belt. Over tension can cause premature wear on the belts and blade spindles.
5. Replace the deck cover.
6
Figure 5
A
B
C
D
Midway Point
E
F

Bradley Hydro Drive Walk Behind Mower Owner's Manual
17
ENGINE TO TRANSMISSION BELT ADJUSTMENT (FIGURE 7)
1 . The engine to transmission belt, located underneath the rear deck
deck, should move 1/8" with 5 Ibs of pressure applied midway on
the belt between the transmission pulley and the engine output
shaft pulley.
2. To adjust the belt, loosen nut "A" and turn nut "B" 2 to 3 turns
and tighten the nuts.
3. Repeat steps 1 一2 until the proper tension amount is achieved.
SAFETY SYSTEM ADJUSTMENT
DANGER: DO NOT BYPASS, MODIFY, OR DISCONNECT THE
SAFETY SYSTEM. MAKE SURE THAT THE SAFETY INTERLOCK
SYSTEM IS FULLY OPEARTIONAL EACH TIME BEFORE MOWING.
FAILURE TO DO SO COULD PRESENT DANGER TO YOU AND
OTHERS.
1. Move the blade control lever to the "OFF" position.
2. Pull the blade rod from the idler arm
3. Loosen nut "D" and turn the blade rod 1 to 3 turns, reinsert blade rod back into idler arm. And secure it
with the flat washer and cotter pin.
4. Check that safety switch "C" is firmly against blade bell crank, if not, repeat steps 2 and 3 until the
plunger of switch C is firmly depressed against the blade bell crank. (see Figures 8 一9)
C
8
7
9
C
Blade ROd

Bradley Hydro Drive Walk Behind Mower Owner's Manual
18
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
Engine does not start
Check battery and
make sure battery is
fully charged
Parking Brake Lever in "OFF" position
Move lever to "ON" position
Blade Control Lever in "ON" position
Move lever to "OFF" position
Out of fuel
Fill fuel to tank
Fuel shut-off valve closed
Open valve
Safety interlock switch out of
adjustment
Adjust switches
Spark plug loose or disconnected
Connect spark plug wire
Faulty spark plug
Replace
Dirty air filter
Replace
Clogged fuel filter
Replace
Bad fuel
Drain and refill With fresh fuel
Engine starts hard or
loses power
Dirt or water in the fuel tank
Drain and clean fuel tank
Clogged or dirty fuel filter
Replace
Dirty air filter
Replace
Faulty spark plug
Replace
Incorrect oil level
Check and adjust
Engine overheats
Dirt in fuel line
Clean and replace
Dirty grass screen
Clean
Incorrect oil level
Check and adjust
Dirty air filter
Check and adjust
Faulty spark plug
Replace
Mower pulls to one
side
Incorrect tracking adjustment
Check and adjust
Blades do not turn
Blade belt broken or slipping
Replace or adjust
Excessive build-up underneath mowing
deck
Check and clean
Rough or uneven cut
Tire pressure not equal
Check and adjust
Unequal spacer configuration on
blades or front casters
Check and adjust
Mower speed too fast for mowing
conditions
Reduce speed
Blades bent
Check and replace
Blades dull
Sharpen or replace
Excessive build-up underneath mowing
deck
Check and clean
Blades installed upside down
Remove and replace in correct
direction

Bradley Hydro Drive Walk Behind Mower Owner's Manual
19
Uncrating instruction
1. Remove the packing frame by using two 16mm wrenches.
2. Remove the plastic.

Bradley Hydro Drive Walk Behind Mower Owner's Manual
20
4. Remove the fixed bolts.
3. Remove the accessory box which includes the following parts:
Left & Right front wheel assembly, bolts.
1