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Section 5: Maintenance

WARNING  

Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come

to a complete stop, disconnect spark plug wire and move wire away from spark plug.  Remove ignition
key on electric start models.  Failure to follow these instructions can result in serious personal injury or 
property damage.

BLADE DRIVE BELT 
REPLACEMENT

Follow this procedure to remove and re-
place the blade drive belt.  An assistant
will be needed.

To Remove Belt: 

1. Stop engine, wait for all parts to
stop moving, and disconnect spark
plug wire.

2.

Disengage blade drive control (Figure

5-7) by releasing all controls on the
mower.

3.

Remove belt cover (see “Belt Cover

Removal”). 

4.

Loosen belt guides (B and C, 

Figure 5-8).

5.

Move flap bracket (N, Figure 5-8) out

of the way by loosening two screws (M).

6.

Remove belt (A, Figure 5-8) from

around sheaves.

To Install Belt: 

1.

Route belt (A, Figure 5-8) around

sheaves as shown.

2.

Have an assistant hold down Operator

Presence Control and then push the
Blade Drive Control forward until it
latches in place (Figure 5-7).

3.

With the Blade Drive Control lever en-

gaged, adjust and tighten belt guide (B)
to 1/32 - 1/16" away from tensioned belt.
(Be sure that belt does not contact belt
guide when belt is under tension.)
Secure belt guide (C) rotated into posi-
tion as shown in Figure 5-8.

4.

Disengage Blade Drive Control.

5.

Re-tighten two screws (M, Figure 

5-8) that secure flap bracket (N). 

6.

Reinstall belt cover securely.

Figure 5-7: Blade Drive Control.

RIGHT VIEW

Blade Drive Disengaged

Blade Drive Engaged

A

Figure 5-8: Blade drive.

B

J

C

I

H

G

K

L

A

X

M

M

N

Summary of Contents for 933E

Page 1: ...licable local or state laws if any If a spark arrester is used it should be maintained in effective working order by the operator In the State of California the above is required by law Section 4442 of the California Public Resources Code Other states may have similar laws Federal laws apply on federal lands A spark arrester muffler is available through your nearest engine autho rized service deal...

Page 2: ...er because of its wide 33 cut Differential steering makes turning easy while four for ward speeds and one reverse speed allow precise mowing control The wide turf tires give excellent traction and the cutting height can be adjusted with the turn of a single lever We know that there is no better walk behind mower that is available for large lawns Please carefully read this Operator s Manual which t...

Page 3: ...the manuals Be thoroughly familiar with the controls and the proper use of the mower before starting 2 Do not put hands or feet near or under rotating parts Keep clear of the mower blade and discharge opening at all times 3 Only allow responsible individuals who are familiar with the instruc tions to operate the mower 4 Clear the area of objects such as rocks toys wire bones sticks etc which could...

Page 4: ... limbs etc Watch for holes ruts or bumps Tall grass can hide obstacles DO NOT Do not mow near drop offs ditches or embankments The operator could loose footing or balance Do not mow excessively steep slopes Do not mow on wet grass Reduced footing could cause slipping III CHILDREN Tragic accidents can occur if the opera tor is not alert to the presence of chil dren Children are often attracted to t...

Page 5: ...ed a replacement decal please refer to the Parts Book that accompanied this Manual CAUTION PINCH POINTS Do not operate with out all belt guards in place Beneath belt pulley cover On Control Panel for electric start model On Control Panel for recoil start model On left side of mower deck On top rear of engine platform ACK DANGER KEEP HANDS and FEET AWAY OBJECTS MAY BE THROWN FROM MOWER Before mowin...

Page 6: ...p of the handlebars 4 Check for any small parts before dis carding the carton or cardboard liners STEP 2 Attach Handlebars to Engine Deck 1 Remove the plastic ties holding the wheel drive rod F Figure 2 7 to the left handlebar and the blade drive rod C Figure 2 7 to the right handlebar Put the rods aside 2 Remove and save the two 5 16 18 x 3 4 screws securing the handlebar ends to the rear of the ...

Page 7: ...d end of the electrical wire harness there are four wires at tached to a large plastic connector and two wires attached to a small plastic connector Plug the large connector into the bottom of the ignition keyswitch that is located on the underside of the han dlebar console not pictured 2 Use two cable ties to secure the wire harness to the right handlebar and away from any moving parts Place the ...

Page 8: ...l rod into wheel drive control arm U Figure 2 6 3 Add a 5 16 washer A Figure 2 6 and attach with a cotter pin B Bend legs of cotter pin over rod to secure 4 At upper end of control rod insert angled end into Wheel Drive Control lever V Figure 2 6A and attach with a cotter pin BB Bend ends of cotter pin over rod to secure Charge battery only with charger sup plied with machine Do not short circuit ...

Page 9: ...Control lever J Figure 2 7 Add one 5 16 washer and attach with cotter pin AA Bend ends of cotter pin to secure D Attach and Adjust Gear Select Lever 1 Using the edge of a piece of flat wood such as a ruler remove the vinyl grip B Figure 2 8 from the gear select lever I Place the wood edge against the edge of the grip and slowly pull off the grip 2 Insert nylon bushing Z Figure 2 8 up into console ...

Page 10: ...eleases the wheel brake 13 With unit on level ground hold down Operator Presence Control lever W Figure 2 7 and push unit forward and backward The wheels should move freely If not adjust length of shift link P Figure 2 9 as necessary 14 Put the Gear Select Lever in neutral N release all of the control levers and try to push the unit forward and back ward The wheels should not turn If they do turn ...

Page 11: ...will also disengage the Blade Drive Control which will apply a brake that stops the blades within three 3 seconds Blade Drive Control Use this lever B Figure 3 1 to en gage drive to the mower blades To engage the blades first engage the Operator Presence Control A Figure 3 1 Then push the spring loaded Blade Drive Control lever B forward until it stays in the engaged position To stop the blades re...

Page 12: ... to ensure that the wheels will not start turning when the engine starts Cutting Height Control Lever Use this lever E Figure 3 4 to adjust the cutting height from 1 to 4 inches Note that actual cutting heights will vary according to soil conditions Turn the lever clockwise to raise the height or counterclockwise to lower the height A decal and pointer not illus trated on the right side of the mow...

Page 13: ...eaving mower unattended or when in specting cleaning or servicing mower Engine Recoil Starter The recoil starter I Figure 3 7 is used to pull start the engine Detailed instructions for using the recoil starter are found in the Operation Section of this Manual and in the Engine Owner s Manual Do not pull the recoil starter until you have read the Operation Section Section 3 Features and Controls ST...

Page 14: ...ire to spark plug after completing above checklist 2 Set Mower Cutting Height 1 Release all controls before adjusting the cutting height 2 Adjust the cutting height from 1 to 4 inches by rotating the Cutting Height Control lever Figure 3 4 either clock wise to raise the height or counterclock wise to lower the height Note that ac tual cutting heights will vary according to grass and soil condition...

Page 15: ...e of the deck opening 3 To remove the cover slide the cover to the right front of mower to disen gage the slot B from the mower deck and then pry the left side of the cover out and off MOVING THE MOWER WITHOUT ENGINE POWER The mower can be manually pushed or pulled by putting the Gear Select Lever C Figure 4 2 in N neutral and pressing and holding the Operator Presence Control A Figure 4 2 down ag...

Page 16: ...Press and hold Operator Presence Control A Figure 4 2 against handlebar grip 3 Slowly push Blade Drive Control B Figure 4 2 fully forward until it stays in the engaged position The blades are now rotating To Stop the Blades To stop the blades release the Operator Presence Control TO ENGAGE THE WHEELS 1 Start engine as described in To Start the Engine instructions 2 FOR FORWARD TRAVEL A Press and h...

Page 17: ...o obtain an even appearance Mowing on Slopes Do not mow excessively steep slopes see WARNING statement that follows Slow down and exercise extreme caution when changing direction on slopes Before mowing on slopes check the en gine oil level and make sure that the level is at the FULL mark Maintaining a FULL oil level is particularly important when operating on slopes as oil can be drained away fro...

Page 18: ...lade Drive Control Drive the mower forward for several more feet Release the Operator Presence Control and look at the lawn The grass should NOT have been cut This indicates that the Operator Presence Control has disen gaged the blade drive and stopped the blades 7 If the mower cuts the grass in Step 6 B the Operator Presence Control is NOT disengaging the blade drive Immediately stop the engine d...

Page 19: ...und dipstick Z Figure 5 1 to prevent dirt from entering oil fill hole 4 Remove dipstick Oil level must be be tween ADD and FULL marks Do not exceed FULL mark on dipstick 5 To add oil pour slowly into dipstick opening While adding check oil level frequently by securely replacing dipstick and removing to read oil level Wipe dip stick clean each time oil level is checked 6 After filling to FULL mark ...

Page 20: ...ure 5 4 after every 100 hours of operation Be sure the gap is set at 030 Do not reuse plug if it is severely worn or damaged Best results are obtained with a new plug See Engine Owner s Manual to de termine proper replacement plug Use of incorrect plug can cause engine damage NOTE Do not clean spark plug in ma chines which use abrasive grit Clean spark plug by scraping or wire brushing or washing ...

Page 21: ...Belt Cover Removal 3 Align sight holes O Figure 5 6 in pulley with spindle housing to mower deck mounting bolts L 4 Loosen screw J and rotate arm K to the rear 5 Loosen four mounting bolts L se curing spindle housing beneath mower deck to mower deck 6 Slide spindle housing with pulley at tached toward center 7 Replace belt N with new belt IMPORTANT SET BLADES PERPEN DICULAR 90 TO EACH OTHER 8 Rota...

Page 22: ...l 4 Loosen belt guides B and C Figure 5 8 5 Move flap bracket N Figure 5 8 out of the way by loosening two screws M 6 Remove belt A Figure 5 8 from around sheaves To Install Belt 1 Route belt A Figure 5 8 around sheaves as shown 2 Have an assistant hold down Operator Presence Control and then push the Blade Drive Control forward until it latches in place Figure 5 7 3 With the Blade Drive Control l...

Page 23: ... the operation of the blade brake see Blade Brake Control Test in the Operation section 7 If the drive belt slips during opera tion it may be necessary to relocate idler J Figure 5 9 in the slot provided in the mounting bracket With the engine stopped and the spark plug wire dis connected loosen the hardware on the idler J and slide it forward to take up slack in the belt 8 Engage the blade drive ...

Page 24: ...er in No 1 setting IMPORTANT DO NOT PARK AGAINST A PAINTED OR SIDED WALL TESTING THE WHEEL DRIVE SYSTEM REQUIRES MACHINE TO BE FORCIBLY PUSHED AGAINST WALL DAMAGE TO PAINT OR SIDING COULD RESULT 3 With engine running and machine placed firmly up against wall hold down Operator Presence Control and fully en gage wheel drive by squeezing Wheel Drive Control until it contacts handlebar 4 Wheels shoul...

Page 25: ...d push unit forward and backward Unit should move freely If not continue with Step 4 4 Remove cotter pin securing shift link P Figure 5 15 to shift rod I 5 Move shift arm X back and forth as necessary into each detent until trans mission is in neutral NOTE Moving shift arm X clockwise all the way to the left and then one notch back counter clockwise should put transmission into neutral When transm...

Page 26: ...er blade produces ex cessive vibration and may damage spin dle bearings Sharpen cutting edge straight across parallel to rear edge of mower blade See Figure 5 16 After sharpening blade balance must be checked IMPORTANT PROFESSIONAL SHARP ENING SERVICES OR YOUR AUTHO RIZED DEALER ARE EQUIPPED TO SHARPEN MOWER BLADES SAFELY To Install Blades Blades must be installed perpendicular to each other see F...

Page 27: ... engine wait for all parts to stop moving and disconnect spark plug wire before performing any lubrication procedures The transmission has been factory sealed and requires no lubrication If a leak should develop contact your local authorized dealer for service information OFF SEASON STORAGE Stop engine wait for all parts to stop moving and disconnect spark plug wire before performing any storage p...

Page 28: ...l injury or property damage Lubrication Chart LUBRICATION TYPE Change Oil Change Oil Lubrication Intervals Vary with Operating Conditions and Type of Oil Used Grease Light Oil Grease ITEM Engine Crankcase Front Wheel Bearings Control Linkages Pivots Transmission Output Shaft INTERVAL First 2 hours 25 50 hours 50 hours 25 hours 100 hours or Annually AMOUNT REQUIRED See Engine Manual Change oil more...

Page 29: ...plete service is available from your local White Outdoor Dealer Before performing any of the maintenance procedures refer to the appropri ate information contained in this Manual or the Engine Owner s Manual for the correct safety precautions and maintenance procedures ITEM Mower Blade Loose or Missing Hardware Belts Engine Oil Level Controls Mulching Cover Engine Oil Engine Oil Foam Air Filter Mo...

Page 30: ...if applicable Transmission malfunction Improperly adjusted drive linkage Broken loose or worn belt s Dull blade s Throttle control out of adjustment Blade brake system out of adjustment Blade s out of balance Loose hardware Troubleshooting Chart ATTENTION This table describes service guidelines only It does not provide com plete service information Complete service is available from your local Whi...

Page 31: ...NOTES ...

Page 32: ...door Products Company TRANSPORTATION CHARGES Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the purchaser Transportation charges for any parts submitted for replacement under this warranty must be paid by the purchaser unless such return is requested by White Outdoor Products Company UNITS EXPORTED OUT OF THE UNITED STATES White Outdoor ...

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