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Safe  

Operation 

Practices

General Operation

1. 

Read this operator’s manual  carefully in its entirety 
before attempting to assemble this machine. Read, 
understand, and follow all instructions on the ma-
chine and in the manual(s) before operation. Keep 
this manual in a safe place for future and regular 
reference and for ordering replacement parts.

2.  Be completely familiar with the controls and the 

proper use of this machine before operating it. 

3.  This machine is a precision piece of power equip-

ment, not a plaything. Therefore, exercise extreme 
caution at all times. Your unit has been designed to 
perform one job: to mow grass. Do not use it for any 
other purpose.

4.  Never allow children under 14 years old to operate 

this machine. Children 14 years old and over should 
read and understand the instructions in this manual 
and should be trained and supervised by a adult.

5.  Only responsible individuals who are familiar with 

these rules of safe operation should be allowed to 
use this machine.

6.  Thoroughly inspect the area where the equipment is 

to be used. Remove all stones, sticks, wire, bones, 
toys and other foreign objects which could be tripped 
over or picked up and thrown by the blade. Thrown 
objects can cause serious personal injury.

7.  Plan your mowing pattern to avoid discharge of 

material toward roads, sidewalks, bystanders and the 
like. Also, avoid discharging material against a wall 
or obstruction which may cause discharged material 
to ricochet back toward the operator. 

8.  To help avoid blade contact or a thrown object injury, 

stay in the operator zone behind the handles and 
keep children, bystanders, helpers and pets at least 
75 feet from the mower while it is in operation. Stop 
machine if anyone enters the area.

9.  Always wear safety glasses or safety goggles during 

operation and while performing an adjustment or repair 
to protect your eyes. Thrown objects which ricochet can 
cause serious injury to the eyes.

10. Wear sturdy, rough-soled work shoes and close-

fitting slacks and shirts. Shirts and pants that 
cover the arms and  legs and steel-toed shoes are 
recommended. Never operate this machine in bare 
feet, sandals, slippery or light weight (e.g. canvas) 
shoes.

11. Do not put hands or feet near rotating parts or under 

the cutting deck. Contact with the blade can amputate 
hands and feet.

12. A missing or damaged discharge cover can cause 

blade contact or thrown object injuries.

13. Many injuries occur as a result of the mower being 

pulled over the foot during a fall caused by slipping or 
tripping. Do not hold on to the mower if you are falling; 
release the handle immediately. 

14. Never pull the mower back toward you while you are 

walking. If you must back the mower away from a wall 
or obstruction first look down and behind to avoid 
tripping and then follow these steps:

a.  Step back from the mower to fully extend your 

arms.

b.  Be sure you are well balanced with sure footing.
c.  Pull the mower back slowly, no more than half way 

toward you.

d.  Repeat these steps as needed.

15. Do not operate the mower while under the influence of  

alcohol or drugs.

16. Do not engage the self-propelled mechanism on units 

so equipped while starting engine.

17. The blade control handle is a safety device. Never 

attempt to bypass its operation. Doing so makes the 
safety device inoperative and may result in personal 
injury through contact with the rotating blade. The 
blade control handle must operate easily in both 
directions and automatically return to the disengaged 
position when released.

18. Never operate the mower in wet grass. Always be 

sure of your footing.  A slip and fall can cause serious 
personal injury. If you feel you are losing your footing, 
release the blade control handle immediately and the 
blade will stop rotating within three seconds.

19. Mow only in daylight or in good artificial light. Walk, 

never run. 

20. Stop the blade when crossing gravel drives, walks or 

roads.

21. If the equipment should start to vibrate abnormally, 

stop the engine and check immediately for the cause. 
Vibration is generally a warning of trouble.

WARNING: Engine Exhaust, some of its constituents, and certain vehicle components contain 
or emit chemicals known to the State of California to cause cancer and birth defects or other 
reproductive harm.

WARNING

This symbol points 
out important safety 
instructions which, if 
not followed, could 
endanger the personal 
safety and/or property 
of yourself and others. 
Read and follow all 
instructions in this 
manual before at-
tempting to operate 
this machine. Failure 
to comply with these 
instructions may result 
in personal injury. When 
you see this symbol. 

HEED ITS WARNING!

 

Your Responsibility 
Restrict the use 
of this power machine 
to persons who read, 
understand 
and follow the warnings 
and instructions 
in this manual 
and on the machine. 

DANGER: This machine was built to be operated according to the rules for safe operation in this manual. As with 
any type of power equipment, carelessness or error on the part of the operator can result in serious injury. This 
machine is capable of amputating hands and feet and throwing objects. Failure to observe the following safety 
instructions could result in serious injury or death.

Summary of Contents for 978

Page 1: ...y OPERATOR S MANUAL IMPORTANT READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATING EQUIPMENT PRINTED IN U S A LES DISTRIBUTIONS RVI LIMITÉE 2955 JEAN BAPTISTE DESCHAMPS LACHINE QUEBEC H8T 1C5 21 Self Propelled Rotary Mower Model Series 900 12 22 10 769 04157C Model 978 shown ...

Page 2: ...onsible for all engine related issues in terms of performance power rating specifications warranty and service Depending on the engine manufacturer more information is included in this publication or packed separately with this product Slope Gauge 3 Safe Operation Practices 4 Safety Symbols 7 Set Up Adjustments 8 Operation 10 Maintenance Off Season Storage 12 Trouble Shooting 16 Replacement Parts ...

Page 3: ... and you could slip resulting in serious injury Operate RIDING mowers up and down slopes never across the face of slopes Operate WALK BEHIND mowers across the face of slopes never up and down slopes Sight and hold this level with a vertical tree or a corner of a building or a fence post F o l d a l o n g d o t t e d l i n e r e p r e s e n t s a 1 5 s l o p e 15 Use this page as a guide to determi...

Page 4: ... a fall caused by slipping or tripping Do not hold on to the mower if you are falling release the handle immediately 14 Never pull the mower back toward you while you are walking If you must back the mower away from a wall or obstruction first look down and behind to avoid tripping and then follow these steps a Step back from the mower to fully extend your arms b Be sure you are well balanced with...

Page 5: ... them 1 Keep children out of the mowing area and under the watchful care of a responsible adult other than the operator 2 Be alert and turn mower off if a child enters the area 3 Before and while moving backwards look behind and down for small children 4 Use extreme care when approaching blind corners doorways shrubs trees or other objects that may obscure your vision of a child who may run into t...

Page 6: ...g 9 Grass catcher components discharge cover and trail shield are subject to wear and damage which could expose moving parts or allow objects to be thrown For safety protection frequently check components and replace immediately with original equipment manufac turer s O E M parts only listed in this manual Use of parts which do not meet the original equipment specifications may lead to improper pe...

Page 7: ...hands and feet away from rotating parts DANGER THROWN DEBRIS Remove objects that can be thrown by the blade in any direction Wear safety glasses DANGER SLOPES Use extra caution on slopes Do not mow slopes greater than 15 WARNING GASOLINE IS FLAMMABLE Allow the engine to cool at least two minutes before refueling WARNING CARBON MONOXIDE Never run an engine indoors or in a poorly ventilated area Eng...

Page 8: ...e control handle against the upper handle Position A b Pull the starter rope out of the engine slowly until it extends past the rope guide pigs tail Position B c Guide the starter rope around the rope guide pig tail until the rope is securely in the center Position C d Tighten rope guide wing nut star knob 4 Insert post on cable ties into holes provided on the lower handle Pull cable tie tight and...

Page 9: ...scharge chute with wing nuts See Figure 5 7 The height adjuster determines the cutting height of the mower The adjuster is located above the left rear wheel To adjust the cutting height pull the lever out and away from the mower and then move it forward or back to select a new cutting height See Figure 9 NOTE Some models are equipped with optional front wheel casters Refer to the Operation Section...

Page 10: ...ront wheel cutting height is determined by the selection of one of six positions in each caster assembly See Figure 9 To adjust remove the wing nut from the axle bolt Slide the axle bolt and spring washer from the assembly and select a cutting height With the spring washer on the axle bolt reinsert in the square hole desired through the wheel assembly and secure with the wing nut previously remove...

Page 11: ...n and pull slowly until resistance is felt then pull rapidly to start engine and avoid kickback Return it slowly to the rope guide 4 To engage the drive squeeze the drive control handle towards the upper handle Release the drive control to slow down when negotiating an obstacle making a turn or stopping 5 The six speed shift lever is located on the drive clutch control housing on the upper handle ...

Page 12: ...is essential to engine performance and life Be certain to remove all grass dirt and combustible debris from muffler area Deck The underside of the mower deck should be cleaned after each use to prevent a buildup of grass clippings leaves dirt or other matter If this debris is allowed to accumulate it will invite rust and corrosion and may prevent proper mulching The deck may be cleaned by tilting ...

Page 13: ... marked bottom or with part number facing away from the adapter Align the blade bell support over the blade with the tabs in the holes of the blade and insert the hex bolt 8 Tighten the hex bolt to the torque listed below Blade Mounting Torque Center Bolt 450 in lb min 600 in lb max To insure safe operation of your unit ALL nuts and bolts must be checked periodically for correct tightness Belt Car...

Page 14: ... Lift off the lower pulley assembly and remove the old belt from around the crankshaft 15 Place the new belt over the transmission pulley Start the belt in pulley groove and rotate pulley until belt is seated in transmission pulley 16 Place belt between idler pulley and the belt keeper bracket 17 Using pliers rotate the belt keeper bracket so that it snaps into slot on the idler bracket 18 Tighten...

Page 15: ...l for correct engine storage instructions 4 Coat mower s cutting blade with chassis grease to prevent rusting 5 Store mower in a dry clean area Do not store next to corrosive materials such as fertilizer NOTE When storing any type of power equipment in a poorly ventilated or metal storage shed care should be taken to rust proof the equipment Using a light oil or silicone coat the equipment especia...

Page 16: ... Engine overheats 1 Fill crankcase with proper oil 2 Refer to the engine manual packed with your unit 3 Remove blower housing and clean 4 Refer to engine manual 1 Engine oil level low 2 Dirty air filter 3 Air flow restricted 4 Carburetor not adjusted properly Occasional skip hesitates at high speed 1 Adjust gap to 030 Refer to engine manual 2 Refer to engine manual 1 Spark plug gap too close 2 Car...

Page 17: ...er and Description 734 2044B Wheel Rear 734 2004A Wheel Front models w o front wheel casters 734 1857 Wheel Front models w front wheel casters 731 1832 Side Discharge Chute 664 0076A Grass Bag 942 0741A Mulching Blade 954 0460 V Belt 725 04329 Battery Charger 925 04323 Battery 925 0201 Key If Equipped ...

Page 18: ...as lubricants filters blade sharpening tune ups brake adjustments clutch adjustments deck adjustments and normal deterioration of the exterior finish due to use or exposure d Service completed by someone other than an authorized service dealer e MTD does not extend any warranty for products sold or exported outside of Canada including possessions and territories f Replacement parts that are not ge...

Page 19: ...HROUGH THE RESPECTIVE MANUFACTURERS SERVICE DEALERS Belts light bulbs clutch parts friction wheels grass bags tires seats rider deck wheels and cutting blades are covered by a 60 day limited warranty Batteries are warranted against defect for 90 days at 100 of their value and 50 of their value for the period between the 91st day and the 120th day Fuses shear bolts and blade adapters are considered...

Page 20: ...20 NOTES ...

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