MTD Pro 18HP 48

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removing the lift linkage from the deck will 
cause it to snap back.

d.

Detach the mower drive belt.

e.

Remove six cotter pins (See Fig. 6) (4) 
from the deck and (2) from the front of the 
mower. Remove the cotter pins on the left 
and right rear side of the cutter deck (2); 
remove the cotterpins on the left and right 
front side of the cutter deck (2); and 
remove the cotter pins on the front of the 
mower (2).

f.

Turn front caster wheels outward.

g.

Shift the deck toward the ignition switch 
side of the mower and remove.

h.

To install reverse the process.

2.

Changing a Blade:

a.

Jack up the front of the mowing deck about 
one foot and block it in that position.

b.

To prevent the blade from turning, secure 
the blade by placing by placing a block of 
wood between the blade and the deck 
housing.

c.

Use a 1-1/8" socket wrench on the pulley 
side of the spindle to secure.

d.

Remove the hex nut using a 1-1/8" wrench.

e.

Remove the hex nut.

f.

To replace the blade reverse the above 
process and tighten nut to 100-120 ft. lb.

WARNING:

Never mow with dull blades! Blades that are
bent should be replaced! The cutting blades
are sharp and can cause severe injury. Wrap
the cutting surface of the blade with a rag to
avoid injury.

a. Set the parking brake.
b.

Clean any debris from the blades. Keep 
blades sharp and free of build up at all 
times.

c.

Sharpen blades evenly at the original 30° 
angle to maintain balanced cutting blades. 
Do not sharpen the underside of the 
blades. Use a electric blade sharpener, a 
conventional electric grinder or a hand file 
to sharpen the blades.

d. Replace any blade with severe nicks or 

dents that cannot be removed by filing.

e. Check the balance of the blade after 

sharpening by placing it on a blade bal-
ancer. Do not use un-balanced blades.

f.

If the blade dips on one end, file stock off 
of the cutting surface on that end.

Note:

 

Blades that cannot be easily bal-

anced—REPLACE.

3.

Changing the Blade Drive Belts:

a.

Set the parking brake. Remove ignition key 

and both spark plug caps.

b.

Unscrew the wing nuts from the deck cov-

ers and remove both covers.

c.

Using a 1/2" socket breaker bar or socket 

rachet insert the male end into the 1/2" 
opening in the lower idler arm assembly 
and pull the idler arm clockwise. While 
holding the idler arm back, loosen the 
blade drive belt from the pulley and slide 
the belt away from the pulley.

d.

Remove tension of the PTO belt by moving 

the belt tensioning rod. Loosen the belt 
retaining bolt.

Cotter Pins

Figure. 6

Height of Cut Clevis 

Cotter Pins

Содержание 18HP 48" Stamped Deck

Страница 1: ...MMZ Jr Hydrostatic Zero Turn Riding Mower OPERATOR S AND SERVICE MANUAL MODEL 18HP 48 Stamped Deck...

Страница 2: ...nance and Service 14 A Mower Deck 14 B Hydraulic Oil 16 C Electrical System 17 D Tires 19 E Brakes 19 F Hydraulic System 20 G Storage 21 Maintenance Schedule 22 Performance Adjustments 24 A High Speed...

Страница 3: ...r will give dependable service CAUTION Only thoroughly trained persons should operate and maintain this mower This machine can cause serious injury to anyone who mis uses it and does not understand it...

Страница 4: ...alled 6 Do not check for hydraulic leaks with any part of the body 7 Do not add fuel to a machine when the engine is running and or the exhaust system is hot 8 Keep machine clean and free of debris gr...

Страница 5: ...holes sprinkler heads and other hidden hazards 7 Avoid driving too close to trees creeks ditches sand traps and other obstacles 8 Before backing up check behind you and watch where you re going 9 Alwa...

Страница 6: ...DANGER Part Number 00030633 Part Number 01003859 Part Number 01003858 Part Number 01003449 KEEP HANDS and FEET AWAY DANGER TO R E DU CE TH E R IS K O F I NJU RY D O N OT OP E R ATE M OW E R U N L E S...

Страница 7: ...3 belt driven power take off from engine Controls Engine ignition and start switch throttle choke left and right steering levers electric blade clutch switch parking brake mower deck lift Parking Bra...

Страница 8: ...raise the cutting deck to the trans port position Always allow other vehicles to have the right of way l If you hit a solid object while mowing turn off the blade clutch switch place the steer ing le...

Страница 9: ...wed B Controls 1 Engine Ignition and Start Switch See Fig ure 1 Located on the instrument housing below the right side of the operator s seat When the key is inserted and turned clock wise 45 degrees...

Страница 10: ...move the hand lever outward and slowly reduce foot pedal effort to lower the mechanism To service the unit Remove the hairpin clip from the locking pin and remove the pin from the pedal assembly Fold...

Страница 11: ...hese are detected d Replace the deck cover 4 Adjust the Mowing Deck The cutting height is set anywhere in the range of 1 1 2 to 4 You may need to adjust the mowing deck to achieve the proper angle for...

Страница 12: ...to nearby facilities d Inspect the machine to make sure 1 All guards shields including mower chute deflector are in their proper place are secure and are functional 2 That there are no spilled or lea...

Страница 13: ...lowly move both lap bars toward the rear of the machine until the machine begins to move rearward Release the lap bars and the machine should stop The more the lap bars are moved toward the rear of th...

Страница 14: ...forward and the mower will slowly move forward The farther you move the levers forward the faster the mower will go forward h To back up move both steering levers slightly backward and the mower will...

Страница 15: ...he cutting surface of the blade with a rag to avoid injury a Set the parking brake b Clean any debris from the blades Keep blades sharp and free of build up at all times c Sharpen blades evenly at the...

Страница 16: ...Stop the engine and remove the key from the ignition switch c Clean the area around the Hydraulic Oil fill neck d Remove the hydraulic fill cap and check the level The correct level is up to the low...

Страница 17: ...ap Replace control panel b Clean the battery before storing A dirty battery will lose its charge over time c Store the battery with a full charge A dis charged battery will freeze refer to the table b...

Страница 18: ...ut in the neutral posi tion the parking brake engaged and the blade clutch switch off swing the left steering lever up to the operating position and try to start the engine The engine should not start...

Страница 19: ...p free Slip the axle assembly through one side of the caster yoke through a spacer sleeve a spare wheel the other spacer sleeve and finally through the other side of the caster yoke Then tighten the l...

Страница 20: ...pan under the drain plug on the bottom of the hydraulic oil tank Remove the drain plug drain the tank then replace the plug Place the drain pan under the filter and remove the filter by unscrewing in...

Страница 21: ...mal position and place the steering lever on the side you adjusted up to the operating position If you feel a slight push forward or a slight pull backward from the neu tral position you must adjust t...

Страница 22: ...and the hydro drive belt g Check the blades Make sure they are sharp and that the blade securing cap screws are tight h Check the cutting height 2 When ready to start the engine a Check the five safe...

Страница 23: ...and Down Pivots Seat Hinge Steering Lever Linkage Rod End Bearings Lever Return Assembly Rod End Bearings Pump Control Lever Pivots Brake Lever Pivot Clevis Pin Brake Lever Control Rod Pivot Brake Co...

Страница 24: ...con trol panel see Fig 1 on page 8 of the manual This display defaults to Tachometer mode when engine is running 4 Move the throttle lever to the high speed posi tion and note the RPM reading on the...

Страница 25: ...back should stay in contact with the seat back 2 Lap bars should not contact operator s legs c In the full reverse position 1 Lap bars should not contact the opera tor s legs or torso 2 Set the seat...

Страница 26: ...o raise the deck and loosening the nut to lower the deck The right front blade tip height is fixed so you must adjust the left front tip to match it 7 Measure the blade to ground height at the right r...

Страница 27: ...27 WIRING DIAGRAM...

Страница 28: ...tning e damage caused by unauthorized attachments or modification or f any other abuse or misuse of the equipment 3 EXCLUSIVE WARRANTY THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARR...

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