Toro groundsmaster 455-D Operator'S Manual Download Page 22

cutting unit and raise it by pulling back on the cutting
unit lift control levers. Hold the levers back until the
cutting unit is fully raised. 

Never raise the cutting deck

when it is engaged

. Lock the cutting unit in place with

transport latches. Move the axle shift lever forward to
HI. When driving from one area to another, always shift
the axle to LO before encountering a slope. Never shift
from HI to LO while on a slope. Stop the machine on a
flat surface, engage the brakes and shift before climbing
the slope. Be careful when driving between objects so
you do not accidentally damage the machine or the
cutting unit.

Use extra care when operating the machine on
slopes. Drive slowly and avoid sharp turns on slopes
to prevent rollovers. The cutting unit must be
lowered when going downhill for steering control. 

We recommend you use protective equipment, such as
protective equipment for eyes, ears, feet and head. 

1.

Caution

2.

Wear hearing protection

Pushing Or Towing The Traction Unit

—Use only a

rigid tow bar if it becomes necessary to tow the
machine. Make sure the axle shift lever is in NEUTRAL
position and only tow the machine forward. Use trailer
for normal transport. Move the axle shift lever to LO
position before loading the machine on a trailer.

Operating Tips

Mow When Grass Is Dry

—Mow either in the late

morning to avoid the dew, which causes grass clumping
or in late afternoon to avoid the damage that can be
caused by direct sunlight on the sensitive, freshly
mowed grass.

Select the Proper Height-of-cut Setting To Suit
Conditions

—Remove approximately 2.5 cm (one inch)

or no more than 1/3 of the grass blade when cutting.  In
exceptionally lush and dense grass you may have to
raise your height-of-cut setting another notch. 

Mowing In Extreme Conditions

—Air is required to

cut and re-cut grass clippings in the mower housing, so
do not set the height-of-cut too low or totally surround
the housing by uncut grass. Try to have one side of the
mower housing free from uncut grass, allowing air to be
drawn into housing. When making an initial cut through
the center of an uncut area, operate the machine slower
and back up if the mower starts to clog.

Clippings Discharge

—Although the deck has rear

discharge, some clippings are discharged toward the left
side. To avoid discharging undesirable clippings onto
pathways, roads, or other non-turf surfaces, mow with
the right side of the deck next to the pathway, road, or
other non-turf surface

Mow At Proper Intervals

—Under most normal

conditions you’ll need to mow every 4–5 days. But
remember, grass grows at different rates at different
times. This means that to maintain the same height of
cut—which is a good practice—you’ll need to cut more
often in early spring; as the grass growth rate slows in
mid summer, cut it only every 8–10 days. If you’re
unable to mow for an extended period, mow first with
the height-of-cut at a high level; then mow again 2–3
days later with a lower height setting.

Always Mow With Sharp Blades

—A sharp blade cuts

cleanly and without tearing or shredding the grass
blades. Tearing and shredding causes the grass to turn
brown at the edges which impairs growth and increases
susceptibility to diseases. 

After Operating—

To assure optimum performance,

clean the underside of the mower housings and under
the belt covers after each use.  Use low pressure
compressed air only.  Do not use water.  If residue is
allowed to build up in the mower housings, cutting
performance will decrease.

21

This machine produces sound levels in excess of 85
dBA at the operator’s ear and can cause hearing loss
through long periods of exposure.  

Wear hearing protection when operating this machine.

CAUTION

Summary of Contents for groundsmaster 455-D

Page 1: ...OPERATOR S MANUAL MODEL NO 30450 210000001 UP MODEL NO 30455TC 210000001 UP GROUNDSMASTER 455 D The Toro Company 2000 3325 366 Rev A...

Page 2: ...Engine Oil and Filter 28 Fuel System 28 Engine Cooling System 29 Engine Timing Belt 30 Changing Hydraulic Oil 30 Replacing The Hydraulic Filter 31 Checking Hydraulic Lines and Hoses 32 Hydraulic Syst...

Page 3: ...e regulations 6 Assure interlock switches are adjusted correctly so engine cannot be started unless traction pedal is in NEUTRAL and cutting unit is DISENGAGED 7 Remove all debris or other objects tha...

Page 4: ...to thrown object injuries Do not resume mowing until area is cleared 22 Do not touch engine muffler or exhaust pipe while 3 engine is running or soon after it is stopped These areas could be hot enoug...

Page 5: ...he time of manufacture the machine conformed to the safety standards for riding mower Ballast weight mounted to rear of traction unit is required for machine to conform to safety standard DO NOT remov...

Page 6: ...ion Dismember ment front engine mowerin rearward motion Severing of fingers or hand engine fan Whole body entanglement implement input drive line Fingers or hand entangle ment chain drive Hand arm ent...

Page 7: ...Minus decrease negative polarity Horn Battery charging condition Hourmeter elapsed operating hours Fast Slow Continuous variable linear Volume empty Volume full Machine travel direction forward rearw...

Page 8: ...ure Hydraulic oil failure malfunction Fuel level Parking brake Fuel Fuel filter Fuel system failure malfunction Lock Unlock Differential lock 4 Wheel drive Power Take Off Diesel fuel Unleaded fuel Hea...

Page 9: ...eight Diagnostic System Test ports for forward and reverse traction 2 wheel drive front and rear axle motors 4 wheel drive lift and counterbalance circuit steering circuit and charge circuit 8 Steerin...

Page 10: ...t 190 5 cm 75 in Mowing 323 cm 127 in Height 147 cm 58 in With rollover protection system installed 208 cm 82 in Wheel Tread Front 129 5 cm 51 in Rear 104 cm 41 in Wheel Base 142 cm 56 in Wheel Tread...

Page 11: ...f the system is 13 2 liters 3 5 gal 1 Park the machine on a level surface Release the hood latch and open the hood 2 Check the coolant level The coolant level should be up to or above the mounting tab...

Page 12: ...1000 Fluid Chevron Tractor Hydraulic Fluid Conoco Hydroclear Powertran Esso Hydraul Gulf Universal Tractor Fluid Kendall Hyken 052 Marathon Marafluid Super HT Pennzoil Hydra trans Phillips HG Fluid Sh...

Page 13: ...the oil level by viewing the sight gauge If oil is visible in the gauge the oil level is sufficient 2 If the oil level is not visible in the gauge remove the cap from the hydraulic oil reservoir and...

Page 14: ...cant to bring the level up to the bottom of the check plug holes Figure 8 1 Vent fill plug 2 Check plug 3 Figure 9 1 Check fill plug Check Bi Directional Clutch Lubricant Model 30455 Only Fig 10 The B...

Page 15: ...h lubricant to bring it up to the bottom of the hole inside Figure 11 1 Filler plug pressure relief valve 2 Check plug Adjusting the Height Of Cut The height of cut is adjustable from 2 5 12 7 cm 1 to...

Page 16: ...irpin cotter and height of cut pin securing the rear castor pivot arm to the deck bracket Figure 13 1 Rear castor pivot 2 Align the pivot arm holes with selected height of cut bracket holes in the dec...

Page 17: ...ection when the wing units are raised Check to make sure the forward lower edge of door is even or 6 mm 1 4 in higher then lower edge of door guide when wing decks are in the fully raised transport po...

Page 18: ...raise and lower the wing cutting units The center lever raises and lowers the whole cutting unit The engine must be running to lower the cutting unit When wing cutting units are raised higher than 15...

Page 19: ...iddle position N is for towing IMPORTANT On model 30455 the lever must be in LO to operate in 4 wheel drive CAUTION The machine must be on a flat surface and the brakes engaged when shifting the axle...

Page 20: ...separator bleed screw Fig 21 a few turns Pump the priming plunger until a steady stream of fuel comes out of the hole in the bleed screw When fuel stops foaming tighten the bleed screw during the dow...

Page 21: ...slipping thus increasing traction on the downhill wheel Warning System If a warning light comes on during operation stop the machine immediately and correct the problem before continuing operation Ser...

Page 22: ...r notch Mowing In Extreme Conditions Air is required to cut and re cut grass clippings in the mower housing so do not set the height of cut too low or totally surround the housing by uncut grass Try t...

Page 23: ...filter Check front transaxle oil level Check rear axle oil level 4 wheel drive Inspect fuel lines and connections Check engine rpm idle and full throttle Inspect PTO and cutting unit belts Check elect...

Page 24: ...een 9 Air filter service indicator 10 Water separator fuel filter 11 Battery 12 Fan belt 13 Tire pressure CHECK FILL Engine oil Hydraulic circuit oil Axle oil Fuel filter Primary air filter Safety air...

Page 25: ...pivot 1 brake pivots 2 Fig 24 traction pedal pivot 1 Fig 25 engine to pump drive shaft 2 Fig 26 27 traction adjuster 1 Fig 28 P T O Bearing Fig 29 2 Wheel drive machines only cylinder end 2 center pi...

Page 26: ...25 Figure 30 Figure 29 Figure 31 Figure 27 Figure 26 Figure 28...

Page 27: ...26 Figure 32 Fig 34 Fig 33 Fig 36 Fig 37 Fig 35...

Page 28: ...leaner body Do not remove the safety filter Figure 39 1 Air cleaner latches 2 Dust cup Figure 40 1 Air cleaner primary filter 3 Inspect the primary filter and discard if damaged Do not wash or reuse a...

Page 29: ...with the TOP side up 8 Reset the indicator Fig 38 if it is still showing red Engine Oil and Filter Change the oil and filter initially after the first 50 hours of operation thereafter change the oil...

Page 30: ...hichever comes first 1 Unscrew the bottom filter cap from the filter assembly Remove the cap gaskets O ring and filter from the assembly Note the position of the gaskets and O ring when disassembling...

Page 31: ...the alternator mounting bolts Adjust alternator belt tension by adjusting the tension screw Check deflection of the belt again to assure tension is correct Figure 46 1 Fan belt 2 Adjusting screw Engin...

Page 32: ...re 48 1 Sight gauge Replacing the Hydraulic Filter Initially change the filter after the first 50 operating hours thereafter every 800 operating hours or annually whichever comes first Only the Toro r...

Page 33: ...alance normal setting is approximately 4 100 4 400 kPa 600 650 psi high idle and when oil is warm 4 Lift circuit relief pressure is approximately 17 900 19 300 kPa 2600 2800 psi when oil is warm 5 The...

Page 34: ...urning 5 Tighten the locknut locking adjustment 6 Stop the engine and release the right brake Remove the jack stands and lower the machine to the shop floor Test drive the machine to make sure it does...

Page 35: ...ry 800 hours of operation the oil in the clutch housing must be changed 1 Position the machine on a level surface 2 Remove the drain plug from the clutch housing allowing fluid to drain into a drain p...

Page 36: ...when the brakes do not work effectively Free travel is the distance the brake pedal moves before braking resistance is felt 1 To reduce free travel of the brake pedals tighten the nut on the brake ro...

Page 37: ...ance at each of the three slots to ensure the plates are parallel to each other Figure 63 1 Clutch 2 Flange studs Battery Care IMPORTANT Before welding on the machine disconnect the ground cable from...

Page 38: ...ve shaft yoke 2 Gear box input shaft 7 Sit on the seat start the engine and slowly raise the center cutting unit allowing the cutting unit to pivot upright Stop the engine and remove the key from the...

Page 39: ...r arm 3 Ball joint mount 4 Capscrews washers 6 Roll the cutting unit away from the traction unit 38 Alternate Method 1 Lower the center and wing cutting units to the ground set the parking brake and s...

Page 40: ...proceed as follows 1 Loosen the jam nuts securing the ball joints to a threaded rod Figure 69 1 Safety door 2 Door guide 3 Ball joint 39 2 Rotate the threaded rod to raise or lower the edge of the do...

Page 41: ...3 Loosen the 2 flange head nuts securing the idler adjustor tube to top of the cutting deck 4 Loosen the jam nut on the adjusting screw and turn the screw until the black plastic sleeve is flush even...

Page 42: ...upport and remove the cover 41 8 Remove the capscrews and nuts securing the front of the gear box support to the deck channels and loosen the capscrews securing the rear of the gear box support to the...

Page 43: ...the bushings bushings are worn and must be replaced 1 Raise the cutting unit so the wheels are off the floor and block it so that it cannot fall accidentally 2 Remove the height of cut cap and spacer...

Page 44: ...ust be replaced if a solid object is hit the blade is out of balance or if the blade is bent Always use genuine TORO replacement blades to be sure of safety and optimum performance Never use replaceme...

Page 45: ...f they are dull or nicked Sharpen only the top of the cutting edge and maintain the original cutting angle to make sure of sharpness Fig 83 The blade will remain balanced if same amount of metal is re...

Page 46: ...the oil pan with 5 l of SAE15W 40 CD motor oil 4 Start the engine and run at idle speed for approximately two minutes 5 Stop the engine 45 6 Flush the fuel tank with fresh clean diesel fuel 7 Resecure...

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