Toro GROUNDSMASTER 325-D User manual

Commercial Products
Troubleshooting Guide
Groundsmaster
345/325-D
Part No. 96904SL
®

INDEX
1. Product Overview GM 325-D/GM 345
2. Ford VSG-411 Gas Engine (GM 345)
3. Mitsubishi K3D Diesel Engine (GM 325-D)
4. Hydraulic Systems
Hydrostatic Drive Systems
5. Electrical Systems
6. Cutting Unit Drive
7. Cutting Units

TORO GM 345 / 325 - D Product Overview
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Product Overview
GM 300 series Groundsmaster
The Groundsmaster300 series mower is a medium size, maneuverable, commercial rotary with over twenty
years of mowing experience. During those years its design has been continuously improved for optimum
productivity and durability.
GM 345
Features
1. Ford 4 cylinder gas engine (45hp).
2. Sunstrand series M15 inline variable speed hydrostatic drive.
3. Hydraulic power steering and lift functions
4. Available in 2wd.
GM 325-D
Features
1. Mitsubishi 3 cylinder diesel engine (25hp).
2. Sunstrand series M15 inline variable speed hydrostatic drive.
3. Hydraulic power steering and lift functions
4. Available in 2wd and 4wd versions
Options
1. Speed control.
2. 2-Post roll-over Protective Structure (ROPS).
3. 4-Post ROPS with sun roof.
4. Cab with ROPS.
5. Deluxe Seat

Product Overview TORO GM 345
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TORO GM 345 / 325 - D Product Overview
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Attachments
1. 72” Side discharge mower deck.
2. 72” Rear discharge mower deck.
3. 72” GuardianRecyclerdeck.
4. 88” Triflexmower deck.
5. 48” Snowblower
6. Debris blower
7. Aerator
8. Plug pulverizer
9. Aero-seeder
10. V-Plow
11. Flail Mower

Ford VSG-411 Gas Engine TORO GM 345
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TORO GM 345 Ford VSG-411 Gas Engine
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In this section we will look at some troubleshooting procedures for the Ford Gas Engine.
Engine Identification
The engine is identified with a decal affixed to the left side of the valve cover.
The decal contains the engine serial number.
The model number and displacement. ( i.e. 411 = 4 cyl 1.1 liter)
The special options (S.O.) number.
The engine is also stamped on the left rear top edge of the block.
This stamping includes:
A - Serial number.
B - Engine Code.
C - Engine build code: (Example 4K26)
• The first number indicates the year.
• The letter indicates the month in alphabetical sequence. ( A January, B February, etc.)
• The last two numbers are the day of the month.
Complaint: Low engine power
Affect:
1. Poor cutting unit performance.
2. Poor hill climbing ability.
3. Slow hydraulic response.
4. Slow throttle response.
5. Rough running engine.
Cause:
1. Incorrect engine idle settings. 5. Cracked or bad spark plugs.
2. Misadjusted carburetor linkage. 6. Cracked or broken plug wires.
3. Governor adjustments. 7. Plugged or restricted air filter.
4. Internal engine problem. 8. Spoiled Fuel.

Ford VSG-411 Gas Engine TORO GM 345
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TORO GM 345 Ford VSG-411 Gas Engine
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Troubleshooting:
High and Low Idle Checks.
The idle settings are important for the proper operation and long life of the machine.
Affects of incorrect idle speeds:
1. High idle too slow:
• Low power. (engine not running at full speed)
• Slow transport speed. (hydrostatic transmission input shaft speed too slow)
• Poor Quality of cut. (Blade RPM and tip speed too slow)
2. High idle too fast:
• Internal engine damage. (Excessive engine RPM can damage crankshaft and bearings)
• Hydrostatic transmission damage. (insufficient lubrication for high input shaft speeds)
• Engine overheating.
3. Low idle too slow:
• Hydrostatic transmission damage.(lack of lubrication)
Checking Idle Speeds
1. Run the engine until it reaches normal operating temperature.
2. Move the throttle lever to the low idle position.
• Low idle should be 1500 ± 100.
3. Open the throttle to the high idle position.
• High idle should be 3200 ± 100.
NOTE: If high or low idle is incorrect, refer to the Operators manual for correct adjustment procedures.

Ford VSG-411 Gas Engine TORO GM 345
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