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Professional G Series
Owner/Operator Manual
987 987 987
SERIES SERIES SERIES
MODELS
070 - Professional G
071 - Professional G
072 - Professional G
08468700C Rev. 2/99
Supercedes 08468700,A,B
Printed in USA
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A Message to Gravely Customers . . . Welcome to the world of Gravely equipment. We are and is ready and able to serve you. If service is pleased that you have purchased the best tractor required, be prepared to supply the service person available. The care you give your Gravely tractor will with the Model and Serial Number of the tractor, as determine the satisfaction and service life you will well as a full description of the problem encountered. obtain from it. Use this manual as your guide. B
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Contents Models Safety Alert and Notations . . . . . . . . . . . . . . . . . . .i Model 987070 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . .2 16 HP Briggs & Stratton, Hydraulic Lift Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Controls and Features . . . . . . . . . . . . . . . . . . . . . .5 Model 987071 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 13.5 HP Robin, Manual Lift Lubrication and Maintenance . . . . . . . .
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Safety Precautions roadways or drives. Follow traffic laws when Safe Operation Practices For Ride-On operating on or near a road. Mowers Use extra care when loading or unloading the Failure to observe the following safety instructions machine into a trailer or truck. When handling could result in serious injury or death. Your complete equipment connect the chassis to the transporting and unimpaired attention is required at all times. vehicle. Never connect from control levers, rods, or Purchaser
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Safety Precautions (Continued) Never tamper with safety devices. Check their proper Children operation regularly. See page 7 for operator- Tragic accidents can occur if the operator is not alert presence control check. If safety interlock is not to the presence of children. Children are often functioning properly do not operate the tractor. Have attracted to the machine activity. Never assume that repaired prior to use. children will remain where you last saw them. Keep machine free of grass, le
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Safety Decals ALTERNATOR ELECTRICAL SYSTEM CAUTION 12 VOLT NEGATIVE GROUND DO NOT REVERSE BATTERY DO NOT OPERATE UNLESS CONNECTIONS. DISCONNECT REGULATOR WHEN WELDING ALL GUARDS, SHIELDS AND ON EQUIPMENT OR QUICK COVERS ARE IN PLACE CHARGING BATTERY. PJ0330 Hydraulic Lift Models Manual Lift Models UP CONFORMS TO ANSI B71.4 SAFETY CONFORMS TO ANSI B71.4 SAFETY STANDARD COMMERCIAL TURF CARE N HOLD STANDARD COMMERCIAL TURF CARE EQUIPMENT. EQUIPMENT. DOWN SAFETY FIRST DIRECTION SAFETY FIRST DIRECTIO
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Controls and Features 1 8 2 3 11 10 9 12 4 6 5 7 13 PJ0340 14 15 16 PJ0350 1. Ammeter 9. Hourmeter (side of panel) 2. Throttle Control 10. Attachment Lift Switch 3. Choke Control 11. Ignition Switch 4. Direction Control Pedal 12. Brake Pedal 5. Gear Selector 13. Brake Lock Lever 6. Range Selector 14. Release Button 7. PTO Control 15. Manual Lift Lever 8. Warning Light (Oil Pressure) 16. Lift Range Control Figure 1: Control and Feature Locations 5
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Operation NOTE: Read the tractor and attachment(s) manuals 4 3 Gear Selector before operating the equipment. Operate the tractor The gear selector has four operating N only from the operator’s position on the seat. Service positions (Figure 1). See specifications for the tractor and attachment before operating. ground speeds produced in each gear. 1 2 FORWARD Direction Control Pedal The direction control pedal controls the Attachment Lift Switch UP N movement of the tractor. Push the pedal (Hydr
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Operation NOTE: The light is activated when there is a loss of To let an attachment follow the ground: oil pressure. If the light comes on while operating the • Move the switch to the “down” position. When the tractor, stop the tractor and engine as quickly as attachment reaches the ground, hold the switch in possible and check the engine oil level. the “down” position for approximately 1/2 second before releasing the switch. To check to see if the light is operating correctly, turn the ignit
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Operation (Continued) To stop the engine: the direction control pedal. If the operator leaves the • Move the throttle lever to “SLOW” and idle with the seat with the direction control pedal in the “Forward” PTO control disengaged for approximately 15 position, the engine will stop. seconds. To move in a reverse direction: • Turn the ignition switch of “OFF”. • Follow the first two steps above. • Remove the key before leaving the tractor. • Push down firmly on the bottom of the direction control
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Lubrication and Maintenance Never operate the engine when the oil level is below Filling The Fuel Tank the low mark on the dipstick. See the engine manual for the type of oil, oil change, etc. Never operate the WARNING: Use caution with fuel. Fuel engine when the oil level is below the low mark on is very flammable. Keep fuel in a clean the dipstick. See the engine manual for air cleaner and tight container. Keep fuel away maintenance instructions. from fire or heat. Never put fuel in the fuel t
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Lubrication and Maintenance (Continued) 3 5 4 1 2 1 3 PJ0380 PJ0370 1. Grease Fittings for the Steering Arms 1. Grease Fitting on the Front Axle 2. Grease Fittings for the Steering Columns 3. Adjusting Bolt Figure 3: Steering Axle Pivot 4. Lock Nut 5. Adjusting Nut Checking the Engine Oil Figure 4: Steering Arms Check the engine oil level daily. Never operate the • Clean the areas around the dipstick and engine with the oil level below the low mark on the drain plug. dipstick. See your engine m
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Lubrication and Maintenance (Continued) Check the transmission oil level every 200 hours or Checking the Fasteners twice a year, whichever comes first. If leakage is Every 25 hours, or any time looseness of parts, observed, check more frequently. The fill tube and rattles, or excess noise and vibration are noted, check plug are shown in Figure 5. check all fasteners. Look for loose or missing fasteners. Make sure all bolts, screws, nuts, pins, To check the transmission oil level: snap rings, and
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Adjustments Adjusting the Brakes Brake service is required if the brake does not stop and hold the tractor effectively. The brake should be effective enough to cause the rear wheels to slide if applied suddenly on a concrete or asphalt surface. CAUTION: Replace the brake band when the lining is as thin as the ignition key. Replace the brake drum if it is MEASURE FREE TRAVEL HERE visibly worn or rough. To adjust the brake: • Stop the tractor on a level surface. CLEARANCE • Stop the engine and blo
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Adjustments (Continued) • Turn the control rod to change the free travel. Each • On 13.5 HP and 16 HP engine units, loosen the turn will change it by about .25 inch. Turn clockwise jam nuts on the tie rods and disconnect the outside to increase and counterclockwise to decrease the ball joint. Rotate the front tires by hand so that the free travel. distance between the front centerline of the tire is 1/8” to 1/2” less than the Distance between the rear • Reconnect the control rod to the trans
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Adjustments (Continued) Adjusting the Range Selector • Move the Hi-Lo shift lever as far as it will go in both directions. Measure the distance between the lever and the end of the slot. This distance should not be less than 5/16”. • Adjust the clevis so that the clearance between the Hi-Lo shift lever and the control cover plate slot is equal for both positions of the lever. Adjusting the Seat The seat has 4” of front-to-rear adjustment. To adjust the seat, pull the adjustment lever out an
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Storage Storing the Unit Taking the Unit Out of Storage • Do the daily and 25-hour maintenance, but do not • Refer to the engine manual and prepare the engine add gasoline. for service. • Clean the tractor. Paint or oil bare metal surfaces • Charge the battery. to prevent rust. • Put fresh, clean gasoline in the fuel tank. NOTE: Do not use harsh or abrasive cleaners on any painted surface. Do not allow gasoline or oil to remain on any silk screened surface. • Refer to the engine manual and prepa
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Trouble Shooting 1. No sound or motion when the ignition switch 5. Engine continues to run when the ignition is turned to the “Start” position. switch is rotated to the “Off” position. PTO control in the “On” position. Ground wire not connected. Direction control pedal in the forward or reverse Ignition switch failure. position. Blown fuse. 6. Lights do not come on when the light switch Discharged battery. is moved to the “ON” position. Starting solenoid damaged. Loose battery cable(s). Light(
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Specifications Model No. 987071 987072 987070 Description Name 13.5 HP Robin 20.5 HP Robin 16 HP Briggs & Stratton Manual Lift Hydraulic Lift Hydraulic Lift Length 82” (208.3 cm) 82” (208.3 cm) 82” (208.3 cm) Width 41.5” (105.4 cm) 43.2” (109.7 cm) 41.5” (105.4 cm) Height 51” (129.5 cm) 51” (129.5 cm) 51” (129.5 cm) Weight 858 lbs. 863 lbs. 860 lbs. Wheelbase Battery 12 Volt BCI Group 12 Volt BCI Group 12 Volt BCI Group 22F, 42 AMP Hr 22F, 42 AMP Hr 22F, 42 AMP Hr Brakes External Band Brake Exte
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Specifications (Continued) Ground Speeds (at 3600 rpm Engine Speed): TRACTOR GROUND SPEEDS FORWARD REVERSE Gear "LO" Range "HI" Range "LO" Range "HI" Range 1 .5 mph (.8 km/hr) 2.5 mph (4.0 km/hr) 1.1 mph (1.8 km/hr) Same 2 .8 mph (1.2 km/hr) 3.8 mph (6.1 km/hr) 1.7 mph (2.7 km/hr) Same 3 1.1 mph (1.8 km/hr) 5.7 mph (9.2 km/hr) 2.5 mph (4.0 km/hr) Same 4 1.7 mph (2.7 km/hr) 8.5 mph (13.7 km/hr)
