Professional G Series Owner/Operator Manual 987 SERIES M O DELS 070 - Professional G 071 - Professional G 072 - Professional G 08468700C Rev.
A Message to Gravely Customers . . . Welcome to the world of Gravely equipment. We are pleased that you have purchased the best tractor available. The care you give your Gravely tractor will determine the satisfaction and service life you will obtain from it. Use this manual as your guide. By observing the instructions and suggestions in this manual, your Gravely tractor will serve you well for many years. and is ready and able to serve you.
Contents Models Safety Alert and Notations . . . . . . . . . . . . . . . . . . .i Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . .2 Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Controls and Features . . . . . . . . . . . . . . . . . . . . . .5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Lubrication and Maintenance . . . . . . . . . . . . . . . .9 Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Storage . . .
Safety Precautions Safe Operation Practices For Ride-On Mowers roadways or drives. Follow traffic laws when operating on or near a road. Failure to observe the following safety instructions could result in serious injury or death. Your complete and unimpaired attention is required at all times. Purchaser must give these instructions to the people operating and maintaining this tractor. Use extra care when loading or unloading the machine into a trailer or truck.
Safety Precautions (Continued) Children Never tamper with safety devices. Check their proper operation regularly. See page 7 for operatorpresence control check. If safety interlock is not functioning properly do not operate the tractor. Have repaired prior to use. Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the machine activity. Never assume that children will remain where you last saw them.
Safety Decals ALTERNATOR ELECTRICAL SYSTEM CAUTION 12 VOLT NEGATIVE GROUND D O N O T R E V E R S E B AT T E RY CONNECTIONS. DISCONNECT R E G U L ATO R W H E N W E L D I N G ON EQUIPMENT OR QUICK C H A R G I N G B AT T E RY. DO NOT OPERATE UNLESS ALL GUARDS, SHIELDS AND COVERS ARE IN PLACE PJ0330 Hydraulic Lift Models Manual Lift Models UP CONFORMS TO ANSI B71.4 SAFETY STANDARD COMMERCIAL TURF CARE EQUIPMENT. CONFORMS TO ANSI B71.4 SAFETY STANDARD COMMERCIAL TURF CARE EQUIPMENT.
Controls and Features 1 8 2 3 11 10 9 4 12 7 5 6 13 PJ0340 14 15 16 PJ0350 1. 2. 3. 4. 5. 6. 7. 8. Ammeter Throttle Control Choke Control Direction Control Pedal Gear Selector Range Selector PTO Control Warning Light (Oil Pressure) 9. 10. 11. 12. 13. 14. 15. 16.
Operation NOTE: Read the tractor and attachment(s) manuals before operating the equipment. Operate the tractor only from the operator’s position on the seat. Service the tractor and attachment before operating. N 1 FORWARD N REVERSE Gear Selector 4 3 2 Direction Control Pedal The direction control pedal controls the movement of the tractor. Push the pedal forward and lock over center to go forward. Push the pedal back to move the tractor backwards (Figure 1).
Operation NOTE: The light is activated when there is a loss of oil pressure. If the light comes on while operating the tractor, stop the tractor and engine as quickly as possible and check the engine oil level. To let an attachment follow the ground: • Move the switch to the “down” position. When the attachment reaches the ground, hold the switch in the “down” position for approximately 1/2 second before releasing the switch.
Operation (Continued) To stop the engine: • Move the throttle lever to “SLOW” and idle with the PTO control disengaged for approximately 15 seconds. the direction control pedal. If the operator leaves the seat with the direction control pedal in the “Forward” position, the engine will stop. • Turn the ignition switch of “OFF”. To move in a reverse direction: • Follow the first two steps above. • Remove the key before leaving the tractor. • Push down firmly on the bottom of the direction control pedal.
Lubrication and Maintenance Filling The Fuel Tank Never operate the engine when the oil level is below the low mark on the dipstick. See the engine manual for the type of oil, oil change, etc. Never operate the engine when the oil level is below the low mark on the dipstick. See the engine manual for air cleaner maintenance instructions. WARNING: Use caution with fuel. Fuel is very flammable. Keep fuel in a clean and tight container. Keep fuel away from fire or heat.
Lubrication and Maintenance (Continued) 4 3 5 1 2 1 PJ0370 1. 2. 3. 4. 5. 1. Grease Fitting on the Front Axle Figure 3: Steering Axle Pivot Checking the Engine Oil 3 PJ0380 Grease Fittings for the Steering Arms Grease Fittings for the Steering Columns Adjusting Bolt Lock Nut Adjusting Nut Figure 4: Steering Arms Check the engine oil level daily. Never operate the engine with the oil level below the low mark on the dipstick.
Lubrication and Maintenance (Continued) Checking the Fasteners Check the transmission oil level every 200 hours or twice a year, whichever comes first. If leakage is observed, check more frequently. The fill tube and check plug are shown in Figure 5. Every 25 hours, or any time looseness of parts, rattles, or excess noise and vibration are noted, check all fasteners. Look for loose or missing fasteners.
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 visibly worn or rough. MEASURE FREE TRAVEL HERE To adjust the brake: • Stop the tractor on a level surface.
Adjustments (Continued) • On 13.5 HP and 16 HP engine units, loosen the jam nuts on the tie rods and disconnect the outside ball joint. Rotate the front tires by hand so that the distance between the front centerline of the tire is 1/8” to 1/2” less than the Distance between the rear centerline. Adjust the tie rods so that the ball joint can be connected to the tie rod arm without moving the tire and so that the tie rods are the same length. Tighten the jam nuts.
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.
Storage Storing the Unit Taking the Unit Out of Storage • Do the daily and 25-hour maintenance, but do not add gasoline. • Refer to the engine manual and prepare the engine for service. • Clean the tractor. Paint or oil bare metal surfaces to prevent rust. • Charge the battery. • 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.
Trouble Shooting 1. No sound or motion when the ignition switch is turned to the “Start” position. 5. Engine continues to run when the ignition switch is rotated to the “Off” position. PTO control in the “On” position. Direction control pedal in the forward or reverse position. Blown fuse. Discharged battery. Starting solenoid damaged. Loose battery cable(s). Damaged time delay module. Ground wire not connected. Ignition switch failure. 6.
Specifications Model No. Description Name 987071 13.5 HP Robin Manual Lift 987072 20.5 HP Robin Hydraulic Lift 987070 16 HP Briggs & Stratton Hydraulic Lift Length Width Height Weight Wheelbase 82” (208.3 cm) 41.5” (105.4 cm) 51” (129.5 cm) 858 lbs. 82” (208.3 cm) 43.2” (109.7 cm) 51” (129.5 cm) 863 lbs. 82” (208.3 cm) 41.5” (105.4 cm) 51” (129.5 cm) 860 lbs.
Specifications (Continued) Ground Speeds (at 3600 rpm Engine Speed): TRACTOR GROUND SPEEDS FORWARD Gear "LO" Range 1 .5 mph (.8 km/hr) 2 .8 mph (1.2 km/hr) 3 1.1 mph (1.8 km/hr) 4 1.7 mph (2.7 km/hr) R EVERSE "HI" Range "LO" Range 2.5 mph (4.0 km/hr) 1.1 mph (1.8 km/hr) 3.8 mph (6.1 km/hr) 1.7 mph (2.7 km/hr) 5.7 mph (9.2 km/hr) 2.5 mph (4.0 km/hr) 8.5 mph (13.7 km/hr) 3.8 mph (6.
Attachments See your authorized Ariens dealer to add these additional attachments to your Tractor.
Accessories Enhance you Series G Tractor with these Gravely Accessories Mowing Accessories 78500800 78700200 78700300 78501300 78501400 78700400 78700500 78700600 78700700 40” Mower Drive Front Drive Kit Front Adapter Kit Front Anti-Scalp Roller Rear Anti-Scalp Roller Drive Kit For Kohler Engines Boot Kit For 40” Mower Boot Kit For 50” Mower Boot Kit For 60” Mower Garden Accessories 78701200 78700200 78700300 78503000 Liftable Rear Hitch Front Drive Kit Front Adapter Kit Attachment Adapter Kit Snow Remo
Index Accessories 20 Adjustments Adjusting the Brakes Adjusting the Forward and Reverse Clutches Adjusting the PTO Clutch Adjusting the Range Selector Adjusting the Seat Adjusting the Steering System Servicing the Hydraulic Left Servicing the Spark Plugs 12 12 12 12 14 14 13 13 13 Attachments 19 Controls and Features Lubrication and Maintenance Battery Service Changing the Air Cleaner Element Changing the Engine Oil Checking the Air Intake Screen Checking the Air Cleaner Checking the Air Cleaner Eleme
655 West Ryan Street • P.O.
