WELCOME Congratulations on your purchase and welcome to the Gravely family! Every machine in the Gravely lineup is designed for long-lasting and unsurpassed performance. We are confident your machine will be part of your family for many years to come.
SAFETY WARNING: AVOID INJURY. This cutting machine is capable of amputating body parts and Read these safety rules and follow them throwing objects. Failure to closely. Failure to follow these rules could observe the safety instructions in lead to loss of control of unit, severe personal the manuals and on decals injury or death to you or bystanders, or result could result in serious injury or...
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4. Notice NOTICE: Indicates information or procedures Keep children and others that are considered important but not hazard away from unit while unit is related. If not followed, property damage in operation. could result. 5. Important IMPORTANT: Indicates general reference NEVER direct discharge information worthy of special attention.
MAX. FILL Stop engine, remove key, and read manual before Fill fuel tank to bottom of servicing or making filler neck – MAXIMUM. adjustments to unit. 5. HOT SURFACES! Keep children and others away from unit while unit is in operation. DO NOT touch parts which are hot from operation.
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All operators and mechanics should be Personal Protection trained. The owner is responsible for training ALWAYS wear appropriate clothing including the users. hard hat, protective gloves, safety glasses NEVER let children or untrained people and hearing protection. Long hair, loose operate or service the equipment.
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NEVER tamper with safety devices. Check Be aware of the mower discharge direction their proper operation regularly. and DO NOT point it at anyone. NEVER direct discharged material toward anyone. Keep machine free of grass, leaves, or other Avoid discharging material against a wall or debris build-up.
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Use extra care while operating machine with Operating Conditions grass catchers or other attachments; they Lightning can cause severe injury or death. can affect the stability of the machine. Do If lightning is seen or thunder is heard in the not use on steep slopes.
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Use only an approved fuel container. Towing NEVER store the machine or fuel container DO NOT attach towed equipment or where there is an open flame, spark, or pilot accessories, other than a sulky.This vehicle light such as on a water or space heater or is not designed to tow anything other than other appliances.
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Service Transporting Unit The use of non-genuine replacement parts Use care when loading or unloading the or accessories could adversely affect machine into a trailer or truck. machine operation and safety. Use full-width ramps for loading machine DO NOT change engine governor setting or into trailer or truck.
ASSEMBLY WARNING: Read and understand the Safety section before proceeding. 1. Remove packaging materials from unit. 2. Remove unit from shipping container. See Move Unit Manually on page 17. 3. Cut packaging ties and discard. 4. Lift discharge chute up slightly and rotate to operating position.
CONTROLS & FEATURES Model 988171 Figure 4 1. Ignition Key 14. Air Filter 2. Choke Control Knob 15. Deck Lift Lever 3. Throttle Control Lever 16. Height-of-Cut Adjustment System 4. Power Take-off (PTO) Switch 17. Flip-up Discharge Chute 5. Drive Control Grip 18.
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Models 988172, 988173, 988174 Figure 5 1. Ignition Key 14. Air Filter 2. Choke Control Knob 15. Deck Lift Lever 3. Throttle Control Lever 16. Height-of-Cut Adjustment System 4. Power Take-off (PTO) Switch 17. Flip-up Discharge Chute 5. Drive Control Grip 18.
THROTTLE CONTROL LEVER WARNING: AVOID INJURY. See Figure 8. Read and understand the Safety Controls engine speed. section before proceeding. Fast See Figure 4 and Figure 5 for all controls and features locations. IGNITION KEY See Figure 6. Controls power to the engine. The key cannot be removed when in on position.
DRIVE CONTROL GRIP HEIGHT-OF-CUT ADJUSTMENT SYSTEM See Figure 11. Controls the forward and reverse movement See Figure 13. and wheel speed of the unit. Sets the height of cut. Forward Reverse Figure 11 Figure 13 DECK LIFT LEVER PARKING BRAKE LEVER See Figure 12.
8. Check function of the Safety Interlock individual jobs, service alerts, and System by performing the tests below. recommended service intervals. Contact your Gravely dealer for repair if STEERING-LOCK LEVER any of the tests fail. Locks the steering feature for continual TEST SAFETY INTERLOCK straight-line operation.
START THE ENGINE 1. Place drive control grip in the neutral position. 2. Engage parking brake. 3. Push PTO switch down to off position. IMPORTANT: All three starting indicator lights will illuminate when steps 1 – 3 are complete. 4. If engine is cold, pull choke knob up to the on position.
OPERATE IN EXTENDED WARNING: AVOID INJURY. If STRAIGHT LINE the drive control grip does not See Figure 17. fully return to neutral upon release from reverse position, Steering can be locked for extended periods stop and repair drive control of straight-line operation. Move steering-lock before operating mower.
Proper maintenance can prolong the life of unit. The Maintenance Schedule on Page 19 shows the recommended service schedule. Your Gravely dealer can provide service and Bypass Position adjustments to keep your unit operating at (Transaxles peak efficiency. Contact an authorized engine Disengaged) manufacturer’s service center for engine...
HOUR METER MAINTENANCE SCHEDULE See Figure 20. Timer measures engine runtime and cannot be reset. When the key is in the on position, the Timer mode displays. Press the Mode button to toggle between different modes. Service Performed Timer: Measures engine runtime until reset. Check Safety •...
SERVICE PARTS CHECK HYDRAULIC SYSTEM See your Gravely dealer to purchase service Check Hydraulic Oil Level parts for your unit. See Figure 21. Description Qty. Part No. 1. Place unit in service position. See Service Position on page 18. Air Filter 21548000 2.
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9. Reinstall filter guard and torque to 7.3 N•m (65 lb-in). DO NOT overtighten. 10. Add 15W-50 synthetic motor oil (Gravely p/n 00057100) or equivalent until oil appears at the bottom of the vent port (approximately 1893 mL (64 fl. ounces) per transaxle).
CHECK TIRE PRESSURE Remove Blades 1. Place unit in service position. See Check tire pressures and inflate to Service Position on page 18. recommendation. See Specifications on page 39. 2. Disconnect spark plug wires. See Figure 24. WARNING: AVOID INJURY. 3.
CHECK PARKING BRAKE DO NOT sharpen to IMPORTANT: Check parking brake on both this pattern. sides of unit. 1. Place unit in service position. See Service Position on page 18. 2. Bypass transaxles. See Move Unit Manually on page 17. 3.
5. Charge battery following battery manufacturer’s instructions. 6. Reinstall battery. See Install Battery on page 24. Jump Starting Gravely does not recommend jump starting your unit. Jump-starting can damage engine and system components. Refer to engine manual for details. CHECK FASTENERS Check for loose hardware and tighten if necessary.
IMPORTANT: After tightening bolt, tire should Replace Fuse not have any side-to-side play. Tighten bolt NOTICE: To avoid damaging the circuit, until there is a slight amount of drag on the replace fuses with fuses of the same wheel bearing. The wheel should not spin amperage rating.
ADJUST UNIT TO DRIVE See Figure 32. STRAIGHT 5. Adjust steering lock: • If unit moves to the left when steering- If unit does not drive straight when steering- lock lever is engaged, loosen outer-left lock lever is engaged, adjustments may be and inner-right jam nuts.
ADJUST PARKING BRAKE CABLE If parking brake lever does not engage parking brake shaft, brake cable may need adjustment. See Figure 35. 1. Upper Jam Nut 2. Lower Jam Nut 1. Parking Brake Shaft 3. Rubber Boot Figure 35 Figure 33 1.
ADJUST PARKING BRAKE REPLACE PTO BELT IMPORTANT: Adjust parking brake on both CAUTION: Damaged or worn sides of unit. belts may result in injury and / or 1. Check parking brake. See Check Parking damage to the unit. Check belts Brake on page 23.
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Install PTO Belt Model 988171 1. Install PTO belt around clutch sheave at rear of unit. See Figure 41 and Figure 42. 2. Route PTO belt around spindle pulleys. 3. Align belt with idler pulleys. Model 988171 1. Spring 2. Support Bracket 3.
2. Remove wing knobs retaining access Model 988171 cover and remove cover. See Figure 38. 3. Remove hardware retaining clutch stop bracket and J-clamp and remove bracket. See Figure 45. Figure 43 Models 988172, 988173, 988174 Figure 45 4. Under unit, slowly remove spring hook from anchor bolt to release transaxle idler belt tension.
1. Lift-Assist Spring Figure 50 2. Spring Anchor Figure 51 REMOVE / INSTALL MOWER DECK 7. Remove hardware retaining deck lift links to deck. See Figure 52 and Figure Remove Deck 1. Place unit in service position. See Model 988171 Service Position on page 18.
Models 988172, 988173, 988174 Figure 55 Figure 53 6. Reinstall PTO belt onto clutch. See Install PTO Belt on page 29. 8. Remove hardware retaining deck mounting pins and remove pins. See 7. Level the deck. See Level and Pitch Figure 54.
See Figure 57. See Figure 59. 5. Position mower blades so ends point 5. Position mower blades so ends point front to back and measure the following: front to back and measure the following: • At the front of the deck, measure the •...
e. Tighten jam nuts against deck- Raise leveling links. ADJUST CLUTCH Lower See Figure 61. NOTICE: Adjust clutch every 500 hours or once per season if used less than 500 hours. If clutch operates incorrectly or sounds abnormal, check the gap at the three inspection slots.
Check safety interlock system. See engaged or is faulty. Test Safety Interlock System on page 15. Electrical system is faulty. Contact your Gravely dealer. Engine is faulty. Contact your Gravely dealer. Choke control knob is in on Move knob to off position.
Replace Transaxle Drive Belt on page 30. Transaxles are faulty. Contact your Gravely dealer. Transaxle drive system is faulty. Contact your Gravely dealer. Hydraulic oil level is low. Add hydraulic oil. See Check Hydraulic System on page 20. PTO belt is faulty.
SHORT-TERM STORAGE ACCESSORIES IMPORTANT: NEVER wash unit with high- pressure water or store outdoors. See your Gravely dealer for a complete list of 1. Allow unit to cool and clean with mild compatible accessories and attachments for soap and water.
Equipment Limited Warranty Warranty Ariens Company (Ariens) warrants to the original purchaser that Ariens, Gravely and Countax brand products purchased on or after 9/1/2017 and designated or labeled commercial products by Ariens Company will be free from defects in material and workmanship for the time period noted in the chart below.
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Exclusions – Items Not Covered by This Warranty • Parts that are not genuine Ariens, Gravely or Countax service parts are not covered by this warranty and may void the warranty. • Damages resulting from the installation or use of any part, accessory, or attachment which is not approved by the Ariens Company for use with product(s) identified herein are not covered by this warranty.
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• Products are designed to the specifications in the area that the product was originally distributed. Different areas may have significantly different legal and design requirements. This warranty is limited to the requirements in the area in which the unit was originally distributed.
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655 West Ryan Street Brillion, WI 54110 gravelymower.com gravely.custhelp.com...
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