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Gravely 988153, Owner'S/Operator'S Manual

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Gravely 988153 Owner'S/Operator'S Manual Download Page 49

GB - 49

Machine

TROUBLESHOOTING

Problem

Probable Cause

Excessive Machine Vibration

Engine speed too slow.

Deck drive belts worn or damaged.

Pump drive belt worn or damaged.
Dirt or debris on drive sheaves.

Loose or damaged electric PTO or drive sheave.

Bent or damaged cutting blades.

Unit Will Not Move With Engine 
Running

Parking brake engaged.
Hydraulic oil level low.

Hydraulic oil cold – allow engine to warm.

Pump drive belt slipping.
Pump bypass valves open. 

See MOVING THE UNIT 

MANUALLY on page 20.

Pump drive belt damaged or worn.

Wheel motor problems. See your Gravely dealer.

Unit Creeps With Engine 
Running and Control Levers in a 
Neutral Position

Needs control linkage adjustment. 

See ADJUSTING 

PUMP NEUTRAL POSITION on page 26.

ACCESSORIES

Part No.

Description

79260500

36-in. Mulch Kit (988153, 56)

79260000

48-in. Mulch Kit (988154, 57)

79260400

52-in. Mulch Kit (988155, 58)

78805100

Two-Wheel Sulky

78814800

Grass Collector, 3 cu/ft

78806100

Operator-Controlled Discharge 
Baffle

79211500

Weight Kit, 30 lb. (13.6 Kg)

79260200

61-in. Mulch Kit (988159)

78814700

Cloth Collector, 4 cu/ft

SERVICE PARTS

Part No.

Qty Description

07200518

1

Belt, Blade Drive 
(988153, 56)

07200519

1

Belt, Blade Drive 
(988154, 57)

00181711

1

Belt, Blade Drive 
(988155, 58)

D38006

1

Belt – Hydrostatic Drive

04952005

1

Fuel Tank Cap

00590600

1

Fuse, 20 Amp (988154, 
55, 57, 58, 59)

00888400

1

Relay (988154, 55, 57, 
58, 59)

01554800

1

Battery (988154, 55, 57, 
58, 59)

00669300

1

Hydraulic Filter

GDU10231

2

Mower Blade (988153, 
56)

GDU10230

3

Mower Blade (988154, 
57)

GDU10231

3

Mower Blade (988155, 
58)

GDU10232

3

Mower Blade (988159)

07200614

1

Belt, Blade Drive 
(988159)

Summary of Contents for 988153

Page 1: ...ning up to 10 ethanol E10 or up to 10 MTBE methyl tertiary butyl ether is acceptable for use in this machine The use of any gasoline exceeding 10 ethanol E10 or 10 MTBE will void the product warranty...

Page 2: ...s pour votre quipement Les manuels imprim s dans des langues diff rentes de l anglais sont galement disponibles en t l chargement gratuit sur notre site Web http www gravely com THE MANUAL Before oper...

Page 3: ...death arising out of the use of unauthorized replacement parts To locate your nearest Gravely Dealer go to www gravely com on the Internet DISCLAIMER Gravely reserves the right to discontinue make ch...

Page 4: ...eone other than original purchaser loaned rented or sold ALWAYS provide this manual and any needed safety training before operation SAFETY WARNING This cutting unit is capable of amputating hands and...

Page 5: ...fety Decals Refer to Figure 2 and Figure 3 for Safety Decal locations B 07731400E 07731400E C Never fill tank when engine is running hot or unit is indoors Never overfill fuel tank Replace fuel cap se...

Page 6: ...6 B 07731400E 07731400E C Never fill tank when engine is running hot or unit is indoors Never overfill fuel tank Replace fuel cap securely and clean up spilled fuel Figure 3 1 2 3 988156 57 58 59 4 5...

Page 7: ...er is attached Avoid injury Stay clear of rotating parts HOT SURFACE DO NOT touch parts which are hot from operation ALWAYS allow parts to cool Read the operator s manual Keep children and others away...

Page 8: ...area Never carry passengers especially children even with blades PTO off Read the entire Owner Operator manual and other training material If the operator or the mechanic cannot read the manual it is...

Page 9: ...e clearing clogs or cleaning unit Never leave a running unit unattended ALWAYS shut off engine before leaving unit ALWAYS remove key to prevent unauthorized use DO NOT operate in reverse unless absolu...

Page 10: ...d reproductive harm Wash hands after handling Reverse connections may cause sparks which may result in injury ALWAYS connect disconnect cables in proper order Poisonous battery fluid contains sulfuric...

Page 11: ...rication Points on page 30 Check Mower Deck Level The mower deck is assembled and adjusted at the factory After unit is completely assembled check the mower front to rear and side to side deck level F...

Page 12: ...r 9 Speed Control Safety Bar 10 Left Control Operator Presence Control OPC 11 Control Lever 12 Speed Control Adjustment Lock 13 Battery 988157 58 59 14 Parking Brake 15 Engine oil dipstick 16 Hydrauli...

Page 13: ...PTO Power Take Off Switch 8 Hour Meter 9 Ignition Switch 10 Steering Control Lever 11 Forward Speed Control Levers 12 Fuel Cap 13 Battery 988154 55 14 Recoil Start Handle 988153 15 Hydraulic Pump Bypa...

Page 14: ...ric Start The switch has three positions STOP 1 Run 2 and Start 3 Recoil Start The switch has two positions STOP 1 and Run 2 IMPORTANT Avoid damage Starter may be damaged if operated for more than 20...

Page 15: ...rent fuels Never mix oil and gasoline NOTE All gasoline is not the same If the engine experiences starting or performance problems after using a new gasoline switch to a different fuel provider or fue...

Page 16: ...stest forward speed The steering control levers allow independent control of each hydraulic drive pump to steer operate in forward and reverse and stop the unit The steering lever latches hold the ste...

Page 17: ...rter handle and pull rope out slowly until it pulls harder This is the compression stroke 9 Let the rope rewind slowly 10 Pull rope with rapid continuous full arm stroke to start engine Allow rope to...

Page 18: ...ydraulic drive pump to steer operate in forward and reverse and stop the unit The steering lever latches hold the steering levers in neutral To operate 1 Adjust mower deck to desired cutting height Se...

Page 19: ...Remove key 7 Chock or block the wheels if parked on a slope 988153 54 55 1 Hold steering levers in neutral and engage latches 2 Move the speed control levers to the neutral position 3 Place PTO switch...

Page 20: ...hen transporting unit on a truck or trailer Use extra care when loading or unloading unit Engage parking brake 988156 57 58 59 Ensure both speed control levers are all the way back in neutral steering...

Page 21: ...1 5 16 in 34 mm 5 Mount trunnion in brake arm and secure with spring pin ADJUSTING CONTROL HANDLE HEIGHT 988156 57 58 59 Figure 9 The height of the controls can be adjusted higher or lower than the fa...

Page 22: ...t drive in straight line adjustment is required See Figure 11 a Remove spring pin E from back of control rod swivel F and remove swivel from bracket G b Adjust actuating length by rotating the swivel...

Page 23: ...The wheels should travel in the correct direction as the levers are moved 5 Move control levers A to neutral position the wheels should stop rotating See Figure 13 6 If wheels continue to rotate adju...

Page 24: ...in the direction opposite the faster drive wheel 5 Adjust tracking as necessary with the speed control levers For example if unit pulls to left move left hand LH lever forward to speed up LH wheel or...

Page 25: ...end D 8 Rotate rod end as necessary to adjust upper link length 9 Slide link rod end D onto control rod I 10 Install steel flat washer K and nylon flat washer J on control rod I 11 Temporarily instal...

Page 26: ...pump actuation bracket C 17 Install hairpin G through clevis pin H 18 Tighten jam nut D against clevis E to secure length of steering control rod 19 Connect return spring A to anchor bolt B on pump ac...

Page 27: ...See Figure 18 NOTE If necessary up to an additional 3 4 in 19 mm of cutting height can be obtained See ADDITIONAL CUTTING HEIGHT on page 29 Holes in the height of cut HOC rods are used to adjust the c...

Page 28: ...om the outside facing inward NOTE Ensure that washer E is positioned between hair pin D and frame F 4 Repeat for three remaining HOC rods Figure 19 B A G E C HOC Rod Position Front Shown D F C D B E F...

Page 29: ...e Figure 19 IMPORTANT Ensure that all mower blades are mounted with the same number of spacers ADJUSTING DECK HEIGHT FIXED FLOAT OPTION To raise or lower the deck height remove the hair pins 1 and pla...

Page 30: ...belt idler arm pivot joint D Spray Lubricant See Figure 26 Use a general purpose petroleum based spray lubricant Lubricate the following control items Apply spray lubricant to steering control levers...

Page 31: ...llow the cap to rest on the end of the tube Do not tighten the cap IMPORTANT Avoid damage To prevent extensive engine wear or damage always maintain the proper engine oil level Never operate the engin...

Page 32: ...A Wipe with a clean cloth IMPORTANT Avoid damage To prevent extensive engine wear or damage always maintain the proper engine oil level Never operate the engine with the oil level below the ADD mark...

Page 33: ...RANSMISSION SERVICE Hydraulic Oil Use only 20W 50 non detergent hydraulic oil Checking Transmission Oil Level 1 Park unit safely See PARKING on page 19 2 Remove hydraulic reservoir cap the oil level s...

Page 34: ...level 9 Install filler cap on reservoir 10 Start engine and run at 3 4 throttle position Release the parking brake and cycle the control levers forward and rearward several times Check for leaks 11 St...

Page 35: ...e hex nut does not need to be completely removed Figure 34 4 Loosen the jam nut C and loosen the threaded rod until all spring D tension is removed from the belt E 5 Remove mower deck drive belt and d...

Page 36: ...measurements is more than 1 8 in 3 mm 5 Repeat for all blades Removing Mower Blades See Figure 37 1 Park unit safely See PARKING on page 19 2 Turn the engine off Remove the ignition key Remove the ign...

Page 37: ...en 2 Sharpen mower blade by removing an equal amount of material from each end of mower blade DO NOT change angle of cutting edge or round the corner of mower blade 3 Check mower blade balance Balanci...

Page 38: ...ng G 4 Remove lower bearing H and spacer F from spindle housing G Discard bearing 5 Remove and discard upper bearing E 6 Clean entire assembly 7 Install a new lower bearing H and spacer F on spindle s...

Page 39: ...Deck Belt Tension on page 34 7 Install belt cover TRACTION DRIVE BELT NOTE The Ogura electric clutch can be adjusted if the clutch starts to slip See CLUTCH ADJUSTMENT on page 40 Removal 1 Park unit...

Page 40: ...e remove key and wait for all hot parts to cool 2 Measure the air gap between the armature and the rotor Minimum A 005 feeler gauge should slide between armature and rotor with slight contact Maximum...

Page 41: ...s and related accessories contain lead and lead components chemicals known to the State of California to cause cancer and reproductive harm Wash hands after handling CAUTION Avoid injury Battery elect...

Page 42: ...battery fluid External Contact Flush with water Eyes Flush with water for at least 15 minutes and get medical attention immediately Internal Contact Drink large quantities of water Follow with Milk of...

Page 43: ...clip is broken 3 Install new fuse into socket Replacing Relays 988154 55 57 58 59 NOTE Relays are interchangeable Use only quality replacement relays See SERVICE PARTS on page 49 The unit is equipped...

Page 44: ...el spindles Remove debris from the underside of the mower deck Every 50 Hours or Weekly Whichever Comes First Apply grease to front caster wheels Apply grease to front caster wheel spindles Remove deb...

Page 45: ...tting blocks under frame or axle Fuel System Gasoline left in the fuel system for extended periods without a stabilizer will deteriorate resulting in gum deposits in the system These deposits can dama...

Page 46: ...t or kinked throttle cable Bent governor control Incorrect governor idle control Carburetor problems See servicing dealer Engine Runs Rough or Stalls Plugged fuel filter Plugged air intake system Fuel...

Page 47: ...Faulty PTO switch Faulty PTO clutch Loose PTO clutch connections Faulty relay or relay connection s See Replacing Relays on page 43 Problem Probable Cause Parking Brake Not Working Correctly Parking b...

Page 48: ...e belt shields and check for debris on sheaves Check sheaves for proper alignment or damage See your Gravely dealer Mower Blades Do Not Engage Mower deck drive belt slipping or broken Spindle drive be...

Page 49: ...UMP NEUTRAL POSITION on page 26 ACCESSORIES Part No Description 79260500 36 in Mulch Kit 988153 56 79260000 48 in Mulch Kit 988154 57 79260400 52 in Mulch Kit 988155 58 78805100 Two Wheel Sulky 788148...

Page 50: ...h Filter Change Qt L 3 5 3 3 Deck Cutting Width in cm 35 5 90 1 47 5 120 7 51 5 130 8 Cutting Height in cm 1 1 2 5 3 8 12 7 Cutting Positions 15 Spindles 1 In 2 5 cm Aluminum Sealed Blade Bolt Torque...

Page 51: ...lter Change Qt L 3 5 3 3 Deck Cutting Width in cm 35 5 90 1 47 5 120 7 51 5 130 8 61 0 154 9 Cutting Height in cm 1 1 2 5 3 8 12 7 Cutting Positions 15 Spindles 1 In 2 5 cm Aluminum Sealed Blade Bolt...

Page 52: ...ty Warranty Code Product Group Warranty Period Consumer Use Warranty Period Commercial Use CA Pro Turn Pro Master Compact Pro Pro Stance Pro Ride Pro Walk Mowers Pro Zoom etc 3 Years or 1000 hrs 2 Yea...

Page 53: ...requirements of any other area Warranty service is limited to service within the area originally distributed In countries other than the United States and Canada contact the Ariens Company dealer for...

Page 54: ...uired maintenance listed in your Owner s Manual Ariens Company recommends that you retain all receipts covering maintenance on your small off road equipment but Ariens Company cannot deny warranty sol...

Page 55: ...ior to the first scheduled replacement point for the part 4 Repair or replacement of any warranted part under the warranty provisions of this article must be performed at no charge to the owner at an...

Page 56: ...this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm WARNING GRAVELY 655 West Ryan Street Brillion WI 54110 920 756 4688 Fax 920 7...

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