Husqvarna 675 Manual
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11 MULCHING MOWING TIPS IMPORTANT: For best performance, keep mower housing free of built-up grass and trash. See “CLEANING” in the Maintenance section of this manual. The special mulching blade will recut the grass clip pings many times and reduce them in size so that as they fall onto the lawn they will disperse into the grass and not be noticed. Also, the mulched grass will bio de grade quick ly to provide nu tri ents for the lawn. Always mulch with your highest engine (blade) speed as this will provide the best recut- ting action of the blades. Avoid cutting your lawn when it is wet. Wet grass tends to form clumps and in ter feres with the mulch ing action. The best time to mow your lawn is the early afternoon. At this time the grass has dried, yet the newly cut area will not be exposed to direct sunlight. For best results, adjust the lawn mower cutting height so that the lawn mower cuts off only the top one-third of the grass blades. If the lawn is over grown it will be nec es sary to raise the height of MAX 1/3 cut to reduce pushing effort and to keep from over load ing the engine and leaving clumps of mulched grass. For ex tremely heavy grass, reduce your width of cut by overlapping previously cut path and mow slowly. Certain types of grass and grass con di tions may re quire that an area be mulched a second time to com pletely hide the clip pings. When doing a sec- ond cut, mow across (perpendicular) to the rst cut path. Change your cutting pattern from week to week. Mow north to south one week then change to east to west the next week. This will help prevent matting and graining of the lawn. Check for Loose Fasteners Clean / Inspect Grass Catcher * Check Tires Check Drive Wheels *** Clean Lawn Mower **** Clean under Drive Cover *** Check Drive Belt / Pulleys *** Check / Sharpen / Replace Blade Lubrication Clean and Recharge Battery ** Check Engine Oil level Change Engine Oil Clean Air Filter Inspect Muffler Replace Spark Plug Replace Air Filter Paper Cartridge Empty fuel system or add Stabilizer BEFORE EACH USEAFTER EACH USEEVERY 10 HOURSEVERY 25 HOURS OR SEASONEVERY 100 HOURSBEFORE STORAGE 1- Change more often if operating under a heavy load or in high outdoor temperatures. 2- Service more often if operating in dirty or dusty conditions. 3- Replace blades more often when mowing in sandy soil. 4- Charge 48 hours at end of season. 5- And after each 5 hours of use. (if so equipped) Electric-Start mowers Power-Propelled mowers Use a scraper to clean under deck* ** *** **** MAINTENANCE
12 GENERAL REC OM MEN DA TIONS The warranty on this lawn mower does not cover items that have been sub ject ed to operator abuse or negligence. To receive full value from the warranty, operator must maintain unit as in struct ed in this manual. Some adjustments will need to be made periodically to properly maintain your unit. At least once a season, check to see if you should make any of the adjustments described in the Service and Ad just ments section of this manual. At least once a year, replace the spark plug, clean or replace air lter element and check blade for wear. A new spark plug and clean/new air lter element assure proper air-fuel mix ture and help your engine run bet ter and last longer. Follow the maintenance schedule in this manual. BEFORE EACH USE Check engine oil level. Check for loose fasteners. LUBRICATION Keep unit well lubricated (See “LU BRI CA TION CHART”). LUBRICATION CHART ➀ Spray lubricant ➁ See ENGINE in Maintenance section. IMPORTANT: Do not oil or grease plastic wheel bearings. Viscous lu bri cants will attract dust and dirt that will short en the life of the self-lu bri cat ing bearings. If you feel they must be lu bri cated, use only a dry, pow dered graphite type lubricant spar ingly. ➀ Wheel adjuster (on each wheel) ➁ Engine oil ➀ Rear door hinge ➀ Handle bracket mounting pins ➀ Mulcher door hinge pin LAWN MOWER Always observe safety rules when per- for m ing any main te nance. TIRES Keep tires free of gasoline, oil, or insect control chemi cals which can harm rubber. Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage. DRIVE WHEELS Check front drive wheels each time be fore you mow to be sure they move freely. The wheels not turning freely means trash, grass cuttings, etc. are in the drive wheel area and must be cleaned to free drive wheels. If necessary to clean the drive wheels, be sure to clean both front wheels. 1. Remove hubcaps, locknuts & washers. 2. Remove wheels from wheel ad just ers. 3. Remove any trash or grass cuttings from inside the dust cover, pinion and/ or drive wheel gear teeth. 4. Put wheels back in place. NOTE: If after cleaning, the drive wheels do not turn freely, contact a Husqvarna or other quali ed service center. BLADE CARE For best results, blade must be kept sharp. Re place a bent or dam aged blade. CAUTION: Use only a replacement blade approved by the manufacturer of your mower. Using a blade not approved by the manu- facturer of your mower is hazardous, could damage your mower and void your warranty. TO REMOVE BLADE 1. Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug. 2. Turn lawn mower on its side. Make sure air lter and carburetor are up. 3. Use a wood block between blade and mower hous ing to prevent blade from turning when re mov ing blade bolt. NOTE: Protect your hands with gloves and/or wrap blade with heavy cloth. 4. Remove blade bolt by turning counter- clockwise. 5. Remove blade & attaching hard ware (bolt, lock wash er & hardened wash er). TO REPLACE BLADE 1. Position blade on the blade adapter aligning the two (2) holes in the blade with the raised lugs on the adapter. 2. Be sure the trailing edge of blade (oppo- site sharp edge) is up toward the engine. 3. Install the blade bolt with the lock washer and hardened washer into blade adapter and crankshaft.
13 4. Use block of wood between blade and lawn mower housing and tighten the blade bolt, turning clockwise. The recommended tightening torque is 35-40 ft. lbs. IMPORTANT: Blade bolt is heat treated. If bolt needs replacing, replace only with approved bolt shown in the Repair Parts section of this manual. TO SHARPEN BLADE NOTE: We do not recommend sharp en ing the blade - but if you do, be sure the blade is balanced. Care should be taken to keep the blade balanced. An un bal anced blade will cause eventual damage to mower or engine. The blade can be sharp ened with a le or on a grinding wheel. Do not attempt to sharpen while on the mower. To check blade balance, drive a nail into a beam or wall. Leave about one inch of the straight nail ex posed. Place center hole of blade over the head of the nail. If blade is balanced, it should remain in a horizontal position. If either end of the blade moves downward, sharpen the heavy end until the blade is balanced. GRASS CATCHER The grass catcher may be hosed with water, but must be dry when used. Check your grass catcher often for dam- age or de te ri o ra tion. Through normal use it will wear. If catcher needs replac- ing, replace only with ap proved replace- ment catcher shown in the Repair Parts section of this manual. Give the lawn mower model number when ordering. GEAR CASE To keep your drive system working properly, the gear case and area around the drive should be kept clean and free of trash build-up. Clean under the drive cover twice a season. The gear case is lled with lubricant to the proper level at the factory. The only time the lubricant needs attention is if service has been performed on the gear case. If lubricant is required, use only Elf Mul- tis EP00. Do not substitute. Blade boltCrankshaft keyway Hardened washer Lockwasher Blade adapter Key Blade Trailing edgeCrankshaft ENGINE LUBRICATION Use only high quality detergent oil rated with API service classi cation SG–SL. Select the oils SAE viscosity grade according to your expected operating temperature. TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE SAE VISCOSITY GRADES -20 0 30 40 80 100 -30 -20 0 20 30 40 F C32 -10 10 60 5W-30SAE 30 Container NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, these multi-viscosity oils will result in in creased oil consumption when used above 32°F. Check your engine oil level more frequently to avoid possible engine damage from running low on oil. Change the oil after every 25 hours of op- eration orat least once a year if the mower is not used for 25 hours in one year. Check the crankcase oil level before starting the engine and after each ve (5) hours of continuous use. Tighten oil plug securely each time you check the oil level. TO CHANGE ENGINE OIL NOTE: Before tipping lawn mower to drain oil, empty fuel tank by running engine until fuel tank is empty. 1. Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug. 2. Remove engine oil cap; lay aside on a clean surface. 3. Tip lawn mower on its side as shown and drain oil into a suitable container. Rock lawn mower back and forth to re- move any oil trapped inside of engine. 4. Wipe off any spilled oil from lawn mower or side of engine. 5. Slowly pour oil down the oil ll spout, stopping every few ounces to check the oil level with the dipstick. 6. Stop adding oil when you reach the FULL mark on the dipstick. Wait a minute to allow oil to settle.
14 7. Continue adding small amounts of oil, rechecking the dipstick until oil level settles at FULL. DO NOT over ll, or engine will smoke heavily from the muf- er on startup. 8. Always be sure to retighten oil dipstick before starting engine. 9. Re con nect spark plug wire to spark plug. AIR FILTER Your engine will not run properly and may be damaged by using a dirty air lter. Replace the air lter cartridge every 100 hours of op er a tion or every season, which- ev er occurs rst. Service air cleaner more often under dusty conditions.4. Install cartridge, then replace cover. Be sure tabs are aligned with slots in the back plate. Fasten screw securely. MUFFLER Inspect and replace corroded muf er as it could create a re hazard and/or dam age. SPARK PLUG Replace spark plug at the beginning of each mowing season or after every 100 hours of operation, whichever occurs rst. Spark plug type and gap setting are shown in the “PROD UCT SPEC I FI C- A TIONS” section of this manual. CLEANING IMPORTANT: For best performance, keep mower housing free of built-grass and trash. Clean the underside of your mower after each use. CAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug. Clean the underside of your lawn mower by scraping to remove build-up of grass and trash. Clean engine often to keep trash from accumulating. A clogged engine runs hotter and shortens engine life. Keep nished surfaces and wheels free of all gasoline, oil, etc. We do not recommend using a garden hose to clean lawn mower unless the elec tri cal system, muf er, air lter and carburetor are covered to keep water out. Water in engine can result in short- ened engine life. CLEAN UNDER DRIVE COVER Clean under drive cover at least twice a sea- son. Scrape underside of cover with putty knife or similar tool to remove any build-up of trash or grass on underside of drive cover. SERVICE AND ADJUSTMENTS WARNING: To avoid serious injury, before performing any service and adjustments: 1. Release control bar and stop engine. 2. Make sure the blade and all moving parts have completely stopped. 3. Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug. Back plate Slot Lip Cover tab Cartridge Cover LAWN MOWER TO ADJUST CUTTING HEIGHT See “TO ADJUST CUTTING HEIGHT” in the Operation sec tion of this manual.REAR DEFLECTOR The rear de ector, attached between the rear wheels of your mower, is provided to minimize the possibility that objects will be thrown out of the rear of the mower into the operator mowing position. If the de ector becomes dam aged, it should be replaced. TO CLEAN AIR FILTER 1. Loosen screw and tilt cover to re move. 2. Carefully remove cartridge. 3. Clean by gently tapping on a at sur- face. If very dirty, replace car tridge. CAUTION: Pe tro leum solvents, such as ker o sene, are not to be used to clean car- tridge. They may cause de te ri o ra tion of the cartridge. Do not oil car tridge. Do not use pres sur ized air to clean or dry car tridge.
15 TO ADJUST HANDLE The handle can be mounted in a high or low position. The mounting holes in the bottom of lower handle are off center for raising or lowering the handle. 1. Remove upper handle and wire tie(s) securing cable(s) to lower handle. 2. Remove hairpin cotters from lower handle bracket mount ing pin. 3. Squeeze lower handle in to remove it from mounting pins. 4. Turn lower handle over to raise or lower handle. 5. Squeeze lower handle in and po si tion holes onto mount ing pins on handle bracket. 6. Reassemble upper handle and all parts removed from lower handle. BeltDrive cover PUSH DOWN Belt keeper Lower handle Handle bracket Hairpin cotter SQUEEZE TO ADJUST Mounting pin Debris shieldDrive belt Belt retainers TO REMOVE DRIVE BELT 1. Remove drive cover and belt keeper. 2. Remove belt from gearcase pulley by push ing down on pulley and rolling belt off it. 3. Turn lawn mower on its side with air lter and car bu re tor down. 4. Remove blade and debris shield. 5. Remove belt from engine pulley on crankshaft. TO REPLACE DRIVE BELT 1. Place new drive belt in the belt retain- ers of the debris shield. 2. Route the other end of the new drive belt through hole in housing. 3. Reinstall debris shield and blade. 4. Return mower to upright po si tion. 5. Install new belt on gearcase pulley. 6. Reinstall belt keeper and drive cover. NOTE: Always use factory approved belt to assure proper t and long life. Lower handle R O TAT E Mowing positionMowing position HIGH POSITION LOW POSITIONHandle bracket Hairpin cotter Mounting pin
16 your lawn mower to a Husqvarna or other quali ed service center for repair and/or ad just ment. IMPORTANT: Never tamper with the engine governor, which is factory set for proper engine speed. Over speed ing the engine above the factory high speed setting can be dangerous. If you think the engine-governed high speed needs adjusting, contact a Husqvarna or other quali ed service center, which has proper equip ment and ex pe ri ence to make any nec es sary adjustments. STORAGE Immediately prepare your lawn mower for storage at the end of the season or if the unit will not be used for 30 days or more. Lower handleSQUEEZE TO FOLD FOLD FORWARD FOR STORAGE MOWING POSITION Lower handleOperator presence control bar Upper handle Handle knobLAWN MOWER When lawn mower is to be stored for a period of time, clean it thor oughly, remove all dirt, grease, leaves, etc. Store in a clean, dry area. 1. Clean entire lawn mower (See “CLEANING” in the Maintenance sec- tion of this manual). 2. Lubricate as shown in the Main te nance section of this manual. 3. Be sure that all nuts, bolts, screws, and pins are securely fas tened. Inspect moving parts for damage, breakage and wear. Replace if necessary. 4. Touch up all rusted or chipped paint surfaces; sand lightly before painting. HANDLE You can fold your mower handle for storage. 1. Squeeze the bottom ends of the lower handle toward each other until the lower handle clears the handle bracket, then move handle forward. 2. Loosen upper handle mounting bolts enough to allow upper handle to be folded back. IMPORTANT: When folding the handle for storage or transportation, be sure to fold the handle as shown or you may dam- age the control cables. When setting up your handle from the storage position, the lower han dle will automatically lock into mow ing position. ENGINE ENGINE SPEED Your engine speed has been factory set. Do not attempt to increase en gine speed or it may result in personal injury. If you believe that engine is running too fast or too slow, take your mower to a Husqvarna or other quali ed service cen ter for repair and ad just ment. CARBURETOR Your carburetor is not adjustable. If your engine does not operate properly due to suspected carburetor problems, take ENGINE FUEL SYS TEM IMPORTANT: It is important to prevent gum deposits from forming in essential fuel system parts such as carburetor, fuel lter, fuel hose, or tank during storage. Alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. Empty the fuel tank by starting the en- gine and letting it run until the fuel lines and car bu re tor are empty. Never use engine or carburetor cleaner prod ucts in the fuel tank or permanent damage may occur. Use fresh fuel next season. NOTE: Fuel stabilizer is an acceptable al- ternative in min i miz ing the formation of fuel
17
gum deposits during stor age. Add stabilizer
to gasoline in fuel tank or storage container.
Always follow the mix ratio found on stabilizer
container. Run engine at least 10 min utes
after adding stabilizer to allow the stabilizer to
reach the carburetor. Do not empty the gas
tank and carburetor if using fuel stabilizer.
ENGINE OIL
Drain oil (with engine warm) and replace
with clean engine oil. (See “ENGINE” in
the Maintenance section of this man ual).
CYLINDER
1. Remove spark plug.
2. Pour one ounce (29 ml) of oil through
spark plug hole into cylinder.
3. Pull starter handle slowly a few times to
dis trib ute oil.
4. Replace with new spark plug.OTHER
Do not store gasoline from one season
to another.
Replace your gasoline can if your can
starts to rust. Rust and/or dirt in your
gasoline will cause problems.
If possible, store your unit indoors and
cover it to protect it from dust and dirt.
Cover your unit with a suitable pro tec -
tive cover that does not retain mois ture.
Do not use plastic. Plastic cannot
breathe, which allows condensation to
form and will cause your unit to rust.
IMPORTANT: Never cover mower while
engine and exhaust areas are still warm.
CAUTION: Never store the lawn mower
with gaso line in the tank in side a build ing
where fumes may reach an open ame
or spark. Allow the engine to cool before
storing in any enclosure.
Does not start 1. Dirty air lter. 1. Clean/replace air lter.
2. Out of fuel. 2. Fill fuel tank.
3. Stale fuel. 3. Empty fuel tank and re ll tank
with fresh, clean gasoline.
4. Water in fuel. 4. Empty fuel tank and re ll tank
with fresh, clean gasoline.
5. Spark plug wire is 5. Connect wire to plug.
disconnected.
6. Bad spark plug. 6. Replace spark plug.
7. Loose blade or broken 7. Tighten blade bolt or
blade adapter. replace blade adapter.
8. Control bar in released 8. Depress control bar to
position. handle.
9. Control bar defective. 9. Replace control bar.
10. Fuel valve lever (if so 10. Turn fuel valve lever
equipped) in OFF position. to the ON position.
11. Weak battery (if equipped). 11. Charge battery.
12. Disconnected battery 12. Connect battery to engine.
connector (if equipped).PROBLEM CAUSE CORRECTION
TROUBLESHOOTING - See appropriate section in manual unless directed
to a Husqvarna or other quali ed service center.
18
Loss of power 1. Rear of mower housing or 1. Raise cutting height.
blade dragging in grass.
2. Cutting too much grass. 2. Raise cutting height.
3. Dirty air lter. 3. Clean/replace air lter.
4. Buildup of grass, leaves, 4. Clean underside of mower
and trash under mower. housing.
5. Too much oil in engine. 5. Check oil level.
6. Walking speed too fast. 6. Cut at slower walking speed.
Poor cut – 1. Worn, bent or loose blade. 1. Replace blade. Tighten
uneven blade bolt.
2. Wheel heights uneven. 2. Set all wheels at same
height.
3. Buildup of grass, leaves 3. Clean underside of
and trash under mower. mower housing.
Excessive 1. Worn, bent or loose blade. 1. Replace blade. Tighten
vibration blade bolt.
2. Bent engine crankshaft. 2. Contact a Husqvarna or
other quali ed service center.
Starter rope 1. Engine ywheel brake is on 1. Depress control bar to
hard to pull when control bar is released. upper handle before
pulling the starter rope.
2. Bent engine crankshaft. 2. Contact a Husqvarna or
other quali ed service center.
3. Blade adapter broken. 3. Replace blade adapter.
4. Blade dragging in grass. 4. Move lawn mower to cut
grass or to hard surface.
Grass catcher 1. Cutting height too low. 1. Raise cutting height.
not lling 2. Lift on blade worn off. 2. Replace blade.
(If so equipped) 3. Catcher not venting air. 3. Clean grass catcher.
Hard to push 1. Grass is too high or wheel 1. Raise cutting height.
height is too low.
2. Rear of mower housing or 2. Raise rear of mower housing
blade dragging in grass. one (1) setting higher.
3. Grass catcher too full. 3. Empty grass catcher.
4. Handle height position not 4. Adjust handle height to suit.
right for you.
Loss of drive 1. Belt wear. 1. Check/replace drive belt.
or slowing of 2. Belt off of pulley. 2. Check/reinstall drive belt.
drive speed 3. Drive cable worn or broken. 3. Replace drive cable.
4. “Loose” drive control system. 4. Adjust drive control.PROBLEM CAUSE CORRECTION
TROUBLESHOOTING - See appropriate section in manual unless directed
to a Husqvarna or other quali ed service center.
36 HUSQVARNA ROTARY LAWN MOWER - - MODEL NUMBER 917.375820 REPAIR PARTS
37
HUSQVARNA ROTARY LAWN MOWER - - MODEL NUMBER 917.375820
KEY PART
NO. NO. DESCRIPTIONKEY PART
NO. NO. DESCRIPTION 1 196403 Upper Handle Assembly
(Includes Foam Grip)
2 183567 Engine Zone Control Cable
3 850733X004 Bracket, Upstop
4 166649 Mulcher Plug
5 66426 Wire Tie
6 189713X418 Handle Knob
7 750634 Screw
8 194580X422 Control Bar
9 193679 Rear Door Assembly
(Includes Springs)
10 128415 Pop Rivet
11 150050 Screw, Self-Tapping
#10-24 x 5/8
12 54583 Screw, Hex Head,
Sems 1/4-20 x 1/2
14 195622X479 Back Plate
15 700365X479 Side Baf e
16 176655X479 Discharge Baf e
17 140661X479 Rear Baf e
18 132004 Keps Locknut 1/4-20
19 194788 Rope Guide
20 189008 Rear Skirt
21 170938 Spring, Rear Door, LH
24 170939 Spring, Rear Door, RH
25 145212 Nut, Hex, Flanged
26 184193 Bolt, Rear Door
27 193906X460 Wheel & Tire Assembly, Rear
28 142748 Bolt, Shoulder 3/8-16 x 1
29 61651 Washer, Belleville30 180413X004 Axle Arm Assembly
31 189808X418 Selector Knob
32 198169X004 Selector Spring
33 189917X418 Mulcher Door
34 146630 Spacer
35 700325X007 Wheel Adjusting Bracket
36 175735 Hinge Bracket Assembly
37 150078 Screw, Sems, Thread Cutting
5/16-18 x 3/4
38 402574X418 Discharge De ector
39 195915X479 Handle Bracket Assembly, LH
40 195914X479 Handle Bracket Assembly, RH
41 150406 Bolt, Hex Head, Engine 3/8-16
42 193000 Spring, Torsion
43 73800400 Nut, Hex, Nylock
44 197556 Kit, Lawn Mower Housing
(Includes Key #14, 15 and 51)
45 175650 Rod, Hinge
46 194037 Blade Adapter / Pulley
47 141114 Blade, 22
48 851074 Washer, Hardened
49 850263 Washer, Helical
50 851084 Screw, Machine, Hex Head
3/8-24 x 1-3/8 Grade 8
51 170031 Front Baf e
52 85463 Danger Decal
53 17600406 Screw
54 88348 Washer, Flat
55 751592 Locknut, Hex 3/8-16
NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm.
IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your lawn mower and void your warranty.
56 88652 Screw, Hinge 1/4-20 x 1-1/4
57 51793 Hairpin Cotter
58 151590X498 Lower Handle
59 191574 Handle Bolt
60 74760612 Bolt, Hex Head 3/8-16 x 3/4
62 199314 Debris Shield
63 192325 Screw, Debris Shield
64 - - - Engine, Briggs & Stratton,
Model No. 125K02-0654-E1
(For engine service and
replacement parts,
call Briggs & Stratton
at 1-800-233-3723)
65 197480 O-Ring
69 197991 Clip, Cable
70 182748 Foam Grip
71 188839X004 Mounting Bracket,
DebrisShield
72 182227 Screw #8
73 197162 Belt Keeper
74 182228 Nut, Hex
- - 161058 Warning Decal (not shown)
- - 402735 Owner’s Manual
Available accessories not included with mower:
- - 71 33623 Gas Can
(2.5 Gallon Container)
- - 71 33500 Fuel Stabilizer
- - 71 33000 SAE 30W Oil
(20 Ounce Bottle)KEY PART
NO. NO. DESCRIPTION