Husqvarna Mzt 52 Manual

							31
OPERATION
Operating on Hills
Read the \bafety I\fst\aructio\fs Driving on Slopes i\f the 
Safety Instructions.
IMPORTANT INFORMATION
Control levers ret\gurn to neutral when \greleased\b 
This may cause the m\gower to suddenly st\gop\b
WARNING!
Do not drive up or \gdown hills with slo\gpes 
greater than 10 degr\gees\b Do not drive 
across slopes\b
• The slowest speed \apossible should be \aused 
before starti\fg up or dow\f hill\as.
• Avoid stoppi\fg or ch\aa\fgi\fg speed o\f hill\as.
• If stoppi\fg is abso\alutely \fecessary, pull drive 
levers i\fto the \feut\aral positio\f a\fd push\a to the 
outside of the u\fit \aa\fd e\fgage the parki\f\ag brake.
• To restart moveme\ft, release the parki\fg b\arake.
• Pull the co\ftrol levers back to t\ahe ce\fter of the 
mower a\fd press forward to regai\f forward 
motio\f.
• Make all tur\fs slowly.
8058-182Release the parking brake to restart movement
8058-226Place controls in neutral position  
						

							32
OPERATION
Stopping the Engine
For all models, mov\ae the throttle to the mi\fimu\am 
positio\f (tortoise symbol). If \athe e\fgi\fe has bee\f \a
worked hard, allow it to idle\a a mi\fute to attai\f a \a
\formal operati\fg temper\aature before stoppi\fg. To 
preve\ft fouli\fg the sp\aark plugs, avoid idl\ai\fg the 
e\fgi\fe for lo\fger pe\ariods.
1. Dise\fgage the mower \adeck by depressi\fg the 
blade switch.
8058-214Disengage the mower deck and move throttle to minimum
2. Raise the mower dec\ak by pressi\fg the foot ped\aal 
forward to the tra\fsport positio\f.
3. Whe\f the machi\fe is \asta\fdi\fg still, activ\aate the 
parki\fg brake by pul\ali\fg the lever upwar\ad.
4. Tur\f the ig\fitio\f key t\ao the stop positio\a\f.
5. Move the steeri\fg c\ao\ftrols outward.
6. Remove ig\fitio\f key\a. To preve\ft u\fauthorized us\ae, 
always remove the key whe\f \aleavi\fg the mower.
8058-223Raise deck to transport position
8058-266Place controls in neutral position to stop
IMPORTANT INFORMATION
Leaving the ignition\g switch in any othe\gr 
position than OFF w\gill cause the \fatter\gy to \fe 
discharged\b  
						

							33
OPERATION
8011-603bMowing pattern
Mowing Tips
• Observe a\fd flag rocks a\fd other fixed\a objects to 
avoid collisio\fs.
• Begi\f with a high c\autti\fg height a\fd reduce it 
u\ftil the desired mowi\fg result is attai\fed. T\ahe 
average law\f should b\ae cut to 2½" (64 mm\a) 
duri\fg the cool seas\ao\f a\fd over 3" (76 m\am) 
duri\fg the hot mo\fth\as. For healthier a\fd\a better 
looki\fg law\fs, mow o\afte\f after moderate \agrowth.
• For best cutti\fg pe\arforma\fce, grass over 6"\a (15 
cm) i\f height shoul\ad be mowed twice. \aMake the 
first cut relatively high; the\a seco\fd to the desi\ared 
height.
• The mowi\fg result will be best \awith a high e\fgi\fe 
speed (the blades r\aotate rapidly) a\fd l\aow speed 
(the rider moves s\alowly). If the gras\as is \fot 
too lo\fg a\fd de\fse, t\ahe drivi\fg speed ca\a\f be 
i\fcreased without \fegati\avely affecti\fg the mowi\fg \a
result.
• The fi\fest law\fs are obtai\fed by mowi\fg\a ofte\f. 
The law\f becomes mo\are eve\f a\fd the grass\a 
clippi\fgs more eve\fly distribute\ad over the mow\f 
area. The total time \atake\f is \fot i\fcreased as a 
higher operati\fg sp\aeed ca\f be used with\aout poor 
mowi\fg results.
• Avoid mowi\fg wet law\a\fs. The mowi\fg result is 
poorer because the whee\als si\fk i\fto the so\aft law\f, 
clumps build, a\fd the\a grass clippi\fgs fas\ate\f 
u\fder the cowli\fg.
• Hose the mower dec\ak u\fderside with wat\aer after 
each use. Whe\f clea\fi\a\fg, the mower deck \ashall 
be raised i\fto the \atra\fsport positio\f. Make sur\ae 
the mower is coole\ad a\fd the e\fgi\fe is \aoff.
• Use compressed air to clea\f t\aop surface of the 
deck. Avoid floodi\fg water \ao\f top surface, e\fgi\fe 
a\fd electrical compo\a\fe\fts.
• Whe\f the mulchi\fg ki\at is used, it is im\aporta\ft that 
the mowi\fg i\fterval \ais freque\ft a\fd that the d\aeck 
is clea\fed more ofte\f.
WARNING!
Clear the lawn of s\gtones and other 
o\fjects that can \fe \gthrown out \fy the 
\flades\b
WARNING!
Never drive the rid\ger on terrain that \g
slopes more than 10\g degrees\b Mow 
slopes up and down,\g never side to sid\ge\b 
Avoid sudden directi\gonal changes\b  
						

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2
34
OPERATION
Moving Machine By Han\gd
8058-0911. Release lever lo\acked i\fto the bypas\as positio\f
2. Release lever, e\fgaged
Right side, ZT-3400 linkage
Whe\f pushi\fg or pull\ai\fg the mower, e\fgage the 
bypass li\fkages with\a the hydro release levers. The \a
levers are located o\f each si\ade of the rear of the u\fit 
below the e\fgi\fe pl\aate.
Raise the deck to t\ahe highest (tra\fspo\art) positio\f.
Pull the bypass li\fk\aages up a\fd out of th\ae keyhole 
slots. Release the \alever with the head\a outside the 
bracket a\fd held i\ft\ao the bypass setti\f\ag.
To ree\fgage the hydro to drive, reverse the above 
procedure.
WARNING!
No adjustments or m\gaintenance should 
\fe carried out unles\gs:
• the engine stopped
• the ignition key re\gmoved
• the parking \frake ac\gtivated
WARNING!
Bypass linkages are\g located close to \gthe 
muffler\b To prevent \furns, the\g engine 
should \fe shut off an\gd allowed to cool \g
\fefore the \fypass li\gnkage levels are 
handled\b  
						

							35
MAINTENANCE
1) First cha\fge after 8\a-10 hours. Whe\f ope\arati\fg with a heavy \aload 
or at high ambie\ft t\aemperatures, replace every 50 hours.
2) I\f dusty co\fditio\fs, \aclea\fi\fg a\fd replaceme\ft are required more ofte\f.
3) Performed by authorized s\aervice workshop.
● = Described i\f this \ama\fual
♦ = Not described i\f \athis ma\fual
■ = Refer to the e\fgi\a\fe ma\fufacturer's ma\fual
MAINTENANCE
DailyAt least 
once 
each 
year
Maintenance interva\gl 
in hours
BeforeAfter50250500
Check the parki\fg b\arake●
Check the e\fgi\fe’s \aoil level (every refueli\fg)■
Check the safety sy\astem●
Check for fuel a\fd o\ail leakages♦
Check/clea\f the e\fgi\a\fe’s cooli\fg air i\ft\aake■
Check the mower de\ack●
Check for loose har\adware (screws, \futs)●
Clea\f u\fder the mowe\ar deck●●●●
\btart the e\fgi\fe a\fd blad\aes, liste\f for u\fusual\a sou\fds♦
Check for damage♦♦♦♦
Thoroughly clea\f arou\fd the e\fgi\fe♦♦♦♦
Clea\f arou\fd belts, belt pul\aleys♦♦♦♦
Check the tire pressures●●●●
Check battery co\f\fectio\fs●●●●
\bharpe\f3)/ Replace mower bla\ades●●●●
Clea\f the e\fgi\fe’s c\aooli\fg air i\ftake 2)■■■■
Clea\f the air clea\fer\a’s foam pre-filter 2)■■
Clea\f the air clea\fer\a’s paper filter cartridge 2) ■■
Check/adjust the par\aki\fg brake●●●●
I\fspect muffler/spark\a arrester♦♦♦♦  
						

							36
MAINTENANCE
WARNING!
Before performing a\gny service or adjus\gtment checklist:
• Engage the parking \fr\gake\b
• Place the Blade-swi\gtch in the disengage\gd position\b
• Turn the ignition swi\gtch to OFF position\g and remove the key\g\b
• Make sure the \flades \gand all moving part\gs have completely s\gtopped\b
• Disconnect the spar\gk plug wire from al\gl spark plugs and p\glace the wire where\g it    
cannot come in con\gtact with the plug\b
MAINTENANCE
DailyAt least 
once 
each 
year
Maintenance interva\gl 
in hours
BeforeAfter50250500
Check/adjust throttle cable■
Check the co\fditio\f\a of belts, belt pul\aleys●●
Cha\fge the e\fgi\fe oi\al 1)■■
Replace the e\fgi\fe o\ail filter■■
Clea\f/replace the spark pl\augs■■
Replace the fuel fil\ater●●
Replace paper air fil\ater 2)■■
Check the caster wh\aeels (every 200 hours)●●
Replace the air cle\aa\fer’s foam pre-filter 2)■
Cha\fge the hydraulic\a oil (every 500 hours)●●
Replace the hydrauli\ac oil filter (every 500 hours)●●
Disma\ftle a\fd i\fspect \astarter 3) (every 500 hours)♦
Check/adjust the mo\awer deck●●
Check the e\fgi\fe val\ave cleara\fce 3)♦♦
Perform the 500-hour serv\aice 3)♦♦
1) First cha\fge after 8\a-10 hours. Whe\f ope\arati\fg with a heavy \aload 
or at high ambie\ft t\aemperatures, replace every 50 hours.
2) I\f dusty co\fditio\fs, \aclea\fi\fg a\fd replaceme\ft are required more ofte\f.
3) Performed by authorized s\aervice workshop.
● = Described i\f this \ama\fual
♦ = Not described i\f \athis ma\fual
■ = Refer to the e\fgi\a\fe ma\fufacturer's ma\fual  
						

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2
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37
MAINTENANCE
Battery
The mower is equipp\aed with a mai\fte\fa\fce\a free 
battery a\fd does \fot \feed \aservici\fg. However, 
periodic chargi\fg o\af the battery with a\f automotive\a 
type battery charger will exte\a\fd its life.
• Keep battery a\fd termi\fals clea\f.
• Keep battery bolts tight.
• \bee chart for chargi\fg time\as.
IMPORTANT INFORMATION
Do not attempt to \gopen or remove cap\gs or 
covers\b Adding or checking l\gevel of electrolyt\ge 
is not necessary\b
Always use two wren\gches for the termin\gal 
screws\b
WARNING!
Always wear eye pr\gotection when 
around \fatteries\b
WARNING!
Do not short \fatter\gy terminals \fy 
allowing a wrench o\gr any other o\fject \gto 
contact \foth termin\gals at the same tim\ge\b 
Before connecting \f\gattery, remove metal 
\fracelets, wristwat\gch \fands, rings, etc\g\b
Positive terminal \gmust \fe connected 
first to prevent sp\garks from accident\gal 
grounding\b
\bTANDARD
BATTERY
\b TAT E
OF
CHARGE
APPROXIMATE BATTERY CHARGING TIME* TO FULL CHARGE AT 80OF / 27OC
Maximum Rate at:
50 Amps30 Amps20 Amps10 Amps
12.6V100% - FULL CHARGE -
12.4V75%20 mi\f.35 mi\f.48 mi\f.90 mi\f.
12.2V50%45 mi\f.75 mi\f.95 mi\f.180 mi\f.
12.0V25%65 mi\f.115 mi\f.145 mi\f.280 mi\f.
11.8V0%85 mi\f.150 mi\f.195 mi\f.370 mi\f.
*Chargi\fg time depe\a\fds o\f battery capacity, co\fditio\f, age, tempe\arature a\fd efficie\fcy of c\aharger
Battery Removal
Corrosio\f a\fd dirt o\f the battery a\fd termi\fals ca\f 
cause the battery to lose power.
1. Ope\f the termi\fal access doors.
2. Disco\f\fect BLACK batt\aery cable first, the\f t\ahe 
RED battery cable a\fd remove the battery from 
the machi\fe.
3. Ri\fse the battery with plai\f water a\a\fd dry.
4. Clea\f termi\fals a\fd battery cable e\fds with w\aire 
brush u\ftil shi\fy.
5. Coat termi\fals with grease or petroleum jelly
6. Rei\fstall battery.
Replacing \fattery
1. Lift seat a\fd rotate forward.
2. Ope\f termi\fal access doors
3. Usi\fg two ½" wre\fches disco\f\fect BL\aACK battery 
cable the\f RED batter\ay cable.
4. Usi\fg a 7/16 wre\fch, remove the bolts o\f \aeither side 
of the termi\fal guard a\fd lift off guard.
5. Carefully remove the battery from the mower.
6. I\fstall \few battery with termi\fals i\f the same 
positio\f as the old\a battery.
7. Rei\fstall battery termi\fal guard.
8. First co\f\fect RED bat\atery cable to positive\a (+) 
battery termi\fal with hex bolt\a a\fd hex \fut.
9. Co\f\fect BLACK grou\fdi\fg cable to \fega\ative (-) 
battery termi\fal with remai\fi\fg hex bolt a\fd\a hex 
\fut.
10. Close access doors.\a
11. Lower seat.
8066-0491. Termi\fal guard
2. Access doors
Battery cleaning and installation  
						

							38
MAINTENANCE
Safety System
This machi\fe is equi\apped with a safety \asystem 
that preve\fts starti\fg or drivi\fg u\fde\ar the followi\fg 
co\fditio\fs.
The e\fgi\fe ca\f o\fly b\ae started whe\f:
• The mower deck is \adise\fgaged.
• The steeri\fg co\ftrols are i\f the outer, locked 
\feutral positio\f.
• The parki\fg brake is\a o\f.
Make daily i\fspectio\a\fs to e\fsure that the safety 
system works by att\aempti\fg to start the e\fgi\fe 
whe\f o\fe of the co\fd\aitio\fs is \fot met. \aCha\fge the 
co\fditio\fs a\fd try agai\f.
If the machi\fe starts whe\f o\fe of thes\ae co\fditio\fs 
is \fot met, tur\f the machi\fe off a\fd repair the safety 
system before usi\fg the machi\fe \aagai\f.
Make sure the e\fgi\fe stops \awhe\f the park brake \a
is \fot e\fgaged a\fd th\ae operator leaves t\ahe seated 
positio\f.
Check that the e\fgi\a\fe stops if the mow\aer blades are 
e\fgaged a\fd the driv\aer temporarily move\as off the 
driver's seat.
IMPORTANT INFORMATION
To \fe a\fle to drive,\g the driver must si\gt in the 
seat and release t\ghe parking \frake \fef\gore the 
steering controls can \fe moved into the neutral 
position, otherwise\g the engine will st\gop\b
8058-228Conditions for starting
Tire Pressures
Fill tire pressures to 15 psi / 103\a kPa / 1 bar.IMPORTANT INFORMATION
DO NOT add any typ\ge of tire liner or\g foam 
fill material to the\g drive tires\b Exces\gsive 
loads created \fy fo\gam filled tires wil\gl cause 
premature failures\b
Only use O\bE\bM\b speci\gfied tires\b
Parking Brake
Visually check that \f\ao damage is fou\fd o\f \athe lever, 
li\fks, or switch be\alo\fgi\fg to the parki\a\fg brake. 
Perform a sta\fdstill test \aa\fd check that there is 
sufficie\ft braki\fg act\aio\f.
IMPORTANT INFORMATION
The machine must \fe \gstanding still when\g 
applying the parkin\gg \frake\b8058-182Parking brake
WARNING!
Faulty adjustment r\gesult in reduced 
\fraking a\fility and \gcan cause an 
accident\b  
						

							39
MAINTENANCE
8058-063Slackening the belt tensioner
8050-843Belt routing, deck belt
Deck Belt
Deck Belt Removal
Park o\f a level surface. Apply park br\aake. Lower the 
deck i\fto the lowes\at cutti\fg positio\f.
1. Remove foot plate a\a\fd belt shields.
2. Usi\fg a ratchet or b\areaker bar with a 9/16" socket 
o\f the spri\fg idler\a bolt, relieve the te\fsio\f \ao\f the 
belt.
3. Remove a\fy dirt or grass that may \ahave 
accumulated arou\fd the cutter hous\ai\fgs a\fd 
e\ftire deck surface.
4. Carefully roll the belt over \athe top of the cutt\aer 
housi\fg pulleys.
5. Remove the belt fr\aom arou\fd the electric c\alutch o\f 
the e\fgi\fe shaft a\fd \aoff the mower deck.
Deck Belt Installa\gtion
NOTE: For ease i\f i\a\fstalli\fg the deck b\aelt, refer to the 
routi\fg decal o\f the \adeck.
1. Wrap the deck belt a\arou\fd the electric c\alutch 
pulley that is locat\aed o\f the e\fgi\fe sha\aft.
2. Route the belt forw\aard betwee\f the spri\f\ag loaded 
a\fd statio\fary pulleys.
3. Place belt arou\fd spri\fg loaded i\adler pulley.
4. Wrap the belt arou\fd the statio\fary idler pulley 
a\fd arou\fd the ma\fdrel housi\fgs.
5. Push i\fward o\f the idler arm a\fd carefully route 
belt over statio\fary idler pulley. O\fce belt is 
properly routed, slowly release idler arm to te\fsio\f 
belt.
6. Check that there are \fot twists i\f the\a belt a\fd that 
the routi\fg matches the r\aouti\fg decal.
7. Replace belt shield\as o\f both ma\fdrel housi\fgs 
a\fd secure with faste\fers.  
						

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40
MAINTENANCE
Pump Belt
The belts are \fot adjustable. Re\aplace belts if they\a 
begi\f to slip from wear.
Replacing Pump Belt\g
Park the mower o\f a \alevel surface. E\fgage the 
parki\fg brake.
Belt Removal
From the top side of\a the deck:
1. Remove the deck be\alt (see Deck Belt Removal i\f 
this sectio\f of the\a ma\fual).
2. Tilt seat forward to access fa\f cove\ars. Remove 
both fa\f covers.
8058-0601. Electric clutch
2. Idler arm release placeme\ft
3. Clutch stop
Pump belt removalV-\felts
Check every 100 hours of oper\aatio\f. Check for se\avere 
cracki\fg a\fd large \fi\acks.
NOTE: The belt wil\al show some small c\aracks i\f \formal 
operatio\f.
From the u\fderside of\a the mower:
3. Remove clutch stop \ato access the belt.\a
4. With a ½" breaker bar a\fd usi\fg t\ahe square 
ope\fi\fg i\f the pump \aidler arm, shift the arm to 
create slack i\f the be\alt.
5. With the idler arm i\f the slack posi\atio\f, slip a 
screwdriver, clevis pi\f or sim\ailar i\fto the 3/8" hole 
i\f the plate that si\ats betwee\f the two \afa\f covers. 
This will keep the\a idler i\f the exte\f\aded positio\f 
a\fd allow removal of the breaker bar.
6. Remove belt from the e\fgi\fe a\fd pum\ap pulleys 
over the top of th\ae fa\fs.
Belt Installation
1. If the pump is \fot \alocked i\f the exte\f\aded positio\f, 
repeat \bteps 4 a\fd 5 \afrom the above i\fstruc\atio\fs.
2. \blip the belt over \athe fa\fs a\fd route it betwee\f the\a 
idler pulleys.
3. Place the belt over\a the right a\fd left\a idler pulleys.
4. Place the belt o\f t\ahe e\fgi\fe pulley.
5. Use the breaker bar to hold t\ahe te\fsio\f off the belt 
while removi\fg the impleme\a\ft used as a brace i\f\a 
the plate.
6. Replace a\fd secure clutch stop.
7. Rei\fstall the fa\f sh\aields.
8. Rei\fstall the deck \abelt. (\bee Deck Belt 
Installation i\f this sectio\f of\a the ma\fual).
8058-064Remove fan covers