Husqvarna MZ52 User manual

MZ52 / 967277401
Parts Manual
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
Gasoline containing up to 10% ethanol
(E10) is acceptable for use in this
machine.The use of any gasoline
exceeding 10% ethanol (E10) will void
the product warranty.

©2013 All rights reserved.
Orangeburg SC. Printed in U.S.A.
When you need spare parts or support in service
questions, warranty issues, etc., please consult
the following professional:
Manufacturing Number
The machine’s manufacturing number can be found on
the printed plate affixed to the engine compartment.
Stated on the plate, from the top are:
• The machine’s type designation (I.D.).
• The manufacturer’s type number (Model).
• The machine’s serial number (Serial no.)
Please have the type designation and serial number
available when ordering spare parts.
This manual belongs to the machine with the
manufacturing number:
Engine Transmission
The engine’s manufacturing number is stamped on
one of the valve covers.
The plate states:
• The engine’s model.
• The engine’s type.
• Code
Please have these available when ordering spare
parts.
The wheel motors and hydrostatic pumps have a
barcode decal affixed at the rear.
Accessories Available
Collection System ----------------------------- 966 793001
Mulch Kit ----------------------------------------- 965 894001

CONTENTS
NOTE: ALL FASTENERS ARE GRADE 5 UNLESS OTHERWISE SPECIFIED.
FRAME ..................................................................... 4
ENGINE PLATE ........................................................ 6
STEERING ............................................................... 8
IGNITION ................................................................ 10
PARKING BRAKE .................................................. 12
HYDRAULIC PUMP-MOTOR ................................. 14
WHEELS ................................................................ 16
MOWER LIFT / DECK LIFT .................................... 18
MOWER DECK / CUTTING DECK ........................ 20
SEAT ...................................................................... 22
DECALS ................................................................. 24
ACCESSORIES ...................................................... 26
Blower .............................................................. 26
Bagger ............................................................. 28
Chutes .............................................................. 30
Guard, Mount and Belt ..................................... 32
Mulch Kit .......................................................... 34

4
FRAME
7
2
1
25
4
3
26
6
24
18
12
5
23
13
27
20
30
15
31
19
8
14
17
17
23
27
22
27
19
10
25
11
16
21
27
27
27
28
9
17
29
19

5
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
FRAME
1.. 575 017202 ....1 .... PLATE, BATTERY, BLK
2.. 575 348402 ....1 .... GUARD, REAR GRY
3.. 577 256802 ....1 .... PANEL, LT ORG
4.. 577 256902 ....1 .... PANEL, RT ORG
5.. 539 132744 ....1 .... PLATE w/ SAFTY DECAL
6.. 539 132380 ....1 .... PLATE, FOOTREST ORG
7.. 539 131579 ....1 .... SIDE, RT ORG
8.. 539 131577 ....1 .... SIDE, LT ORG
9.. 539 104763 ....8 .... RETAINER, U TYPE 5/16-18
10.. 539 132859 ....1 .... SHIELD, HEAT
11.. 575 245202 ....2 .... BRACKET, DAMPENER
12.. 575 230402 ....1 .... SHIELD, MUFFLER BLK
13.. 505 256401 ....2 .... STOP, DECK
14.. 575 533602 ....2 .... MOUNT, TANK BLK
15.. 539 102587 ....5 .... BUMPER
16.. 539 104411 ....1 .... KNOB w/ STUD
17.. 539 107475 . . 12 .... BOLT 5/16-18 x ¾ THD FRM
18.. 539 102335 ....2 .... HCS 5/16-18 x 4
19.. 525 464701 ....5 .... HHFS 5/16-18 x ¾
20.. 539 131780 ....4 .... HHFS 5/16-18 x 3¾
21.. 525 544001 ....1 .... HHFS 5/16-18 x 1¼ TPBLT
22.. 539 131781 ....2 .... HHFS 3/8-16 x 2¾
23.. 539 133006 ....4 .... HHFS 3/8-16 x 2½
24.. 539 109117 ....2 .... RHSNB 3/8-16 x ¾
25.. 539 990316 ....6 .... RHSNB 5/16-18 x ¾
26.. 539 990208 ....3 .... RHSNB 5/16-18 x 1
27.. 539 112899 . . 12 .... NUT 5/16-18 HEX FLANGE NYL
28.. 521 996501 ....2 .... NUT 3/8-16 HEX FLG NYLOC
29.. 539 200282 ....6 .... NUT 3/8-16 HEX JAM NYLOC
30.. 539 990250 ....1 .... WASHER
31.. 539 990188 ....2 .... WASHER 5/16 SAE FLAT

6
ENGINE PLATE
1
2
3
4
5
7
8
9
10
11
26
15
16
41
19
20
21
22
23
24
25
40
6
28
29
30
31
32
33
34
35
36
37
38
40
41
42
43
44
39
46
48
49
50
27
14
13
44
17
45
43
28
47
40
12
18
49
41
51
16

7
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
ENGINE PLATE
1.. 574 846302 ....1 .... PLATE, ENGINE BLK
2.. 574 846402 ....1 .... PLATE, IDLER SUPPORT BLK
3.. 574 870901 ....1 .... BELT, HYDRO
4.. 574 811001 ....1 .... PULLEY
5.. 539 976688 ....1 .... PULLEY, IDLER
6.. 539 107620 ....1 .... PULLEY, IDLER SECONDARY
7.. 510 041603 ....1 .... ARM, IDLER w/ BEARINGS
8.. 532 146699 ....1 .... EXHAUST TUBE, RT
9.. 532 146700 ....1 .... EXHAUST TUBE, LT
10.. 510 206301 ....1 .... PIVOT, BEARING
11.. 525 435601 ....1 .... PIVOT, IDLER
12.. 574 607001 ....1 .... CLUTCH
13.. 539 104763 ....4 .... RETAINER, U TYPE
14.. 510 254401 ....1 .... SPRING, PUMP
15.. 539 114662 ....1 .... SHIELD, DUST
16.. 510 254501 ....2 .... SHIELD, DUST
17.. 539 912757 ....1 .... KEY ¼ SQ x 1¼
18.. 575 229902 ....1 .... BRACKET, MUFFLER BLK
19.. 539 131604 ....1 .... MUFFLER
20.. 539 101714 ....1 .... SOLENOID
21.. 575 017302 ....1 .... STOP, CLUTCH
22.. 539 102759 ....3 .... INSULATOR
23.. 584 825501 ....1 .... HOSE, DRAIN
24.. 539 102757 ....1 .... CABLE, POSITIVE
25.. 539 101363 ....1 .... CLAMP
26.. 539 990302 ....2 .... SCREW ¼-20 x 3/8 THD FRM
27.. 525 866201 ....1 .... HHFS 3/8-16 x 2
28.. 525 464701 ....9 .... HHFS 5/16-18 x ¾
29.. 532 120616 ....4 .... HHFS 3/8-16 x 1 THD FRM
30.. 539 990071 ....1 .... HCS ¼-20 x ½
31.. 581 332802 ....1 .... HCS 7/16-20 x 2½
32.. 539 103433 ....1 .... HCS ½-13 x 3¼
33.. 539 990209 ....2 .... HCS 5/16-18 x 1
34.. 539 976934 ....4 .... HCS 5/16-18 x ¾
35.. 539 100413 ....1 .... RHSNB 3/8-16 x 1¼
36.. 539 107271 ....2 .... RHSNB 5/16-18 x 1
37.. 539 130235 ....1 .... RHSNB 3/8-16 x 2¾
38.. 539 107475 ....2 .... BOLT 5/16-18 x ¾ THD FRM
39.. 521 991101 ....1 .... NUT ½-13 FLG NYLOC
40.. 539 108120 ....4 .... NUT ¼-20 THIN NYLOC
41.. 539 112899 . . 13 .... NUT 5/16-18 HEX FLG NYLOC
42.. 539 990613 ....1 .... NUT 3/8-16 WHIZLK
43.. 539 200282 ....4 .... NUT 3/8-16, JAM NYLOC
44.. 521 996501 ....2 .... NUT 3/8-16 FLG NYLOC
45.. 539 111897 ....1 .... WASHER 3/8 SPECIAL
46.. 539 990247 ....1 .... WASHER 7/16 SLW
47.. 539 990188 ....2 .... WASHER 5/16 SAE
48.. 539 990053 ....2 .... WASHER ¼ INT TOOTH LK
49.. 539 109554 ....2 .... WASHER ½
50.. 539 115528 ....1 .... WASHER ½ BELLEVILLE
51.. 539 109562 ....1 .... WASHER 3/8
52.. 539 111897 ....1 .... WASHER 3/8 SPECIAL
NOT SHOWN
539 107516 ....1 .... PIGTAIL

8
STEERING
14
7
5
4
2
13
8
13
15
21
19
6
16
20
17
9
22
24
18
23
23
10
12
11
30
28
27
27
27
30
30
29
27
29
30
25
18
18
26

9
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
STEERING
1.. 539 132009 ....1 .... LEVER w/ GRIP RT
2.. 539 132010 ....1 .... LEVER w/ GRIP LT
3.. 539 130894 ....2 .... GRIP, FOAM
4.. 577 251701 ....2 .... BRACKET, CONTROL
5.. 539 131518 ....4 .... BEARING, FLANGE
6.. 576 140301 ....2 .... LEVER, CONTROL
7.. 577 420001 ....2 .... LEVER, HANDLE
8.. 577 252401 ....2 .... SPACER, PIVOT CONTROL
9.. 539 102720 ....2 .... DAMPENER
10.. 577 251801 ...2 .... BLOCK, TRACKING
11.. 539 102845 ....1 .... SPRING
12.. 576 850301 ....1 .... SPRING
13.. 539 131799 ....1 .... KNOB
14.. 574 811401 ....2 .... ROD, MOTION CONTROL
15.. 539 116689 ....2 .... COUPLER, ROD END
16.. 539 116690 ....2 .... ROD END LT
17.. 539 115729 ....2 .... ROD END RT
18.. 539 990627 ....5 .... HCS 5/16-18 x 1¼
19.. 539 101332 ....2 .... HCS ½-13 x 2¾
20.. 539 976935 ....4 .... HCS 5/16-18 x 1½
21.. 576 850402 ....2 .... SCREW 5/16-18 X 1¾ BTN HD
22.. 525 464701 ....8 .... HHFS 5/16-18 X ¾
23.. 525 544001 ....4 .... HHFS 5/16-18 x 1¼ TPBLT
24.. 539 990223 ....4 .... NUT 5/16-24 HEX
25.. 539 108010 ....2 .... NUT ½-13 HEX JAM NYL GR2
26.. 539 991073 ....2 .... NUT 5/16-24 HEX JAM LH
27.. 539 112899 . . 10 .... NUT 5/16-18 HEX FLG NYLOC
28.. 539 990717 ....6 .... NUT 5/16-18 HEX NYLOC
29.. 539 990585 ....4 .... NUT 5/16-18 HEX WHIZLK
30.. 539 990188 . . 12 .... WASHER 5/16 SAE FLT

10
IGNITION
3
4
11
10
13
46
17
18
21
22
45
24
25
15
37
42
43
38
26
30 8
2
1
40
20 23
16
46
44
9
14
5
6
27
28
29
36
39
35
43
43
42
7
34
33
32
31
19
12