Exmark Lawn Mower 4500 421 User Manual

ULTRA VAC® QDS  
LAZER Z® HP MODELS  
For Serial Nos.  
790,000 & Higher  
Part No. 4500-421 Rev. B  
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READ OPERATOR’S MANUAL BEFORE  
OPERATING OR SERVICING EXMARK EQUIPMENT  
TABLE OF CONTENTS  
Description  
Page  
Blower Assembly 44” and 48” ......................................3-6  
Blower Assembly 46”, 50”, 52” and 56” ......................7-10  
Decals ...........................................................................16  
Deck Components and Front Weights ...........................15  
Hood and Screen Assembly ..........................................13  
Lower Hopper Assembly...........................................11-12  
Hopper Assembly ..........................................................14  
2
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BLOWER ASSEMBLY 44” and 48”  
Item Part No.  
Description  
Qty.  
Item Part No.  
22 3219-6  
Description  
Qty.  
16 103-2874-03 Wld, Blower Mount.................................1  
Nut, Hex 5/8-18...................................... 1  
Nut, Jam 1/2-20..................................... 1  
Washer, Spring Disk.............................. 1  
Spacer................................................... 1  
Hub........................................................ 1  
Nut, Whizlock 5/16-18............................ 6  
Nut, Hex 5/16-18.................................... 1  
Screw, HH 1/4-20 x 5/8.......................... 4  
Nut, Whizlock 1/4-20.............................. 4  
Washer, Spring Disk 5/16 ...................... 1  
Washer, 3/8 SAE ................................... 1  
Bushing, Locator.................................... 1  
Key, Woodruff #61 5/8 x 3/16................. 1  
Cover, Bearing (103-3586-03)  
2
103-3815  
31-653346  
1-513013  
5103-1047  
Wld, Impeller .........................................1  
Bearing, SPH. OD..................................2  
Housing, Flange.....................................4  
Sheave, Blower......................................1  
Wld, Upper Housing  
23 3220-5  
24 1-513435  
25 1-653365  
26 1-653366  
27 32128-20  
28 3217-6  
4
6
103-3589  
(1-652345-03) With Decals ....................1  
Spring, Idler ...........................................1  
Nut, Whizlock 3/8-16..............................5  
Screw, HH 3/8-16 x 1 1/4.......................1  
Bearing ..................................................2  
Screw, HH 3/8-16 x 2 1/2.......................2  
Washer, 3/8 Std .....................................1  
Screw, HH 3/8-16 x 1 1/2.......................1  
Latch, Grass Catcher .............................1  
Nut, Nyloc 3/8-16 ...................................1  
Pulley, Idler............................................1  
Bushing, Idler Pivot ................................1  
Pulley, Idler............................................1  
Asm , Idler W/Bushings  
7
8
9
1-653331  
3290-357  
323-7  
29 321-3  
30 32128-33  
31 1-303334  
32 3256-24  
33 103-0126  
34 3257-32  
35 103-3585  
10 1-653600  
11 323-12  
12 3256-4  
13 323-8  
14 1-353054  
15 3296-39  
16 1-653322  
17 103-0130  
18 103-1103  
19 103-2876  
With Decal............................................. 1  
Nut, Nyloc 5/16-18................................. 2  
Washer, 5/16 Std................................... 2  
Screw, Socket HD 5/16-18 x 1 1/4 ......... 1  
Zerk, 1/8-28 Straight.............................. 1  
Roll pin .................................................. 1  
Pin, Grass Catcher ................................ 1  
Screw, Socket But HD 3/8-16 x 1 3/4..... 1  
36 3296-47  
37 3256-3  
38 3274-18  
39 302-19  
40 1-806323  
41 1-353050  
42 3274-107  
Zerk, & Decal.........................................1  
Bolt, Carriage 5/16-18 x 5/8 ...................6  
Washer, Spring Disk ..............................1  
20 3230-18  
21 1-513208  
Exmark black touch up spray paint – gloss black.  
Kit 103-0583 is available to repair the welded-on accessory mounting tube on all 44”-72” decks.  
6
Apply Mobil HTS grease (P/N 103-5217 1.5 oz packet) (or a food-grade antisieze) on bore of sheave and bearings.  
Includes items 40 and 41.  
3
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BLOWER ASSEMBLY 44” and 48”  
4
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BLOWER ASSEMBLY 44” and 48” (cont.)  
Item Part No.  
Description  
Qty.  
Item Part No.  
14 3256-14  
15 1-653429  
16 103-0401  
Description  
Qty.  
1
2
3
4
5
6
7
8
9
3290-357  
323-11  
Nut, Whizlock 3/8-16..............................3  
Screw, HH 3/8-16 x 2 1/4.......................3  
Washer, 3/8 Std .....................................3  
Chute, Blower ........................................1  
Washer, #10 Std.................................... 4  
Asm, Latch............................................. 2  
Asm, Blower (44 & 48) (Includes All  
3256-4  
103-4764  
Items From Pg 3 & Items 1-15 & Decals) ...1  
Bolt, Carriage 1/4-20 x 3/4..................... 2  
Screw, PPH #10-24 x 5/8....................... 2  
Nut, Nyloc #10-24................................. 3  
Washer, #10 Std.................................... 5  
Tube, Lower........................................... 1  
Tube, Upper........................................... 1  
Screw, Slotted HH #10-24 x 3/4............. 3  
1-653352-01 Bumper..................................................1  
17 3229-1  
3290-500  
321-3  
Screw, PPH #10-24 x 5/8.......................4  
Screw, HH 1/4-20 x 5/8..........................4  
Nut, Whizlock 1/4-20..............................11  
Bolt, Carriage 1/4-20 x 5/8 .....................3  
Screw, CRTH #10-24 x 3/4 ....................3  
Nut, Whizlock #10-24.............................3  
Screw, CRTH 1/4-20 x 3/4 .....................2  
18 3290-500  
19 3296-2  
32128-33  
3229-11  
20 3256-14  
21 109-2040  
22 109-2034  
23 32105-13  
10 1-803075  
11 3290-148  
12 1-803076  
24 103-4752-03 Plate, Reinforcement ............................. 1  
25 114439 Rivet ...................................................... 3  
13 1-653596-03 Plate, Blower Backing ............................1  
Exmark red touch up paint (spray paint - P/N 1-850337 - .6 oz liquid bottle - P/N 103-9140).  
Exmark black touch up spray paint – gloss black.  
Kit 103-0583 is available to repair the welded-on accessory mounting tube on all 44”-72” decks.  
5
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BLOWER ASSEMBLY 44” and 48” (cont.)  
6
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BLOWER ASSEMBLY 46”, 50”, 52” and 56”  
Item Part No.  
Description  
Qty.  
Item Part No.  
21 1-513208  
22 3219-6  
Description  
Qty.  
16 109-1119-03 Wld, Blower Mount.................................1  
Washer, Spring Disk.............................. 1  
Nut, Hex 5/8-18...................................... 1  
Nut, Jam 1/2-20..................................... 1  
Washer, Spring Disk.............................. 1  
Spacer................................................... 1  
Hub........................................................ 1  
Nut, Whizlock 5/16-18............................ 6  
Nut, Hex 5/16-18.................................... 1  
Screw, HH 1/4-20 x 5/8.......................... 4  
Nut, Whizlock 1/4-20.............................. 4  
Washer, Spring Disk 5/16 ...................... 1  
Washer, 3/8 SAE ................................... 1  
Bushing, Locator.................................... 1  
Key, Woodruff #61 5/8 x 3/16................. 1  
Cover, Bearing (103-3586-03)  
2
103-3815  
31-653346  
1-513013  
5103-1047  
Wld, Impeller .........................................1  
Bearing, SPH. OD..................................2  
Housing, Flange.....................................4  
Sheave, Blower......................................1  
Wld, Upper Housing  
23 3220-5  
4
24 1-513435  
25 1-653365  
26 1-653366  
27 32128-20  
28 3217-6  
6
103-3589  
(1-652345-03) With Decals ....................1  
Spring, Idler ...........................................1  
Nut, Whizlock 3/8-16..............................5  
Screw, Socket But HD 3/8-16 x 1 3/4 .....1  
Bearing ..................................................2  
Screw, HH 3/8-16 x 2 1/2.......................2  
Washer, 3/8 Std .....................................1  
Screw, HH 3/8-16 x 1 1/2.......................2  
Latch, Grass Catcher .............................2  
Nut, Nyloc 3/8-16 ...................................1  
Pulley, Idler............................................1  
Bushing, Idler Pivot ................................1  
Pulley, Idler............................................1  
Asm , Idler W/Bushings  
7
8
9
1-653331  
3290-357  
3274-107  
29 321-3  
30 32128-33  
31 1-303334  
32 3256-24  
33 103-0126  
34 3257-32  
35 103-3585  
10 1-653600  
11 323-12  
12 3256-4  
13 323-8  
14 1-353054  
15 3296-39  
16 1-653322  
17 103-0130  
18 103-1103  
19 103-2876  
With Decal............................................. 1  
Nut, Nyloc 5/16-18................................. 2  
Washer, 5/16 Std................................... 2  
Screw, Socket HD 5/16-18 x 1 1/4 ......... 1  
Zerk, 1/8-28 Straight.............................. 1  
Roll pin .................................................. 1  
Pin, Grass Catcher ................................ 1  
36 3296-47  
37 3256-3  
38 3274-18  
39 302-19  
Zerk, & Decal.........................................1  
Bolt, Carriage 5/16-18 x 5/8 ...................6  
40 1-806323  
41 1-353050  
20 3230-18  
Exmark black touch up spray paint – gloss black.  
Kit 103-0583 is available to repair the welded-on accessory mounting tube on all 44”-72” decks.  
6
Apply Mobil HTS grease (P/N 103-5217 1.5 oz packet) (or a food-grade antisieze) on bore of sheave and bearings.  
Includes items 40 and 41.  
7
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BLOWER ASSEMBLY 46”, 50”, 52” and 56”  
8
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BLOWER ASSEMBLY 46”, 50”, 52” and 56” (cont.)  
Item Part No.  
Description  
Qty.  
Item Part No.  
15 3256-14  
16 1-653429  
17 109-1024  
Description  
Qty.  
1
2
3
4
3290-357  
323-11  
Nut, Whizlock 3/8-16..............................3  
Screw, HH 3/8-16 x 2 1/4.......................2  
Washer, 3/8 Std .....................................3  
Chute, Blower (46, 50 & 56)...................1  
Chute, Blower (52) .................................1  
Washer, #10 Std.................................... 4  
Asm, Latch............................................. 2  
Asm, Blower (46, 50 & 56) (Includes All  
Items From Pg 7 & Items 1-16 & Decals) ...1  
Asm, Blower (52) (Includes All  
3256-4  
109-1985  
103-4764  
103-0400  
5
6
7
8
9
109-1122-01 Bumper..................................................1  
Items From Pg 7 & Items 1-16 & Decals) ...1  
Screw, PPH #10-24 x 5/8....................... 2  
Nut, Nyloc #10-24................................. 3  
Washer, #10 Std.................................... 5  
Tube, Lower (46 & 50)........................... 1  
Tube, Lower (52 & 56) ........................... 1  
Tube, Upper........................................... 1  
Screw, Slotted HH #10-24 x 3/4............. 3  
Bolt, Carriage 1/4-20 x 3/4..................... 2  
Screw, HH 3/8-16 x 1 1/4....................... 1  
3290-500  
321-3  
Screw, PPH #10-24 x 5/8.......................4  
Screw, HH 1/4-20 x 5/8..........................4  
Nut, Whizlock 1/4-20..............................11  
Bolt, Carriage 1/4-20 x 5/8 .....................3  
Screw, CRTH #10-24 x 3/4 (46,50&56)..3  
Screw, CRTH #10-24 x 3/4 (52) .............5  
Nut, Whizlock #10-24 (46, 50 & 56)........3  
Nut, Whizlock #10-24 (52)......................5  
Screw, CRTH 1/4-20 x 3/4 .....................2  
18 3290-500  
19 3296-2  
20 3256-14  
21 109-2041  
109-2040  
32128-33  
3229-11  
10 1-803075  
1-803075  
22 109-2035  
23 32105-13  
24 3229-1  
25 323-7  
11 3290-148  
3290-148  
12 1-803076  
13 1-653596-03 Plate, Blower Backing ............................1  
14 1-653443-03 Plate, Filler (52)......................................1  
26 103-4752-03 Plate, Reinforcement ............................. 1  
27 114439 Rivet ...................................................... 3  
Exmark red touch up paint (spray paint - P/N 1-850337 - .6 oz liquid bottle - P/N 103-9140).  
Exmark black touch up spray paint – gloss black.  
Kit 103-0583 is available to repair the welded-on accessory mounting tube on all 44”-72” decks.  
9
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BLOWER ASSEMBLY 46, 50, 52 and 56 (cont.)  
10  
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LOWER HOPPER ASSEMBLY  
Item Part No.  
Description  
Qty.  
Item Part No.  
Description  
Qty.  
1
2
3
4
5
6
7
8
9
109-0329-03 Wld, QDS Frame....................................1  
21 103-4408-03 Stop, Linkage......................................... 2  
103-6294  
103-6295  
Pin, Hinge Pivot .....................................2  
Bearing ..................................................2  
22 103-7828  
23 103-7829  
24 103-5102  
25 107069  
26 3231-4  
27 3256-4  
28 3296-59  
29 322-5  
Panel, Bagger LH .................................. 1  
Panel, Bagger RH.................................. 1  
Panel, Bagger........................................ 1  
Nut, Retainer 1/4-20............................... 6  
Bolt Carriage 3/8-16 x 1 1/2 ................... 2  
Washer, 3/8 Std..................................... 2  
Nut, Nyloc 3/8-16 Thin ........................... 2  
Screw, HH 5/16-18 x 1........................... 4  
Washer, 5/16 SAE ................................. 22  
Nut, Nyloc 5/16-18................................. 12  
Screw, HH 1/4-20 x 3/4.......................... 10  
Washer, 1/4 SAE ................................... 4  
Nut, Whizlock 1/4-20.............................. 10  
Bolt, Carriage 5/16-18 x 1 3/4 ................ 4  
Screw, SH 3/8-16 x 1 1/4....................... 1  
Screw, HH 3/8-16 x 1 1/4....................... 2  
Nut, Nyloc 3/8-16................................... 2  
Bolt, Carriage 5/16-18 x 1...................... 4  
Riviet ..................................................... 14  
103-4820-03 Plate, Hinge ...........................................2  
103-4412-03 Plate, Rear.............................................1  
103-4832  
103-4834-03 Strap, Hold Down...................................1  
103-4402 Bearing ..................................................2  
103-5114-03 Wld, Bellcrank........................................1  
Seal, Door..............................................1  
10 103-4433  
11 103-3202  
Collar, Shaft...........................................1  
Cap, Tube..............................................2  
30 3256-23  
31 3296-29  
32 321-4  
12 103-8835-03 Wld, Link RH..........................................1  
13 103-5111  
14 103-5112  
15 94-8196  
16 32151-61  
17 103-4848  
18 103-4424  
19 103-4431  
20 103-4415  
Wld, Link RH..........................................1  
Wld, Link LH ..........................................1  
Washer, Nylon .......................................6  
Ring, Retaining ......................................6  
Trunnion, Link ........................................2  
Arm, Door Linkage.................................2  
Washer ..................................................2  
Bearing, Linkage Pivot ...........................2  
33 3256-22  
34 32128-33  
35 3230-5  
36 3274-1  
37 323-7  
38 3296-39  
39 3230-2  
40 114439  
11  
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LOWER HOPPER ASSEMBLY  
12  
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HOOD and SCREEN ASSEMBLY  
Item Part No.  
Description  
Qty.  
Item Part No.  
Description  
Qty.  
1X 103-6232  
Asm, Hood.............................................1  
Screen ...................................................1  
8
9
3296-2  
Nut, Nyloc #10-24.................................. 4  
Screw, PPH #10-24 x 7/8....................... 4  
2
3
4
5
6
7
114967  
3250-27  
103-5101-03 Support, Screen.....................................1  
10 103-4406-03 Wld, Door Frame ................................... 1  
114439  
Rivet, Pop 3/16 x 1/2..............................18  
Washer ..................................................14  
Seal, Chute............................................1  
11 103-4828  
12 321-4  
Screen, Door ......................................... 1  
Screw, HH 1/4-20 x 3/4.......................... 20  
Washer, 1/4 SAE ................................... 20  
Nut, Whizlock 1/4-20.............................. 20  
3256-61  
1-653561  
13 3256-2  
14 32128-33  
1-653598-03 Clamp, Seal ...........................................1  
X
Includes items 2,3,4 and 5 riveted together and Decal.  
13  
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HOPPER ASSEMBLY  
Item Part No.  
Description  
Qty.  
Item Part No.  
14 3256-26  
15 1-806003  
16 3219-5  
17 322-9  
Description  
Qty.  
1
2
3
4
5
6
7
8
9
103-4822  
103-4835  
103-4813  
Link, Door ..............................................2  
Anchor, Spring.......................................2  
Spring ....................................................2  
Washer, 1/2 SAE ................................... 2  
Hairpin, Cotter ....................................... 2  
Nut, Hex 1/2-20...................................... 4  
Screw, HH 5/16-18 x 1 3/4 (52).............. 4  
Screw, HH 5/16-18 x 2 1/2..................... 1  
Bolt, Carriage 5/16-18 x 1 1/4 ................ 1  
Knob, 3 Prong........................................ 1  
103-4819-03 Guard, RH..............................................1  
103-4437-03 Guard, LH ..............................................1  
18 322-12  
19 3230-3  
20 1-323385  
103-6271  
103-7115  
321-4  
Asm, Handle W/Grip ..............................1  
Grip........................................................1  
Screw, HH 1/4-20 x 3/4..........................13  
Washer, 1/4 SAE ...................................10  
Nut, Whizlock 1/4-20..............................7  
Bolt, Carriage 5/16-18 x 1 ......................4  
Washer, 5/16 SAE..................................5  
Nut, Nyloc 5/16-18 .................................5  
21 103-4807-03 Wld, Bagger Mount................................ 1  
3256-22  
22 322-5  
Screw, HH 5/16-18 x 1........................... 8  
Nut, Whizlock 5/16-18............................ 8  
Pin, Clevis 1/2 x 2.................................. 2  
Hairpin, Cotter ....................................... 2  
10 32128-33  
11 3230-22  
12 3256-23  
13 3296-29  
23 32128-20  
24 1-808289  
25 1-806005  
26 1-653532-03 Spacer, Counterweight (52 & 56)........... 1  
14  
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DECK COMPONENTS AND FRONT WEIGHTS  
Deck Components:  
Quantity Included in Each Kit  
.
44”  
103-1315  
1
48”  
103-1314  
1
52”  
109-1185  
1
46”  
50”  
56”  
Part No.  
Description  
No.  
1
109-1013  
109-1014  
109-1015  
1-653363  
103-0453  
1-806003  
1-323385  
1-653439  
1-653362  
1-653309  
109-1016  
109-1017  
109-1018  
3256-27  
Pin, Chute Pivot  
Pin, Chute Pivot  
1
1
1
1
1
1
1
1
1
2
3
4
Pin, Hair  
1
2
1
2
1
2
1
Knob, Belt Shield  
Sheave, Blower Drive (52)  
Sheave, Blower Drive (48)  
Sheave, Blower Drive (44)  
Sheave, Blower Drive (46)  
Sheave, Blower Drive (50)  
Sheave, Blower Drive (56)  
Washer, 5/8 SAE  
1
1
1
1
1
1
1
5
6
1
1
1-653438  
1-653333  
1-653332  
103-0866  
109-9249  
103-1316  
103-1318  
109-1019  
109-1020  
109-1021  
322-2  
Belt, Blower (46 & 52)  
Belt, Blower (48)  
1
1
1
1
Belt, Blower (44)  
1
1
Belt, Blower (50)  
1
Belt, Blower (56)  
1
7
Cover, Belt (44 & 48)  
Cover, Belt (52)  
Cover, Belt (46)  
1
Cover, Belt (50)  
1
Cover, Belt (56)  
1
1
1
1
2
8
9
Screw, HH 5/16-18 x 5/8  
Plug  
1
1
1
1
1
1
1
1
1
2
1
1
1
2
103-1279  
109-1022-03  
3230-2  
10  
11  
Strap, Weight mount  
Bolt, Carriage 5/16-18 x 1  
Front Weight Components: (Used on all units)  
12  
13  
14  
6
103-6363  
Asm, Weight (103-6364-01) W/Decals  
2
1
4
4
4
103-6368-01 Plate, Weight Mounting  
322-5  
322-7  
Screw, HH 5/16-18 x 1  
Screw, HH 5/16-18 x 1 1/2  
Hairpin, Cotter  
15  
9335124  
6
52” units with standard weight plate bolted to the front of the floor pan only.  
15  
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DECALS  
Item Part No.  
Description  
Qty.  
Item Part No.  
Description  
Qty.  
1
2
3
4
103-3302  
103-3508  
1-653546  
98-5954  
Decal, Ultra Vac QDS ............................1  
Decal, Warning ......................................1  
Decal, Exmark .......................................1  
Decal, Missing Cover .............................1  
5
6
7
103-6605  
1-653558  
103-6604  
Decal, Weight ........................................ 2  
Decal, Hot Sheave................................. 1  
Decal, Weight Blower............................. 1  
16  
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NOTES  
17  
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SERVICE RECORD  
Date  
Description of Work Done  
Service Done By  
18  
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© 2009 Exmark Mfg. Co., Inc.  
Industrial Park Box 808  
Beatrice, NE 68310  
Part No. 4500-421 Rev. B  
(402) 223-6300  
Fax (402) 223-5489  
Printed In USA  
All Rights Reserved  
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