Exmark 790 User manual

For Serial Nos.

790,000 & Higher

Part No. 4500-485 Rev. D

LAZER Z® MODELS

ADVANTAGE SERIES

MODELS

-1-

-2-

READ OPERATOR’S MANUAL BEFORE

OPERATING OR SERVICING EXMARK EQUIPMENT.

TABLE OF CONTENTS

Description Page

Brake Handle Assembly ................................................25

Caster Wheel Assembly ...........................................18-19

Controls Group ..............................................................22

Cutter Housing Assembly ................................5, 8, 11, 14

Decal Group ..................................................................37

Deck Group ................................................................3-15

Deck Support Group......................................................20

Deck Idler Assembly......................................................15

Electrical Diagram ....................................................38-39

Electrical Group .............................................................36

Electrical Logic Schematic........................................40-41

Engine Group ...........................................................30-33

Fuel Tank Group............................................................28

Fuel Tank Assembly ......................................................29

Height of Cut Assembly .................................................21

Hydraulic Group ............................................................34

Mainframe Group...........................................................16

Motion Control Group ...................................................23

Park Brake Group .........................................................24

Pump Idler Assembly.....................................................35

ROPS Assembly............................................................17

Seat Group ....................................................................26

Seat W/Tracks Assembly...............................................27

48” DECK GROUP

-3-

Item Part No. Description Qty.

1 109-9027 Asm, Deck W/Decals 484..................... 1

2 103-6401 Blade-Notched...................................... 3

O103-6391 Blade, Mulching.................................... 3

103-6386 Blade, Low Lift...................................... 3

103-6381 Blade, Solid .......................................... 3

103-6396 Blade, Extreme..................................... 3

3 323-8 Screw, HH 3/8-16 x 1 1/2...................... 18

4 109-2872 Spacer-Pulley ....................................... 2

5 109-0977 Pulley, Idler 5" ...................................... 1

6 109-2796 Pulley, Idler 6" ...................................... 1

7 3231-44 Bolt, Carriage 3/8-16 x 2 1/2................. 2

8 109-6658 Nut, Nyloc 3/8-16 Flg............................31

9 109-2883 Asm, Deck Idler.................................... 1

10 109-7188 Asm, Discharge Chute.......................... 1

10:1 109-2738 Chute, Discharge.................................. 1

10:2 109-8675-01 Bracket, Discharge Chute..................... 1

10:3 3231-22 Bolt, Carriage 3/8-16 x 1....................... 3

Item Part No. Description Qty.

10:4 109-6658 Nut, Nyloc 3/8-16 Flg............................ 3

11 3231-28 Bolt, Carriage 3/8-16 x 1 1/4................. 2

12 109-8070 Belt, V-B X 175.75................................ 1

13 109-6982 Wireform, Cover................................... 2

14 109-6935 Cover, Belt RH 46-56 ........................... 1

15 109-6936 Cover, Belt LH 46-56............................ 1

16 116-0133 Extension-Spring.................................. 1

17 109-9010-01 Baffle, Discharge.................................. 1

18 3231-22 Bolt, Carriage 3/8-16 x 1....................... 2

19 109-9851 Axle, Anti-Scalp Roller.......................... 3

20 1-603299 Roller-Scalp, Anti ................................. 3

21 98-5975 Washer, Spring Disc 3/8 ...................... 3

22 3211-46 Screw, HH 3/8-24 x 2 Gr8 .................... 3

23 103-7263 Kit, Antiscalp Roller.............................. 3

24 109-9017 Kit, Cutter Housing 48 .......................... 3

25 109-9642 Asm, Deck Complete 484 .................... 1

Exmark red touch up paint (spray paint – P/N 1-850337 - .6 oz liquid bottle – P/N 103-9140).

ORequires installation of Micro-Mulch accessory for proper mulching. Mulch kit P/N MK484.

QApply Mobil HTS grease (P/N 103-5217 1.5 oz packet) (or a food-grade anti-seize) between the spindles and bearings. DO NOT use a

copper or nickel based anti-seize.

48” DECK W/DECALS ASSEMBLY – 109-9027

-4-

Item Part No. Description Qty.

2 1-303508 Decal-Warning, Discharge ..................... 1

3 1-403005 Decal-Danger......................................... 2

4 1-633922 Decal, Antiscalp ..................................... 1

5 98-5954 Decal-Cover, Missing ............................. 2

Item Part No. Description Qty.

6 109-3148 Decal, Bolt Torque................................. 1

7 116-0033 Decal, Ultracut 48 Series 4 .................... 1

8 109-9361 Decal, Belt Routing................................ 1

CUTTER HOUSING ASSEMBLY – 109-9017

-5-

Item Part No. Description Qty.

1 103-1330 Guard, Bearing Top ............................... 1

2 103-2535 Spacer, Guard Bottom ........................... 1

3 103-2802 Washer, Spring Disc 3/4 ........................ 1

4 103-2982 Key, Machine 1/4 x 3/16 x 3/4 ................ 1

5Q 103-9086 Kit, Splined Spindle ............................... 1

6 103-3037 Bushing, Splined.................................... 1

Item Part No. Description Qty.

7 103-8353 Housing, Cutter ..................................... 1

8 109-9220 Screw, SEMS 1/2-20 x 2.19................... 1

9 116-1444 Sheave, Blade Drive ............................. 1

10 3217-46 Nut, Hex 3/4-16 Heavy .......................... 1

11 103-8280 Kit, Cutter Housing ................................ 1

Apply Mobil HTS grease (P/N 103-5217 1.5 oz packet) (or a food grade antiseize) between the jackshaft and bearings, jackshaft and

sheaves, spindles and bearings, spindles and sheaves, and under top bearing guard. DO NOT use a copper or nickel based antiseize.

QKit includes items 3, 4, 6, 8, & 10.

52” DECK GROUP

-6-

Item Part No. Description Qty.

1 109-9012 Asm, Deck W/ Decals 524.................... 1

2 1-603299 Roller, Scalp, Anti................................. 3

3 98-5975 Washer, Spring Disc 3/8....................... 3

4 116-0133 Extension-Spring .................................. 1

5 109-9851 Axle, Anti-Scalp Roller.......................... 3

6 103-6402 Blade-Notched...................................... 3

O103-6392 Blade, Mulching.................................... 3

103-6387 Blade, Low Lift...................................... 3

103-6382 Blade, Solid .......................................... 3

103-6397 Blade, Extreme..................................... 3

7 109-0977 Pulley, Idler 5" ...................................... 1

8 109-2796 Pulley, Idler 6” ...................................... 1

9 109-2872 Spacer-Pulley ....................................... 2

10 109-2883 Asm, Deck Idler.................................... 1

11 109-4994 Belt, V-B ............................................... 1

12 109-6658 Nut, Nyloc 3/8-16 Flg............................31

13 109-6935 Cover, Belt RH 46-56 ........................... 1

Item Part No. Description Qty.

14 109-6936 Cover, Belt LH 46-56............................ 1

15 109-6982 Wireform-Cover.................................... 2

16 109-7188 Asm, Discharge Chute ......................... 1

16:1 109-2738 Chute, Discharge ................................. 1

16:2 109-8675-01 Bracket, Discharge Chute .................... 1

16:3 3231-22 Bolt, Carriage 3/8-16 x 1....................... 3

16:4 109-6658 Nut, Nyloc 3/8-16 Flg............................ 3

17 109-9915-01 Baffle, Discharge 52/60 ........................ 1

18 323-8 Screw, HH 3/8-16 x 1 1/2 ..................... 18

19 3211-46 Screw, HH 3/8-24 x 2 Gr8 .................... 3

20 3231-22 Bolt, Carriage 3/8-16 x 1....................... 2

21 3231-28 Bolt, Carriage 3/8-16 x 1 1/4................. 2

22 3231-44 Bolt, Carriage 3/8-16 x 2 1/2................. 2

23 103-7263 Kit, Antiscalp Roller.............................. 3

24 109-9018 Kit, Cutter Housing 52 .......................... 3

25 109-9644 Asm, Deck Complete 524 .................... 1

Exmark red touch up paint (spray paint – P/N 1-850337 - .6 oz liquid bottle – P/N 103-9140).

ORequires installation of Micro-Mulch accessory for proper mulching. Mulch kit P/N MK524.

52” DECK W/DECALS ASSEMBLY – 109-9012

-7-

Item Part No. Description Qty.

2 1-303508 Decal, Warning Discharge ..................... 1

3 1-403005 Decal, Danger........................................ 2

4 1-633922 Decal, Antiscalp ..................................... 1

5 98-5954 Decal, Cover Missing ............................. 2

Item Part No. Description Qty.

6 116-0034 Decal, Ultracut 52 Series 4 .................... 1

7 109-3148 Decal, Bolt Torque................................. 1

8 109-9361 Decal, Belt Routing................................ 1

CUTTER HOUSING ASSEMBLY – 109-9018

-8-

Item Part No. Description Qty.

1 103-8353 Housing, Cutter...................................... 1

2 103-2535 Spacer, Guard Bottom ........................... 1

3Q 103-9086 Kit, Splined Spindle................................ 1

4 103-2982 Key, Machine 1/4 x 3/16 x 3/4 ................ 1

5 103-1330 Guard, Bearing Top ............................... 1

6 116-0186 Sheave, Blade Drive .............................. 1

Item Part No. Description Qty.

7 103-2802 Washer, Spring Disc 3/4........................ 1

8 3217-46 Nut, Hex 3/4-16 Heavy .......................... 1

9 103-3037 Bushing, Splined ................................... 1

10 109-9220 Screw, SEMS 1/2-20 x 2.19................... 1

11 103-8280 Kit, Cutter Housing ................................ 1

Apply Mobil HTS grease (P/N 103-5217 1.5 oz packet) (or a food grade antiseize) between the jackshaft and bearings, jackshaft and

sheaves, spindles and bearings, spindles and sheaves, and under top bearing guard. DO NOT use a copper or nickel based antiseize.

QKit includes items 3, 4, 6, 8, & 10.

60” DECK GROUP

-9-

Item Part No. Description Qty.

1 109-9013 Asm, Deck W/ Decals 604.................... 1

3 103-6403 Blade, Notched .................................... 3

O103-6393 Blade, Mulching.................................... 3

103-6388 Blade, Low Lift...................................... 3

103-6383 Blade, Solid .......................................... 3

103-6398 Blade, Extreme..................................... 3

4 109-2872 Spacer-Pulley ....................................... 2

5 109-2796 Pulley, Idler 6" ...................................... 1

6 109-2883 Asm, Deck Idler.................................... 1

7 109-0996 Pulley, Idler 8"Flat ................................ 1

8 109-8073 Belt, V-5V ............................................. 1

9 116-0133 Extension-Spring .................................. 1

10 3231-44 Bolt, Carriage 3/8-16 x 2 1/2................. 2

11 109-6658 Nut, Nyloc 3/8-16 Flg............................37

12 109-9915-01 Baffle, Discharge 52/60 ........................ 1

13 3231-22 Bolt, Carriage 3/8-16 x 1....................... 2

Item Part No. Description Qty.

14 109-6982 Wireform-Cover.................................... 2

15 116-0094 Cover-Belt, RH ..................................... 1

16 109-6938 Cover-Belt, LH...................................... 1

17 109-7188 Asm, Discharge Chute ......................... 1

17:1 109-2738 Chute, Discharge ................................. 1

17:2 109-8675-01 Bracket, Discharge Chute .................... 1

17:3 3231-22 Bolt, Carriage 3/8-16 x 1....................... 3

17:4 109-6658 Nut, Nyloc 3/8-16 Flg............................ 3

18 3231-28 Bolt, Carriage 3/8-16 x 1 1/4................. 2

19 109-9851 Axle, Anti-Scalp Roller.......................... 4

20 1-603299 Roller-Scalp, Anti ................................. 4

21 98-5975 Washer, Spring Disc 3/8 ...................... 4

22 3211-46 Screw, HH 3/8-24 x 2 Gr8 .................... 4

23 103-7263 Kit, Antiscalp Roller.............................. 3

24 109-9019 Kit, Cutter Housing 60 .......................... 3

25 109-9646 Asm, Deck Complete 604 .................... 1

Exmark red touch up paint (spray paint – P/N 1-850337 - .6 oz liquid bottle – P/N 103-9140).

ORequires installation of Micro-Mulch accessory for proper mulching. Mulch kit P/N MK604.

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