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121913

1-1

REV B

GENERAL INFORMATION

To The New Owner

The purpose of this manual is to assist owners and opera-

tors in maintaining and operating the Big Dog

®

 Mowers Dia-

blo MP BAC-VAC™. Please read it carefully; information and 
instructions furnished can help you achieve years of depend-
able performance.

Using This Manual

This manual contains general operation information as 

well as basic adjustment and maintenance information. 
Since operating conditions vary considerably, all conditions 
cannot be addressed individually. Through training and expe-
rience, operators should develop safe operating practices 
suitable to most conditions.

Directions used in this manual, for example RIGHT or LEFT, 

refer to directions when in the operator position and facing 
forward, unless otherwise stated.

Though current at the time of printing, photographs and 

illustrations shown may vary slightly from your mower due to 
subsequent production changes. Big Dog

®

 Mower Company

reserves the right to redesign and change the machine as 
deemed necessary, without notification. If a change has been 
made to your machine which is not reflected in this manual, 
contact your Big Dog

®

 Mower

 

Dealer for current information.

Warranty Registration

Your Big Dog

®

  Mowers  Dealer  must  register  this  attach-

ment on-line within 

ten (10) days

 following date of purchase 

to validate your warranty protection. As the new equipment 
owner, you should confirm that your Big Dog

®

 Mowers Dealer 

has registered your attachment with Big Dog

®

 Mowers.

Be sure to register the mower plus each attachment that 

displays a model and serial identification number plate with 
Big Dog

®

 Mowers.

IMPORTANT:  

Any unauthorized modification, alteration, 

or use of non-approved attachments voids the warranty and 
releases Big Dog

®

 Mowers from any liability arising from sub-

sequent use of this equipment. Do not use or operate any 
attachment which is not approved by Big Dog

®

 Mowers.

Parts and Service

Use only original Big Dog

®

 Mower replacement parts avail-

able from your local Big Dog

®

 Mower Dealer. For prompt, effi-

cient service, always provide the following information when 
ordering parts:

1.

Correct part description.

2.

Correct part number.

3.

Correct model number.

4.

Correct serial number.

All arrangements for warranty repair and service must be 

handled through an authorized Big Dog

®

 Mower Dealer. 

Summary of Contents for diablo mp bac-vac

Page 1: ...121913 REV B BIGDOG MOWER CO DIABLO MP BAC VAC Operator s Manual 200 South Ridge Road Hesston Kansas 67062...

Page 2: ...REV B 121913...

Page 3: ...ter Assembly 3 3 122171 72 Adapter Assembly 3 4 Mower Preparation 3 5 BAC VAC Mount Assembly 3 5 Frame Cover Assembly Installation 3 6 Final Connection 3 10 BAC VAC Assembly 3 10 Weight Assembly 3 12...

Page 4: ...REV B toc 2 121913...

Page 5: ...ange has been made to your machine which is not reflected in this manual contact your Big Dog Mower Dealer for current information Warranty Registration Your Big Dog Mowers Dealer must register this a...

Page 6: ...REV B 1 2 121913...

Page 7: ...brake position Stop the engine Remove the ignition key Wait for the engine and all moving parts to come to a complete stop Always be aware of any obstructions especially small children when backing or...

Page 8: ...tion for those requiring one is shown to help the operator understand the meanings of these decals Specific safety warning decals are located on the equipment near the immediate areas of potential haz...

Page 9: ...apter kits must be used when mounting the BAC VAC to a particular deck Part No Description Qty 120332 BLOWER ASSEMBLY 1 N A WEIGHT ASSEMBLY 1 603935 WIRING HARNESS 1 N A BAC VAC ASSEMBLY 1 N A CONTROL...

Page 10: ...re 3 2 or Figure 3 3 7 Attach the blower assembly to the deck by inserting the rod through the discharge chute bracket and the blower mount and secure with a nut Refer to Figure 3 2 or Figure 3 3 8 Pl...

Page 11: ...7954 FW 406 X 812 X 060 SAE 11 117762 RIGID LINK 5 117758 BLOWER MOUNT 12 601069 CN 312 18 X 20 MAX THK 6 054502 NT 375 16 HX G5 ZNY 13 115773 CENTER DRIVE BRACKET 7 603806 110 5 EL A SEC BELT 14 1176...

Page 12: ...e Existing hardware INDEX NO PART NO DESCRIPTION INDEX NO PART NO DESCRIPTION 1 552082 CENTER DRIVE COVER 8 074252 CS 500 13 X 1 50 HX G5 2 792002 KNOB 5 16 18 X 3 4 9 752386 CW 515 X 2 25 X 204 BLK 3...

Page 13: ...or the opposite side Figure 3 5 5 Attach the mount spacer to the left and right mounts as shown Figure 3 5 6 Tighten all hardware Allow the engine and muffler to cool before assem bling the unit to th...

Page 14: ...clamp hardware Figure 3 10 6 Remove the mower s control panel 7 Locate the auxiliary connector body underneath the control panel and remove the cap Figure 3 11 8 Plug the BAC VAC frame harness connec...

Page 15: ...n the wiring harness to the BAC VAC switch Figure 3 17 14 Attach the left frame cover assembly to the mower frame Figure 3 18 15 Route the BAC VAC frame harness along the left side of the mower frame...

Page 16: ...re 3 14 A Frame harness B Wire ties Figure 3 15 A A A Wire tie B Frame harness C Black wire D Red wire E Battery terminal F Battery terminal Figure 3 16 A Switch B Orange blue wire C Blue wire D Orang...

Page 17: ...121913 3 9 REV B A Frame cover B Existing hardware Figure 3 18 A Frame harness B Wire ties Figure 3 19 A B B B A A Frame harness B Wire ties Figure 3 20 B A...

Page 18: ...The second person to insert the clevis pins flat washers and hair pins through the side mount brackets and the BAC VAC mount tubes Figure 3 22 3 Connect the BAC VAC frame harness connector body to th...

Page 19: ...t lock plate and tighten knobs Figure 3 25 9 Reconnect the negative battery cable 10 Increase the mower s drive tires pressure to 16 psi 110 KPa The drive tires will need to have to the air pressure i...

Page 20: ...NO DESCRIPTION 1 118240 WEIGHT LOCK PLATE 2 792002 KNOB 5 16 18 X 3 4 3 118242 WEIGHT MOUNT 4 604423 UB 375 16 X 2 00 X 4 50 SQ 5 603207 WEIGHT 6 086660 NT 375 16 HXZY NL 7 767954 FW 406 X 812 X 060...

Page 21: ...aged to continue mowing Converting To Side Discharge Mode 1 Park the mower on a flat surface Turn the engine off place the steering control levers in the park brake posi tion and remove the ignition k...

Page 22: ...he mower 1 Park the mower on a flat surface Turn the engine off place the steering control levers in the park brake posi tion and remove the ignition key Be sure the blades have stopped before dismoun...

Page 23: ...s The first person will then pivot the hopper away from the side mount brackets slide the lower hooks off the mount tube and roll it away from the mower 5 Re insert the latching pins into frame mount...

Page 24: ...REV B 4 4 121913...

Page 25: ...bottom of groove If it does bottom out the pulley needs replacing BAC VAC Hopper Use a pressure washer to clean the inside and outside of the hopper Never work on the blower assembly or mower deck wh...

Page 26: ...he plunger depth is adjusted by loosening the two screws repositioning the switch body and then tightening the screws Figure 5 4 Repeat the test and adjustment until the door stops its opening motion...

Page 27: ...m inside the BAC VAC Check for loose or missing hardware tighten or replace Also check for badly worn or damaged parts consider replac ing them at this time Touch up chipped paint areas your dealer ha...

Page 28: ...REV B 5 4 121913...

Page 29: ...warranty Repairs made by unauthorized persons Damage caused by use of the Big Dog mow ers for purposes other than those for which it was designed Damages caused by disasters such as fire flood wind a...

Page 30: ...pply to you No Other Warranties Unless modified in writing signed by both parties and approved by the President of Manufacturer of Big Dog mowers this agreement is understood to be the complete and ex...

Page 31: ...913 7 1 REV B PARTS LIST 60 Deck Adapter 7 2 72 Deck Adapter 7 4 Frame 7 6 Shell 7 8 Lid 7 10 Linkage 7 12 Frame Adapter 7 14 Shell Electric 7 16 Wire Harness 7 18 Blower 552623 S N 14040001 Higher 7...

Page 32: ...REV B 7 2 121913 60 Deck Adapter 1 2 3 8 9 1 12 11 13 1 14 8 9 1 15 8 4 1 5 6 7 10 1 16 17 18 19 1 15 8 20...

Page 33: ...1 DISCHARGE CHUTE DECAL 7 792002 1 KNOB 5 16 18 X 3 4 8 767954 8 FW 379 X 813 X 063 9 054502 6 NT 375 16 HX G5 ZNY 10 603806 1 BELT 110 5 EL A SEC 11 074252 1 CS 500 13 X 1 50 HX G5 12 752386 1 CW 51...

Page 34: ...REV B 7 4 121913 72 Deck Adapter 1 1 11 14 2 3 4 8 12 13 15 8 18 9 8 1 9 5 6 7 10 1 19 1 20 15 8 1 1 16 17...

Page 35: ...624 1 DISCHARGE CHUTE DECAL 7 792002 1 KNOB 5 16 18 X 3 4 8 767954 10 FW 379 X 813 X 063 9 054502 6 NT 375 16 HX G5 ZNY 10 604703 1 BELT 119 EL 11 074252 1 CS 500 13 X 1 50 HX G5 12 752386 1 CW 515 X...

Page 36: ...REV B 7 6 121913 Frame 2 1 4 6 3 3 3 2 5...

Page 37: ...e NOTES INDEX NO PART NO QTY DESCRIPTION 1 115706 1 FRAME 2 808485 4 RIVET NUT 5 16 18 THREAD 3 015495 3 GREASE FITTING STRAIGHT 4 603940 2 DFS CATCHER DECAL 5 603967 2 PINCH POINT DECAL 6 808477 2 1...

Page 38: ...REV B 7 8 121913 Shell 2 4 3 1 3 3 16 2 6 6 5 6 5 6 7 11 10 9 12 11 13 14 11 12 15 6 5 6 SHELL FRAME 8 SHELL 5 5 6 17 17 5 5 8 18 8 6 6 8 6...

Page 39: ...27 NT 312 18 HX ZY NL 6 768523 33 FW 343 X 687 X 051 080H 7 603796 1 SHELL 8 034280 6 CS 312 18 X 75 HX G5 9 119743 1 INSIDE BAFFLE 10 115785 1 TOP BAFFLE 11 037887 13 CB 312 18 X 1 00 FULL ZN 12 1157...

Page 40: ...REV B 7 10 121913 Lid 17 1 6 3 9 4 1 2 4 4 3 2 1 1 11 4 3 8 7 10 12 13 14 13 15 1 2 1 2 16 10 3 2 2 3 18 2 1 18 19 19 10 3 4 3 4 5 6 8 21 11 1 20 6...

Page 41: ...18 X 20 MAX THK 7 115882 1 SCREEN 8 016253 3 CB 312 18 X 75 FUL ZN 9 115846 1 BOTTOM PLATE 10 037887 12 CB 312 18 X 1 00 FULL ZN 11 079210 3 FW 344 X 1 00 X 06 ZNYC 12 016410 2 CS 375 16 X 2 00 G5 ZNY...

Page 42: ...REV B 7 12 121913 Linkage 3 2 6 1 4 2 5 8 7 2 2 3 5 SHELL ASSEMBLY LID ASSEMBLY...

Page 43: ...T NO QTY DESCRIPTION 1 603879 3 HINGE PIN 2 767954 12 FW 379 X 813 X 063 3 603332 6 CLIP 4 603113 2 CB 375 13 X 1 25 G5 ZN 5 054502 4 NT 375 16 HX G5 ZNY 6 603878 2 TURNBUCKLE 7 073858 2 FW 406 X 75 X...

Page 44: ...REV B 7 14 121913 Frame Adapter 1 14 2 3 2 1 4 2 8 7 2 6 2 4 5 6 2 7 12 17 16 15 14 15 2 4 9 10 10 11 10 10 9 22 19 20 15 23 18 21 13 2 4...

Page 45: ...9 053702 2 CE 620 X 3 0 X 15 X 2 84 10 704783 4 FW 625 X 1 50 X 105 ZN 11 023036 2 HP 148 X 2 69 ZN 12 792002 2 KNOB 5 16 18 X 3 4 13 114323 1 WEIGHT LOCK PLATE 14 086660 6 NT 375 16 HX ZY NL 15 7679...

Page 46: ...REV B 7 16 121913 Shell Electric 4 2 7 3 13 5 3 1 1 6 8 9 10 11 10 9 7 6 4 3 2 3 4 1 2 4 3 12 4 14 14 15 16 15 1 17 SHELL ASSEMBLY SHELL FRAME 18 19 20...

Page 47: ...22 2 NUT PLATE 420 CENTERS 7 603937 2 PLUNGER SWITCH 8 116200 1 CONTROL BOX SWITCH 9 768515 2 FW 281 X 625 X 051 080 HD ZN YL 10 064329 2 CS 250 20 X 625 HX G5 11 063198 4 CS 10 24 X 75 HX FLK ZN 12 0...

Page 48: ...REV B 7 18 121913 Wire Harness 10 1 2 6 1 9 9 7 7 5 4 3 6 8 7 8...

Page 49: ...553164 1 FRAME COVER WITH DECAL 2 600899 1 PUMP BELT WARNING DECAL 3 604049 1 HOPPER POSITION DECAL 4 797308 1 ROCKER SWITCH 5 785139 1 LS STEERING DECAL 6 601069 3 CN 312 18 X 20 MAX THK 7 767954 1...

Page 50: ...REV B 7 20 121913 Blower 552623 S N 14040001 Higher 1 5 2 3 2 3 2 3 2 3 2 3 4 6 13 8 9 10 11 12 2 3 5 2 3 3 2 5 5 5 5 7 14 8 3 2 15 2 3 16...

Page 51: ...051 080H 4 119870 1 TOP WRAPPER INSERT 5 016253 27 CB 312 18 X 75 FUL ZN 6 119871 1 BOTTOM WRAPPER INSERT 7 119510 1 BLOWER IMPELLER 8 604264 2 BEARING 1 0 BORE FLANGE 9 602912 1 PULLEY 10 712919 1 FW...

Page 52: ...REV B 7 22 121913 Blower 552623 S N 14040001 Higher 21 18 19 20 17 22 3 23 24 25 26 28 27 29 30 28 31 26 32 2 3 32 32 33 34 11 35 36 5 37 11 34 33 32 38...

Page 53: ...COVER 24 601069 2 CN 312 18 X 20 MAX THK 25 054502 1 NT 375 16 HX G5 ZNY 26 767954 3 FW 379 X 813 X 063 27 603191 1 BLOWER CHUTE INLET 28 025395 3 CB 375 16 X 1 00 G5 ZNY 29 774919 2 CS 375 16 X 50 SO...

Page 54: ...REV B 7 24 121913 Blower 552623 S N 14040001 Higher 40 41 42 43 41 52 53 54 44 45 46 47 48 49 46 45 50 42 41 51 39 41 43 39 55...

Page 55: ...11 X 2 00 HX G5 Z 43 016972 2 NT 625 11 HX G5 ZNYC 44 781567 1 NT 500 13 HX G8 ZY NL 45 767962 2 FW 531 X 1 063 X 175 46 770867 2 BUSHING 47 109549 1 BUSHING 48 036384 1 SPRING 1 4 COIL PL 1 23 49 11...

Page 56: ...REV B 7 26 121913...

Page 57: ...ickup 4 1 Converting To Side Discharge Mode 4 1 Deck Adapter Kits 3 1 Final Connection 3 10 Frame Cover Assembly Installation 3 6 Mower Deck Preparation 3 2 Mower Preparation 3 5 Packing List 3 1 Part...

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