BigDog diablo mp bac-vac Operator's Manual

BIGDOG® MOWER CO. DIABLO® MP BAC-VAC™
Operator’s Manual
200 South Ridge Road
Hesston, Kansas
121913 REV B
REV B 121913
Table of Contents
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
To The New Owner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Warranty Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Parts and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Safe Operation and Service Precautions. . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Safety and Instruction Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Deck Adapter Kits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Mower Deck Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
122170 (60") Adapter 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
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Collecting and Vacuum Pickup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Unloading the BAC-VAC™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Converting To Side Discharge Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Removing the BAC-VAC™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Maintenance & Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Blower Housing and Flex Tube Maintenance . . . . . . . . . . . . . . . . . . . 5-1
Blower Drive Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
BAC-VAC™ Hopper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
BAC-VAC™ Hopper Switch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Blower Impeller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
BAC-VAC™ Warranty Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
121913 toc-1 REV B
REV B toc-2 121913

GENERAL INFORMATION

To The New Owner

The purpose of this manual is to assist owners and opera­tors in maintaining and operating the Big Dog® Mowers Dia­blo 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.
-
to validate your warranty protection. As the new equipment owner, you should confirm that your Big Dog has registered your attachment with Big Dog
®
Mowers Dealer
®
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 sub­sequent 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 avail­able from your local Big Dog® Mower Dealer. For prompt, effi­cient 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.

Warranty Registration

Your Big Dog® Mowers Dealer must register this attach-
ment on-line within ten (10) days following date of purchase
121913 1-1 REV B
REV B 1-2 121913

SAFETY PRECAUTIONS

DANGER WARNING
This safety alert symbol is used to call attention to a mes­sage intended to provide a reasonable degree of PERSONAL SAFETY for operators and other persons during the normal operation and servicing of this equipment.
– denotes immediate hazards which WILL result in severe personal injury or death.
– denotes a hazard or unsafe practice which COULD result in severe personal injury or death.
This manual uses two other words to highlight information. IMPORTANT calls attention to special mechanical informa tion and NOTE emphasizes general information worthy of special attention.
All operators and mechanics should read this manual, and be instructed about safe operating and maintenance proce dures. If the operators or mechanics cannot read and under­stand English, it is the owner’s responsibility to explain this material to them.
Improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety alert symbol “”, which means DANGER or WARNING
- “personal safety instructions.” Failure to comply with the instructions may result in personal injury or death.
Incorrect usage of this attachment may result in severe injury. Personnel operating and maintaining it should be trained in the proper use and should read the manuals completely and thoroughly before attempting to set-up, operate, adjust, or ser vice this mower.

Safe Operation and Service Precautions

Evaluate the terrain to determine what accessories
and attachments are needed to properly and safely perform the job. Only use accessories and attach­ments approved by the manufacturer.
-
Never leave a running mower unattended. Before leav-
ing the operator’s seat for any reason, including emp­tying the catcher or unclogging the chute:
Always stop on level ground.
Disengage the deck clutch.
Place the steering control levers in the park 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 unloading the hopper.
Always keep safety shields and covers in place, except
for servicing.
Never work on the blower assembly or the mower deck
when the mower’s engine is running.
Never operate machine with the hopper in the open
position except for unloading.
Never attempt high speed maneuvering in crowded or
congested areas.
Always operate with the complete BAC-VAC™ system,
mulching system or side discharge chute in place and in the lowest position.
Always keep clear of the mower blades and attach-
-
-
ments during their operation.
Turn off the blades when not mowing.
Stop the engine before removing the BAC-VAC™ or
unclogging the discharge chute. Never clear the dis charge chute with the engine running. Turn off the engine and be sure the blades have stopped before cleaning. Use a probe to clear a plugged discharge area. Never use your hand!
Clean flammable material from the machine. Prevent
fires by keeping the engine compartment, exhaust area, battery, fuel line, fuel tank and operator’s station clean of accumulated trash, grass clippings, and other debris. Always clean up spilled fuel and oil.
Grass collection system components are subject to
wear, damage and deterioration, which could expose moving parts or allow objects to be thrown. Frequently check components and replace with manufacturer’s recommended parts when necessary.
Never direct discharged material toward anyone. Avoid
discharging material against a wall or obstruction. Material may ricochet back toward the operator. Always disengage the blades and wait for them to stop before crossing gravel drives, walks or roads.
-
121913 2-1 REV B

Safety and Instruction Decals

WARNING
601837
602758
602757
603940
603967
The decals are designed to give the operator brief informa-
tion needed in the daily operation and service of the mower. These decals are not intended to be used in place of this manual but instead are to be used as an extension of this manual. These decals should not be removed or obliterated. Replace these decals if they become unreadable.
It is the owner’s responsibility to make certain that the operators and mechanics read and understand this manual and all decals before operating this mower.
It is also the owner’s responsibility to make certain that the operators and mechanics are qualified and physi cally able individuals, properly trained in the operation of this equipment.
All operators and mechanics must become familiar with the safe operation of the equipment, operator controls and decals.
Never let children or untrained people operate or ser­vice the equipment. Local regulations may restrict the age of the operator.
The owner/user can prevent and is responsible for accidents or injuries occurring to themselves, other people or property.
The owner should also ensure that the operators/ mechanics know that they are responsible for their own safety as well as the safety of other persons within the vicinity. Remember, the operator is responsi ble for accidents or hazards occurring to other people or their property.
Part Number 601837
-
Part Number 602758
Part Number 602757
-
DANGER:
Rotating blades, pulleys & belts
Keep shields and covers in place
while machine is in operation
Keep hands, feet and clothing
away from rotating pulleys and belts.
Read the Operator’s Manual before
attempting to operate this machine.
Wear ear protection, eye protection
and safety shoes when operating this equipment.
DANGER: Rotating impeller
Keep hands, feet and clothing away.
Keep shields or covers in place while the
machine is in operation.
Stop the engine, remove the ignition key.
Engage the park brake.
Use a probe to clear debris from the
blower assembly. Remove blower chute to clear debris from chute.
Never engage the mower deck unless the
entire grass catcher attachment is prop erly installed.
-
Specific safety warning decals are located on the equipment near the immediate areas of potential hazards. These decals should not be removed or obliterated. Replace them if they become non-read
-
able.
The following illustrations show the various safety decals that are located on the mower. A brief explanation, for those requiring one, is shown to help the operator understand the meanings of these decals.
WAR NIN G:
Thrown objects!
Part Number 601624
Never operate the mower deck with side
deflector damaged, altered, removed or in raised position, except when the entire grass catcher attachment or mulching sys tem is being used.
-
Part Number 603940
Part Number 603967
WARNING: Crushing body
Stay clear of the raised hopper door.
Never get between the hopper door and the
hopper container.
Do not reach or climb into the hopper.
Never reach into the hopper door opening or
the hopper door linkage area.
WARNING: Crushing hand or foot
Never reach into the crushing danger zone.
Keep hands and feet away.
REV B 2-2 121913

ASSEMBLY INSTRUCTIONS

These instructions apply to the assembly of the Big Dog
®
Mowers 934463 BAC-VAC™ to a Big Dog® Diablo MP 60” or
72” mower with serial numbers 140400001 and higher.
It is intended that these units be installed by trained Big
®
Dog
Mowers service personnel. If additional assistance is
required, contact the Big Dog
®
Mowers Customer Service
Department.
Directions given in these instructions, for example LEFT
and Right, refer to direction while seated on the mower.
Before proceeding, read through the following instructions to familiarize yourself with them, while at the same time iden tify and inventory kit parts supplied.
Unpack and inspect all parts. Notify the carrier of any ship­ping damages immediately.

Packing List

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 PANEL 1
768523 FW .343 X .687 X .051/.080H 11
036236 CS .312-18 X 1.00 HX G5 7
000331 WIRE TIE 7
086660 NT .375-16 HXZY NL 6
767954 FW .406 X .812 X .060 SAE 6
017616 CS .500-13 X 1.75 HX G5 6
767962 FW .531 X 1.063 X .090 SAE 20
008193 NT .500-13 HX G5 ZNYC 8
078386 FW .510 X 1.750 X .18 ZNYC 2
705954 CS .500-13 X 1.25 HX G5 ZN 6
604423 UB .375-16 X 2.00 X 4.50 SQ 2
053702 CE .620 X 3.0 X .15 X 2.84 2
704783 FW .625 X 1.50 X .105 ZN 4
023036 HP .148 X 2.690 ZN 2
603356 FLEX TUBE 1
115933 LH MOUNT 1
118150 RH MOUNT 1
116714 MOUNT SPACER 1
604576 MUFFLER EXTENSION 1.5" 1
604577 MUFFLER EXTENSION 1.375" 1
769299 SC #10 X.750 PHILLIPS 1
034280 CS .312-18 X .75 HX G5 4
025395 CB .375-16 X 1.00 HX G5 2
017616 CS .500-13 X 1.750 HX G5 6
119745 INLET W/A 1

Deck Adapter Kits

The following adapter kits must be used when mounting
the BAC-VAC™ to a particular deck.
Deck Size Adapter Kit P/N
60” 122170 72” 122171
121913 3-1 REV B
Mower Deck Preparation
A
WARNING
1. Before proceeding:
Park the mower on level ground.
Disengage the deck clutch.
Place the steering control levers in the park brake
position.
Stop the engine.
Remove the ignition key.
Wait for the engine and all moving parts to come
to a complete stop.
Disconnect the negative battery cable.
2. Remove the discharge chute and torsion spring.
NOTE: Retain these parts as they will be re-installed
when the BAC-VAC™ is removed.
3. Release the deck drive belt tension.
4. Remove the existing spindle bolt and pulley from the
center blade spindle.
Replace the pulley with the double pulley and place the new cup washer between the head of the new bolt and the drive pulley. Thread the cup washer and bolt assembly into the spindle shaft. Torque the bolt to 118 ft.-lbs. Refer to
5. Attach the blower baffle to the deck. Refer to Figure 3-2 or Figure 3-3.
6. Assemble the blower mount to the blower assembly. Refer to
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. Place the deck drive belt around the lower pulley of the double pulley. Confirm that the belt is properly routed and seated on all pulleys and idlers. Re-tension the deck drive belt using the spring anchor bracket. Ten sion the belt per the tensioning instructions found in the mower’s General Service Manual.
Figure 3-2 or Figure 3-3.
Figure 3-2 or Figure 3-3.
9. Install and route the blower belt around the blower pul­leys and the upper pulley on the double pulley. This belt is self-tensioning.
A. Blower belt
10. Remove the front right side deck lift chain and attach
the rigid link to the deck lift arm. Refer to Figure 3-3.
Position the center drive bracket on the deck as shown and attach it and the rigid link to the deck.
NOTE: The rigid link must move freely in the top slot and rotate freely in the bottom hole.
11. Attach the center drive cover. Refer to Figure 3-2 or Figure 3-3.
Do not operate the deck without the discharge chute or complete BAC-VAC™ system in place.
-
Figure 3-1
Figure 3-1
Figure 3-2 or
REV B 3-2 121913
2
11
3
4
4
4
5
6
7
9
10
11
12
14
13
3
8
INDEX NO. PART NO. DESCRIPTION INDEX NO. PART NO. DESCRIPTION
1 552081 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 036244 CS .375-16 X 1.00 HX G5 10 603311 DOUBLE DRIVE PULLEY
4 767954 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 117696 BAFFLE
122170 (60") Adapter Assembly
Existing
hardware
Blower
assembly
Existing
hardware
Existing
hardware
Discharge
cover
Outlet tube and
adapter assembly
Existing
hardware
Existing
hardware
Notch
Existing
rod
Torque to 65-
75 ft.-lbs.
Deck discharge
opening
Existing
hardware
1
Existing
hardware
Existing
hardware
121913 3-3 REV B
Figure 3-2

122171 (72") Adapter Assembly

2
11
3
4
4
4
5
6
7
9
10
11
12
14
13
3
Existing
hardware
Blower
assembly
Existing
hardware
Discharge
cover
Outlet tube and
adapter assembly
Existing
hardware
Existing
hardware
Notch
Existing
rod
Deck discharge
opening
8
Existing
hardware
1
Existing
hardware
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 036244 CS .375-16 X 1.00 HX G5 10 603712 DOUBLE DRIVE PULLEY
4 767954 FW .406 X .812 X .060 SAE 11 117768 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 604703 BELT, 119.00" EL 14 117702 BAFFLE
Existing
hardware
Torque to
65-75 ft.-lbs.
REV B 3-4 121913
Figure 3-3

Mower Preparation

WARNING
INDEX
NO.
PART NO. DESCRIPTION
1 604576 MUFFLER EXTENSION 1.5" (KAWASAKI
FX1000 ENGINE)
604577 MUFFLER EXTENSION 1.375" (KAWASAKI
FX850 ENGINE)
2 769299 SC #10 X.750 PHILLIPS
1
2
Muffler outlet tube
INDEX
NO.
PART NO. DESCRIPTION
1 118243 MOUNT SPACER
2 116739 MOUNT, LS
3 116740 MOUNT, RS
4 017616 CS .500-13 X 1.750 HX G5
5 767962 FW .531 X 1.063 X .090 SAE
6 008193 NT .500-13 HX G5 ZNYC
7 078386 FW .510 X 1.750 X .18 ZNYC
8 705954 CS .500-13 X 1.250 HX G5 ZN
6
6
3
7
6
5
2
8
4
1
BAC-VAC™ Mount Assembly
Rear
bumper
8
7
5
5
5
4
5
5
5
Allow the engine and muffler to cool before assem­bling the unit to the mower.
1. Attach the correct muffler extension to the muffler out­let tube using the self tapping screw shown. Figure 3-4
IMPORTANT: Tailpipe and tailpipe extension become very hot during operation. These parts must not be allowed to contact the catcher shell during operation or
while the mower is hot.
2. Remove the two cap screws that attach the left side of
the rear bumper to the mower frame.
3. Attach the left side mount to the rear bumper and the mower frame using the hardware shown.
Figure 3-5
Figure 3-5
4. Repeat steps 2 & 3 for the opposite side. Figure 3-5
5. Attach the mount spacer to the left and right mounts
as shown.
Figure 3-5
Figure 3-4
6. Tighten all hardware.
121913 3-5 REV B
Figure 3-5

Frame Cover Assembly Installation

A
A
A
B
A
B
A
1. Raise the seat and seat platform to allow access to
the area underneath the seat.
2. The BAC-VAC™ frame harness should be routed on the mower as shown.
Figure 3-6
A. Remove this hardware B. Existing left side frame
cover
Figure 3-8
A. Frame harness
Figure 3-6
3. Remove the existing left side frame cover and right
side frame cover from the mower.
Figure 3-8 &
Figure 3-9
A. Right side frame cover
Figure 3-7
4. Unbolt the hose clamp from the mower frame that the
wiring harness to the control panel goes through. Do not remove the wiring harness from the clamp. Figure 3-10
5. Route the BAC-VAC™ frame harness pigtail that has the two connector bodies through the hose clamp and retighten clamp hardware.
6. Remove the mower’s control panel.
Figure 3-10
A. Frame harness B. Hose clamp
Figure 3-9
7. Locate the auxiliary connector body underneath the
control panel and remove the cap.
Figure 3-11
8. Plug the BAC-VAC™ frame harness connector into
the auxiliary plug.
Figure 3-12
9. Secure the BAC-VAC™ frame harness to the main mower harness with a wire tie.
Figure 3-13
10. Re-attach the mower control panel. Make sure that the wiring harnesses are routed through the slot in the bottom of the control panel correctly. Secure the BAC­VAC™ frame harness to the main mower harness. Figure 3-13
11. Re-attach the right frame cover to the mower frame. Figure 3-14
REV B 3-6 121913
A. Cap B. Auxiliary connector
A
B
A
B
A
B
C
A
B
C
body
A. Frame harness B. Wire tie
C. Main mower harness
Figure 3-10
A. Cap B. Auxiliary connector
body
Figure 3-11
12. Route the BAC-VAC™ frame harness as shown and
connect the appropriate wires to the battery terminals. Secure the BAC-VAC™ frame harness to the mower using the wire ties as shown. Make sure that none of the harness will come in contact with any moving parts.
Figure 3-15 & Figure 3-16
13. Attach the three wires on the wiring harness to the BAC-VAC™ switch.
Figure 3-17
Figure 3-12
A. Frame harness
C. Main mower harness
B. Wire tie
Figure 3-13
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 as shown. Secure the harness to the mower using the wire ties as shown.
Figure 3-19 &
Figure 3-20
121913 3-7 REV B
A. Right side frame cover
A
A
C
E
D
F
A
B
A
A
D
C
B
Figure 3-14
A. Wire tie B. Frame harness C. Black wire
A. Switch B. Orange/blue wire
D. Red wire E. – Battery terminal F. + Battery terminal
Figure 3-16
C. Blue wire D. Orange/white wire
Figure 3-17
A. Frame harness B. Wire ties
Figure 3-15
REV B 3-8 121913
A. Frame cover B. Existing hardware
A
B
B
B
A
B
A
Figure 3-18
A. Frame harness B. Wire ties
Figure 3-20
A. Frame harness B. Wire ties
Figure 3-19
121913 3-9 REV B
Final Connection
INDEX
NO.
PART NO. DESCRIPTION
1 053702 CE .620 X 3.0 X .15 X 2.84
2 704783 FW .625 X 1.500 X .105 ZN
3 023036 HP .148 X 2.690 ZN
2
1
BAC-VAC™ Assembly
2
3
2
2
1
Hopper assembly
A
B
A
B
1. Park the mower on a flat surface. Always place the
deck clutch switch in the disengaged position, place the steering control levers in the park brake position and shut off the ignition switch, and remove the key from the switch. Disconnect the negative battery cable.
2. Roll the BAC-VAC™ to the mower and slide the lower
hooks over the rod on the mount tube.
Figure 3-21
NOTE: It is recommended that two people attach the hop­per to the mower mounts. One person to roll the hopper into position, slide the lower hooks onto the mount spacer and pivot it into position. 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
A. Mount tube B. Hooks
3. Connect the BAC-VAC™ frame harness connector body
to the hopper’s harness connector body.
4. Raise the discharge cover on the blower housing. Slide the outlet adapter into place on the blower outlet.
REV B 3-10 121913
Figure 3-22
Figure 3-21
A. Frame harness connec-
tor body
B. Hopper harness con-
nector body
Figure 3-23
Secure the discharge cover in place with the discharge
Figure 3-23
cover latching the rod handle of the outlet adapter. Refer to
Figure 3-2 or Figure 3-3.
5. Slide one end of the flex tube onto the blower outlet
A
B
C
tube.
Figure 3-24
6. Slide the other end of the flex tube over the inlet tube. Figure 3-24
7. Attach the counter weight mount to the front of the mower.
Figure 3-25
8. Slide the weights vertically onto the mount and lock in place using the weight 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 increased to support the additional weight of the BAC-VAC™ system and when grass clippings are in the hopper.
NOTE: When the BAC-VAC™ system is removed the air pressure in the tires should be decreased to the normal operating range of 8 - 12 psi (55 - 83 KPa).
A. Flex tube B. Inlet tube
C. Blower outlet tube
Figure 3-24
121913 3-11 REV B
2
3
5
1
4
6
7
INDEX
NO.
PART 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 SAE
8 025395 CB .375-16 X 1.00 G5
Weight Assembly
8
6
7
3
Figure 3-25
REV B 3-12 121913

OPERATION

WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING

Collecting and Vacuum Pickup

Follow normal mower start-up and operating procedures as outlined in the mower’s operator’s manual. The blower will operate when the mower deck clutch switch is engaged. To stop the blower, return the deck clutch switch to the disen gaged position.
Proceed to mow in the normal manner and occasionally glance at the flex tube. When the hopper is full, the speed of debris through the tube will decrease. When the hopper is filled, move the deck clutch switch to the disengaged posi tion and drive the machine to the unloading area.
It is best that the hopper be unloaded before the discharge chute and flex tube areas become clogged. If clogging occurs, it will be necessary to clear the blower chute and flex tube areas of all material before starting to mow again.
Make certain the engine is turned off, the steering control levers are in the park brake position and the ignition key is removed from the ignition switch and be sure blades have stopped before clearing the blower chute and flex tube areas.
-
-

Unloading the BAC-VAC™

Make certain the deck clutch switch is in the dis­engaged position before unloading.
The BAC-VAC™ is designed to dump the load in a desig-
nated area on the ground while the mower is stationary.
To dump the BAC-VAC™, place the steering control levers in the park brake position to prevent accidental mower move ment or engine cutting in and out.
NOTE: The mower’s ignition switch must be in the “ON”
position to open or close the hopper door.
Never approach the BAC-VAC™ hopper while the mower’s ignition switch is in the “ON” position.
-
Never place hands or feet into the discharge area. The impeller is relatively close to the housing and will cause severe injury. Use a probe to clean debris from blower housing discharge area. The discharge cover must remain closed whenever the blower chute is removed.
Never engage the mower deck unless the BAC­VAC™ flex tube is in place on the BAC-VAC™ inlet tube and inserted onto blower chute outlet tube.
Prevent objects being thrown and the accumulation of grass clippings and other debris in the engine compartment by NEVER operating the mower deck unless:
• BAC-VAC™ is in the catching position.
• Flex tube is in place on the blower chute and on the BAC-VAC™ inlet tube.
• The hopper door is fully closed.
Hold the BAC-VAC™ operating switch in the “open” position until the hopper door comes to a stop. Keep the hopper door open until all of the clippings have been discharged from the hopper. Then close the hopper door by holding the operating switch in the “closed” position until the hopper door has closed all the way. The deck clutch switch may then be engaged to continue mowing.
Never work on the blower assembly or the mower deck when the mower engine is running.

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 key. Be sure the blades have stopped before dismounting from the mower.
2. Remove the flex tube from the BAC-VAC™ inlet tube and blower outlet tube.
3. Remove the blower outlet tube from the blower assem­bly. Figure 4-1
4. Remove the blower belt cover from the deck. Figure 4-1
Figure 4-1
-
121913 4-1 REV B
5. Release the tension from the blower drive belt and
WARNING
WARNING
A
B
C
A
B
C
A
B
C
D
remove it.
Figure 4-2
NOTE: It is not necessary to remove the double pulley on the deck spindle.
6. Remove the pin that connects the blower to the dis­charge chute bracket tabs and remove the blower housing.
Figure 4-2
7. Assemble the torsion spring, original discharge chute and pin to the bracket tabs. Make sure the torsion spring is assembled as shown so that it applies pres sure to the discharge chute and keeps it in the down position.
Figure 4-3
8. Remove the BAC-VAC™ from the rear of the machine. (See Removing the BAC-VAC™ section below.)
NOTE: It is not necessary to remove the BAC-VAC™ frame that is attached to the rear of the mower.
Never operate the mower deck with the side deflector damaged, altered, removed or in raised position, except when the entire BAC-VAC™ attach
-
ment or mulching system is being used.
-
A. Blower belt B. Double pulley
C. Pin
Figure 4-2
Always operate with complete BAC-VAC™, mulch­ing system or side discharge chute in place and in the lowest position.
A. Flex tube B. Inlet tube
C. Blower outlet tube
Figure 4-1
A. Tall pulley cover B. Discharge chute
C. Torsion spring D. Pin
Figure 4-3

Removing the BAC-VAC™

Use the following procedure when removing the BAC-VAC™
from the 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 dismounting from the mower.
2. Disconnect the BAC-VAC™ frame harness from the hopper’s wire harness.
3. Remove the flex tube from the BAC-VAC™ inlet tube. Figure 4-1
4. Unpin the BAC-VAC™ assembly from the side mount brackets and pivot it until the lower hooks clear the mount spacer.
Figure 4-4
-
REV B 4-2 121913
A
B
C
A
A
B
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 for stor­age. Secure in place with the hair pins. Tuck the BAC­VAC™ frame harness under the left side latching pin for protection.
Figure 4-5
6. Roll the BAC-VAC™ away from the mower.
A. Unpin here
C. Hook
B. BAC-VAC™
Figure 4-4
NOTE: It is recommended that two people remove the
hopper from the mower mounts. The first person to hold the hopper in place while the second person removes the clevis pins, flat washers, and hair pins from the side mount brackets and the BAC-VAC™ mount tubes. The first person will then pivot the hopper away from the side
A. Frame harness B. Latching pin
Figure 4-5
121913 4-3 REV B
REV B 4-4 121913

MAINTENANCE & STORAGE

WARNING
WARNING
WARNING
WARNING
WARNING
A
B
C
A

Blower Housing and Flex Tube Maintenance

Never work on the blower assembly or mower deck when the engine is running.
Clean flammable material from the machine. Prevent fires by keeping the engine compartment, top of the deck, exhaust area, battery, hydraulic lines, fuel line, fuel tank and operator’s station clean of accumu lated trash, grass clippings, and other debris. Always clean up spilled fuel and oil.
The blower assembly, flex tube and blower outlet tube
(
Figure 5-1) should be kept clean and free of any accumula­tion of clippings or other obstructions. Occasional clogging may also occur when working in heavy or wet grass.
-
To clean the hopper, hand wash with soap and water; rinse
with clean water.
A. Flex tube B. Blower assembly
C. Blower outlet tube
Figure 5-1

Blower Drive Belt

Never place hands or feet into the blower chute. There is an impeller located inside the housing that will cause severe injury. Use a probe to clear debris from blower chute.
Never operate the mower deck with side deflector damaged, altered, removed or in raised position, except when the entire BAC-VAC™ or mulching sys tem is being used.
Prevent objects being thrown and the accumulation of grass clippings and other debris in the engine compartment by NEVER operating the mower deck unless:
• BAC-VAC™ is in the catching position.
• Flex tube is in place on the blower chute and on the BAC-VAC™ inlet tube.
• The hopper door is fully closed.
The blower drive belt (Figure 5-2) is located under the blower belt cover. This belt is spring tensioned and should not need adjustment.
To inspect or replace the belt, remove the blower belt cover from the top of the deck and the blower housing.
When belt replacement becomes necessary, check the con­dition of the pulleys. Clean the grooves and check for exces­sive wear. A new belt should not run against the bottom of groove. If it does bottom out, the pulley needs replacing.
-
A. Blower belt
cover from the top of the deck and blower housing.
tube can be cleaned by using soapy water and washing the inside of the tube with a pressure washer. Rinse with water.
121913 5-1 REV B
To service the blower housing, remove the blower belt
To service the flex tube, remove the tube from the unit. The
Figure 5-2

BAC-VAC™ Hopper

Use a pressure washer to clean the inside and outside of the hopper.
NOTE: Do not spray the linear actuator with the pressure
A
D
D
A
B
C
washer.
It will be necessary to lubricate the three grease points
shown in
Figure 5-3 every 40 hours or after every power washing. NOTE: It will be necessary to remove the actuator cover to access the center grease zerk.
tightening the screws.
Figure 5-4 Repeat the test and adjustment until the door stops its opening motion before the actuator ratchets.
3. With the door open, press the switch on the mower so that the door closes.
The sensor switch should have a .5 second delay. Allow the door to close. The door should close and compress the door/shell joint and the actuator should ratchet and after approximately .5 seconds the ratcheting should stop. If the actuator does not ratchet then the horizontal sensor switch needs to be adjusted so that less of the plunger is exposed out of the switch’s control body. Figure 5-4 If the actuator does not stop ratcheting then the horizontal sensor switch needs to be adjusted so that more of the plunger is exposed out of the switch’s control body.
4. After the switches are correctly set, open the door and adjust the two turnbuckles by tightening them by two complete revolutions. Tighten the jam nuts on the turnbuckles.
Figure 5-5
A. Grease zerks
Figure 5-3

BAC-VAC™ Hopper Switch Adjustment

Occasionally it may be necessary to adjust the sensor switches on the hopper door. These switches, when adjusted properly, make sure that the hopper door is closing and seal ing properly.
1. Ensure that the BAC-VAC™ is fully mounted and that the hopper wire harness and the mower frame harness are connected.
2. With the hopper door closed and the ignition switch in the “ON” position, press the control switch on the mower so that the door opens.
Allow the door to open fully. If the actuator makes a ratcheting sound before the door stops moving, then the angled sensor switch needs to be adjusted so that more of the plunger is exposed out of the switch’s control body. The plunger depth is adjusted by loosening the two screws, repositioning the switch body, and then
-
A. Angled sensor switch
plunger
B. Control box
C. Horizontal sensor
switch plunger
D. Screws
Figure 5-4
REV B 5-2 121913
A. Lock nut B. Turnbuckle
A
B
A
WARNING

Blower Impeller

The blower impeller shaft bearings do not require lubrica-
tion.
Normal wear can cause the impeller and edges of the blower to become sharp. Wear gloves and use caution when servicing the blower.

Storage

When your mower is to sit idle for a period of time, scrape and power wash to remove the grass material from 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 has aerosol spray paint available.
-
Figure 5-5
121913 5-3 REV B
REV B 5-4 121913
BAC-VAC™ Warranty Policy
Excel Industries, Inc. manufacturer (“Manufac­turer”) of Big Dog® mowers makes the following war­ranty to the original purchaser only:
a. Big Dog
®
Mower Co. attachments and accessories are warranted for one (1) year (parts and labor) from date of delivery on all materials and workmanship.
If the Purchaser discovers within this warranty period a defect in materials or workmanship:
He must promptly notify an authorized Big
Dog® Mowers dealer of the defect. In no event shall such notification be received by
General Information
Who Must Perform The Warranty Service
All warranty service will be performed by dealers authorized by Manufacturer of Big Dog vice calls and/or transportation expense of the product to and from the authorized dealer, for warranty work, will be paid by the owner of the product. For warranty service contact an authorized dealer.
What Is Not Covered By This Warranty
Big Dog® Mowers, does not warranty:
Repairs made by unauthorized persons.
Damage caused by use of the Big Dog
ers for purposes other than those for which it was designed.
Damages caused by disasters such as fire,
flood, wind, and lightning.
Damages caused by neglect, abuse, abnor-
mal use, improper or unreasonable use, acci­dent, negligence or misuse.
Repairs or replacement resulting from the
use of unauthorized parts, accessories or attachments.
Damage caused by foam filled or solid filled
tires.
Repairs or replacement as the result of altera-
tions or modifications.
®
mowers. Ser-
®
mow-
an authorized Big Dog® Mowers dealer later than thirteen (13) months from date of deliv
-
ery.
Within a reasonable time after such notifica-
tion, Big Dog® Mowers will correct any defect in material or workmanship on the Big Dog
®
mower, by repairing or replacing part(s) with either new or used replacement parts.
Such repair, including parts and labor shall be
at the expense of Manufacturer of Big Dog
®
mowers.
Big Dog
®
mowers which has the serial num-
ber removed or made illegible.
Depreciation or damage caused by normal
wear, lack of reasonable and proper mainte­nance, failure to follow the product’s opera­tor’s manual operating, maintenance and adjustment instructions or other operational instructions provided by Big Dog® mowers.
Seats damaged by exposure to weather ele-
ments, due to the mower being stored out­side, normal wear, neglect, abuse, abnormal use, improper or unreasonable use, accident, negligence or misuse.
Normal maintenance parts and service
including, but not limited to, filters, fuel, lubri­cants, tune-up parts, belts, blades, blade sharpening, bearings, brake or steering adjustments.
Electric clutches that fail due to improper
engagement and disengagement practices or normal wear.
Repairs necessary due to improper fuel, con-
taminates in the fuel system, or failure to properly prepare the fuel system prior to any period of non-use over three months.
Repairs necessary due to the use of fuel that
is greater than E10.
121913 6-1 REV B
Disclaimer Of Warranty
THE FOREGOIN GWARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WAR
­RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. However, if the Big Dog
®
mower is purchased as a consumer product, any implied warranty of merchantability or fitness for a particular purpose is limited to the duration of this limited warranty. Some states do not allow limita
­tions on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Limitations Of Warranties
In no case shall Manufacturer of Big Dog® mowers, be liable for any special, incidental, or consequential damages based upon breach of warranty, breach of contract, negligence, strict liability in tort, or any other legal theory.
Such damages include, but are not limited to:
Loss of profits
Loss of savings or revenue
Loss of use of Big Dog
ciated equipment
Cost of capital
Cost of any substitute equipment, facilities,
services or downtime
The claims of third parties including custom-
ers, and injury to property
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
®
mowers or any asso-
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 exclusive agreement between the par
­ties, superseding all prior agreements, oral or written, and all other communications between the parties relating to the subject matter of this agreement. No employee of Manufacturer of Big Dog
®
mowers, or any other party is authorized to make any warranty in addition to those made in this agreement.
Allocation Of Risks
This agreement allocates the risks of product fail­ure between Manufacturer of Big Dog® mowers and the purchaser. This allocation is recognized by both parties and is reflected in the price of the goods.
Owner’s Responsibility
You must maintain your Big Dog® mowers product following the maintenance procedures described in your operator's manual. Such routine maintenance, whether performed by a dealer or by you, is at your expense.
This machine like any other powered equipment is potentially dangerous unless properly operated. Any
operator must be cautious and keep safety in mind at all times. Any operator, prior to using the Big Dog
®
mowers, should thoroughly familiarize himself with the operator's manual regarding operation and safety of the machine, as well as all safety warnings on the machine itself.
Warranty Registration
Dealers must register the unit on-line at
https://excel.warrantysmart.arinet.com
within ten (10) days following date of pur chase.
The date of purchase constitutes delivery.
-
REV B 6-2 121913

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. . . . . . . . . . . . . . . . . . . 7-20
121913 7-1 REV B
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
REV B 7-2 121913
60" Deck Adapter
INDEX NO. PART NO. QTY. DESCRIPTION
1 603324 1 BLOWER CHUTE
2 025395 4 CB .375-16 X 1.00 G5 ZNY
3 114066 1 OUTLET ADAPTER
4 552081 1 CENTER DRIVE COVER (WITH DECALS)
5 601837 1 DECK DANGERS DECAL
6 601624 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 .515 X 2.25 X .204 BLK
13 603311 1 DOUBLE DRIVE PULLEY
14 117758 1 BLOWER MOUNT
15 036244 4 CS .375-16 X 1.00 HX G5
16 729624 1 CS .437-14 X 2.50 HX G5 Z
17 117762 1 RIGID LINK
18 115773 1 CENTER DRIVE BRACKET
19 601069 1 CN .312-18 X .20 MAX THK
20 117699 1 BAFFLE
1. Existing hardware.
NOTES:
121913 7-3 REV B
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
REV B 7-4 121913
72" Deck Adapter
INDEX NO. PART NO. QTY. DESCRIPTION
1 603324 1 BLOWER CHUTE
2 025395 4 CB .375-16 X 1.00 G5 ZNY
3 114066 1 OUTLET ADAPTER
4 552082 1 CENTER DRIVE COVER (WITH DECALS)
5 601837 1 DECK DANGERS DECAL
6 601624 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 2.25 X .204 BLK
13 603712 1 DOUBLE DRIVE PULLEY
14 117758 1 BLOWER MOUNT
15 036244 4 CS .375-16 X 1.00 HX G5
16 729624 1 CS .437-14 X 2.50 HX G5 Z
17 117768 1 RIGID LINK
18 601069 1 CN .312-18 X .20 MAX THK
19 115773 1 CENTER DRIVE BRACKET
20 117702 1 BAFFLE
1. Existing hardware.
NOTES:
121913 7-5 REV B
Frame
2
1
4
6
3
3
3
2
5
REV B 7-6 121913
Frame
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 1/4-20 THREAD RIVET NUT
NOTES:
121913 7-7 REV B
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
REV B 7-8 121913
Shell
INDEX NO. PA RT N O . QTY. DESCRIPTION
1 603794 1 LINEAR ACTUATOR
2 781567 2 NT .500-13 HX G8 ZY NL
3 767962 8 FW .531 X 1.063 X .175
4 721910 1 CS .500-13 X 2.75 HX G5 Z
5 058776 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 115782 2 SIDE BAFFLE
13 016253 12 CB .312-18 X .75 FUL ZN
14 115701 4 VERTICAL SPANNER
15 115740 1 SKID PLATE
16 077859 1 CS .500-13 X 3.25 HX G5
17 808485 4 5/16-18 THREAD RIVET NUT
18 119745 1 INLET TUBE
NOTES:
121913 7-9 REV B
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
REV B 7-10 121913
Lid
INDEX NO. PA RT N O . QTY. DESCRIPTION
1 058776 30 NT .312-18 HX ZY NL
2 768523 25 FW .343 X .687 X .051/.080H
3 036236 24 CS .312-18 X 1.00 HX G5
4 712927 26 FW .344 X 1.00 X .12 HRD Z
5 115919 2 SPACER
6 601069 13 CN .312-18 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 ZNYC
13 767954 4 FW 0.379 X 0.813 X 0.063
14 760181 2 WHEEL
15 086660 2 NT .375-16 HX ZY NL
16 115723 1 LID FRAME
17 603797 1 LID
18 116116 2 ANCHOR BRACKET
19 115783 2 SIDE BAFFLE
20 119893 1 AIR DEFLECTOR
21 119993 1 CENTER DIVIDER BRACKET
NOTES:
121913 7-11 REV B
Linkage
3
2
6
1
4
2
5
8
7
2
2
3
5
SHELL ASSEMBLY
LID ASSEMBLY
REV B 7-12 121913
Linkage
INDEX NO. PA RT N O . 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 .25 ZNYC
8 005116 2 CS .375-16 X 1.375 HX G5
NOTES:
121913 7-13 REV B
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
REV B 7-14 121913
Frame Adapter
INDEX NO. PART NO. QTY. DESCRIPTION
1 705954 6 CS .500-13 X 1.25 HS G5
2 767962 18 FW .531 X 1.063 X .175
3 116714 1 MOUNT SPACER
4 008193 8 NT .500-13 HX G5 ZNYC
5 118150 1 RS MOUNT
6 017616 6 CS .500-13 X 1.75 HX G5
7 078386 2 FW .510 X 1.75 X .18 ZNYC
8 115933 1 LS MOUNT
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 767954 6 FW .379 X .813 X .063
16 781880 10 BUMPER
17 190278 1 WEIGHT MOUNT
18 603207 5 WEIGHT
19 604423 2 UB .375-16 X 2.00 X 4.50
20 025395 2 CB .375-16 X 1.00 G5 ZNY
21 603356 1 8" CLEAR FLEX TUBE
22 769299 1 SC #10 X .750 PHILLIPS T
23 604576 1 MUFFLER EXTENSION 1.5"
604577 1 MUFFLER EXTENSION 1.375" (NOT SHOWN)
NOTES:
121913 7-15 REV B
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
REV B 7-16 121913
Shell Electric
INDEX NO. PA RT N O . QTY. DESCRIPTION
1 115711 1 ACTUATOR TOP LID
2 808485 5 5/16-18 THREAD RIVET NUT
3 034280 9 CS .312-18 X .75 HX G5
4 768523 9 FW .343 X .687 X .051/.080H
5 116213 1 CONTROL BOX COVER
6 601822 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 000331 4 WIRE TIE
13 603936 1 WIRE HARNESS
14 059832 3 NT #10-24 HX NL ZN
15 017079 3 FW .250 X .56 X .04 SAE Z
16 060731 3 CS 10-24 X .50 HX FLK ZN
17 115731 1 ACTUATOR BOTTOM LID
18 N/A 1 SERIAL NO. / SPEC DECAL
19 762195 1 DELAY MODULE
20 601053 2 RELAY, SEALED W/BRACKET
1. Part of the wire harness.
NOTES:
121913 7-17 REV B
Wire Harness
10
1
2
6
1
9
9
7
7
5
4
3
6
8
7
8
REV B 7-18 121913
Wire Harness
INDEX NO. PART NO. QTY. DESCRIPTION
1. Part of the wire harness.
1 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 FW .379 X .813 X .063
8 036244 1 CS .375-16 X 1.00 HX G5
9 000331 7 WIRE TIE
10 603935 1 WIRE HARNESS
NOTES:
121913 7-19 REV B
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
REV B 7-20 121913
Blower—552623—S/N 14040001 & Higher
INDEX NO. PART NO. QTY. DESCRIPTION
1N/A1BLOWER HOUSING (NOT SOLD SEPARATELY)
2 058776 27 NT .312-18 HX ZY NL
3 768523 28 FW .343 X .687 X .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 .406 X 1.00 X .12 HRD Z
11 036244 3 CS .375-16 X 1.00 HX G5
12 322529 1 KEY .187 SQ X .750 LONG
13 114337 1 BEARING COVER
14 119874 1 BLOWER COVER
15 119741 1 GUARD
16 799130 8 CS .312-18 X .50 HXFL
NOTES:
121913 7-21 REV B
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
REV B 7-22 121913
Blower—552623—S/N 14040001 & Higher
INDEX NO. PART NO. QTY. DESCRIPTION
17 068551 2 NT .250-20 HX ZY NL
18 768515 2 FW .281 X .625 X .066
19 120615 1 COVER PLATE
20 794784 2 CB .250-20 X .75 FUL ZN
21 792002 1 KNOB 5/16-18 X 3/4"
22 036236 1 CS .312-18 X 1.00 HX G5
23 120266 1 PULLEY 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 SOC BH
30 076422 2 FW .406 X 1.00 X .06 ZNYC
31 113128 1 BLOWER INLET BAFFLE
32 086660 5 NT .375-16 HX ZY NL
33 073858 2 FW .406 X .75 X .25 ZNYC
34 704718 2 FW .406 X .688 X .060 ZNYC
35 602435 1 TORSION SPRING
36 550995 1 BLOWER LID (WITH DECALS)
37 119872 1 ABRASION GUARD
38 602674 1 CB .375-16 X 6.00 STD
NOTES:
121913 7-23 REV B
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
REV B 7-24 121913
Blower—552623—S/N 14040001 & Higher
INDEX NO. PART NO. QTY. DESCRIPTION
39 600296 3 DECK IDLER SPACER
40 791566 1 IDLER PULLEY 3.25" OD X .6
41 028118 4 FW .625 X 1.00 X .134 ZNYC
42 016642 2 CS .625-11 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 113406 1 BLOWER IDLER ARM
50 008573 1 CS .500-13 X 2.50 HX G5
51 602913 1 V-IDLER PULLEY
52 602757 1 BLOWER DANGERS DECAL
53 N/A 1 SERIAL NUMBER / SPEC DECAL
54 602758 1 EYES/EARS/FOOT DECAL
55 552623 1 BLOWER ASSEMBLY
NOTES:
121913 7-25 REV B
REV B 7-26 121913
INDEX
PAGE PAGE
BAC-VAC™ Assembly ................................................3-10
BAC-VAC™ Hopper ......................................................5-1
BAC-VAC™ Hopper Switch Adjustment ........................5-2
BAC-VAC™ Mount Assembly .......................................3-5
Blower Drive Belt .......................................................5-1
Blower Housing and Flex Tube Maintenance ..............5-1
Blower Impeller ..........................................................5-3
Collecting and Vacuum Pickup ...................................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
Parts and Service ...................................................... 1-1
Removing The BAC-VAC™ .......................................... 4-2
Safe Operation and Service Precautions .................... 2-1
Safety and Instruction Decals ................................... 2-2
Storage ..................................................................... 5-3
To The New Owner .................................................... 1-1
Unloading the BAC-VAC™ ........................................... 4-1
Using This Manual .................................................... 1-1
Warranty Registration ............................................... 1-1
Weight Assembly .................................................... 3-12
121913 i-1 REV B
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