BOB-CAT 970474 BOSS-VAC PRO Setup guide

MODEL :
970474 BOSS-VAC PRO™, 12 BUSHEL BAG, COLLECTION SYSTEM
970502 KIT-DECK, 52IN 12 BUSHEL COLLECTION SYSTEM
970503 KIT-DECK, 61IN 12 BUSHEL COLLECTION SYSTEM
970504 KIT-DECK, 72IN 12 BUSHEL COLLECTION SYSTEM
Manual 4170502
Rev. A 03/21/2014
107067_en O-03
Printed in Canada
OPERATOR MANUAL
& ILLUSTRATED PARTS LIST

2
BAG COLLECTION SYSTEM

IMPORTANT MESSAGE
Thank you for purchasing this Schiller Grounds Care, Inc. product. You have purchased a world class product,
one of the best designed and built anywhere.
This product comes with an Owner / Operator’s Manual. The useful life and good service you receive from this
product depends to a large extent on how well you read and understand this manual. Take care of this product
properly and adjust it as instructed, and it will give you many years of reliable service. This manual has been
provided to assist you in the safe operations and servicing of this attachment.
See a Schiller Grounds Care, Inc. dealer for any service or parts needed. Schiller Grounds Care, Inc, service
ensures that you continue to receive the best results possible from Schiller Grounds Care, Inc. products. You
can trust Schiller Grounds Care, Inc. replacement parts because they are manufactured with the same high
precision and quality as the original parts.
Schiller Grounds Care, Inc. designs and builds its equipment to serve many years in a safe and productive
manner. For longest life, use this product only as directed in the manual, keep it in good repair and follow safety
warnings and instructions. You’ll always be glad you did.
NOTE: All photographs and illustrations in the manual may not necessarily depict the actual models or attachment,
but are intended for reference only and are based on the latest product information available at the time of
publication.
Familiarize yourself fully with the safety recommendations and operating procedures before putting the machine to
use. Carefully read, understand and follow these recommendations and insist that they be followed by those who will
use this attachment.
This manual should be kept for future reference.
Please check if you have received all the parts for your kit with the list of the bag and the
list of the box.
Schiller Grounds Care, Inc.
One Bob Cat Lane
Johnson Creek, WI 53038-0469
TABLE OF CONTENTS PAGE
DESCRIPTION / SPECIFICATIONS ...................................................................................................................... 2
SAFETY .................................................................................................................................................................... 3
SAFETY DECALS .................................................................................................................................................... 6
ASSEMBLY INSTRUCTIONS ................................................................................................................................. 7
VEHICLE PREPARATION ...................................................................................................................................... 11
INSTALLATION ........................................................................................................................................................ 14
ADJUSTMENTS & REMOVAL ............................................................................................................................... 20
OPERATION ............................................................................................................................................................. 21
SERVICE .................................................................................................................................................................. 22
TROUBLESHOOTING ............................................................................................................................................ 23
DOUBLE PULLEY TABLE....................................................................................................................................... 25
PARTS SECTION .................................................................................................................................................... 26
TORQUE SPECIFICATION TABLE ....................................................................................................................... 40
OPTIONS .................................................................................................................................................................. 41
BAG COLLECTION SYSTEM

2
DESCRIPTION / SPECIFICATIONS
DESCRIPTION
Rear mount 3 baggers 12 bushel collection system.
SPECIFICATIONS
Capacity: ………………………………………………….…. 12 Bushel (BU)
Dump from Seat: ……………………..……………………. No
Dump operation: ……………………………..…………….. N/a
Number of bags: ……………………………………..…….. 3
Fan Diameter: ………………………………………………. 15.31 in
Number of fan blades: ……….……………………………. 4
Thickness of blades: ………………………………………. 3/16 in
Impellar Axis: ……………………………………………..... Horizontal
Impellar Housing Thickness: …………………………...… 11 ga
Impellar Bearing size: ……………………………………... 1 in
Blower Tube-Dia.: ………………………………….………. 6 in
Adds Length: ………………………………………………... 23.75 in back
Adds Width on deck: ………………………..……………… 8.75 in
Rear collector width (excluding blower): ……………….… 60.25 in
Rear mount collection system weight : ……………….….. 150 lbs
Blower mounted on deck weight : ……………………..…. 65 lbs
Three front weights: ……………..………………………… 150 lbs
Collection system weight including packaging: … ….…… ~480 lbs
Kit-Deck weight including packaging: … ….…………….… ~180 lbs
NOTE: Specifications are subject to change without notice.
Record your attachment’s serial number and purchase date in the section reserved below. Your dealer requires this
information to give you prompt, efficient service when ordering replacement parts. Use only genuine parts when
replacements are required.
If warranty repairs are required please present this registration booklet and original sales invoice to your selling dealer
for warranty service.
SERIAL NUMBER : ___________________________
(IF APPLICABLE)
MODEL NUMBER: ___________________________
PURCHASE DATE : ___________________________
BAG COLLECTION SYSTEM

3
SAFETY
NOTICE !!!!
Unauthorized modifications may present extreme
safety hazards to operators and bystanders and
could also result in product damage.
Schiller Grounds Care, Inc. strongly warns against,
rejects and disclaims any modifications, add-on
accessories or product alterations that are not
designed, developed, tested and approved by
Schiller Grounds Care, Inc Engineering
Department. Any Schiller Grounds Care, Inc
product that is altered, modified or changed in any
manner not specifically authorized after original
manufacture-including the addition of "after-
market" accessories by Schiller Grounds Care,
Inc.-will result in the Schiller Grounds Care, Inc.
Warranty being voided.
Any and all liability for personal injury and /or
property damage caused by any unauthorized
modifications, add-on accessories or products not
approved by Schiller Grounds Care, Inc. will be
considered the responsibility of the individual(s) or
company designing and/or making such changes.
Schiller Grounds Care, Inc. will vigorously pursue
full indemnification and costs from any party
responsible for such unauthorized post-
manufacture modifications and/or accessories
should personal injury and/or property damage
result.
This symbol means:
ATTENTION !
BECOME ALERT!
Your safety and the safety of others is involved.
Signal word definitions:
The signal words below are used to identify levels of
hazard seriousness. These words appear in this
manual and on the safety labels attached to Schiller
Grounds Care, Inc. machines. For your safety and
the safety of others, read and follow the information
given with these signal words and/or the symbols
shown above. Regardless of the hazard be
extremely careful.
DANGER Indicates an imminently hazardous
situation which, if not avoided, WILL result in death
or serious injury.
WARNING Indicates a potentially hazardous
situation which, if not avoided, COULD result in
death or serious injury.
CAUTION Indicates a potentially hazardous
situation which, if not avoided, MAY result in minor
or moderate injury. It may also be used to alert
against unsafe practices or property damage.
CAUTION Used without the safety alert symbol
indicates a potentially hazardous situation which, if
not avoided, MAY result in property damage.
BAG COLLECTION SYSTEM

4
SAFETY
Careful operation is your best insurance against an accident. Read this section carefully before operating the vehicle
and accessory. This accessory is capable of amputating hands and feet and throwing objects. Failure to observe the
following safety instructions could result in serious injury. All operators, no matter how experienced they may be,
should read this and other manuals related to the vehicle and accessory before operating. It is the owner's legal
obligation to instruct all operators in safe operation of the accessory.
GLOSSARY:
In this manual, right and left sides are determined by
sitting on the seat of the vehicle facing forward.
In this manual, "accessories" means attachments that
you install on the vehicle.
TRAINING:
1. Read this owner's manual carefully. Be thoroughly
familiar with the controls and proper use of the
vehicle and accessory. Know how to stop the unit
and disengage the controls quickly.
2. Never allow children to operate the vehicle nor the
accessory. Never allow adults to operate the vehicle
nor the accessory without proper instructions.
3. No one should operate the vehicle nor the
accessory while intoxicated or while taking
medication that impairs the senses or reactions.
4. Keep the area of operation clear of all people,
particularly small children and pets.
PREPARATION:
1. Thoroughly inspect the area where the accessory
is to be used and remove door mats, all foreign
objects and the like.
2Disengage all clutches and shift into neutral before
starting engine.
3. Do not operate the accessory without wearing
adequate garments. Avoid loose fitting clothing that
can get caught in moving parts. Wear footwear that
will improve footing on slippery surfaces.
4. Never attempt to make any adjustments while the
engine (motor) is running (except when specifically
recommended by manufacturer).
5. Let the vehicle and accessory adjust to outdoor
temperatures before using.
6. Never use an accessory without proper guards,
plates, or other safety protective devices in place
7. Always make sure to wear the appropriate safety
equipment required (glasses, muffs, mask…) for
each type of product. See operation section.
8. Always make sure of having safe traction on the
vehicle by using the recommended accessories
BAG COLLECTION SYSTEM

5
MAINTENANCE AND STORAGE
1. When cleaning, repairing or inspecting the vehicle
and accessory, make certain that all moving parts
have stopped. Disconnect wire from the spark
plug(s) and keep wire away to prevent accidental
starting.
2. Check all the bolts and components at frequent
intervals to make sure that they are properly
tightened.
3. Always refer to the owner’s manual when you
store the accessory and vehicle for a prolonged
or an unspecified length of time.
4. Maintain or replace safety and instruction labels,
as necessary.
OPERATION:
1. Do not put hands or feet near, under or inside
rotating parts.
2. Exercise extreme caution when operating on or
crossing gravel drives, walks or roads. Stay alert for
hidden hazards or traffic. Do not carry passengers.
3. After striking a foreign object, stop the engine
(motor), disconnect the wire from the spark plug(s)
and keep wire away to prevent accidental starting.
Thoroughly inspect the accessory for any damage
and repair damage before restarting and using the
accessory.
4. If the unit should start to vibrate abnormally, stop
the engine (motor) and check immediately for the
cause. Vibration is generally a warning of trouble.
5. Take all possible precautions when leaving the
vehicle unattended. Disengage the power take-
off, lower the attachment, place the transmission
into neutral, set the parking brake, stop the
engine and remove the contact key.
6. Never use the accessories across the face of
slopes, go from top to bottom. Exercise extreme
caution when using equipment on slopes. Do not
attempt to clear a steep slope.
7.Never tolerate bystanders in the working zone.
Never use an accessory in the direction of
bystanders, it might throw gravel or debris that
can hurt people or damage property.
8.Never operate the accessory at high transport
speeds on slippery surfaces. Use care when
backing up.
9.Do not carry passengers.
10.Disengage power to the accessory when it is
transported or not in use.
11. Never operate the accessory without good
visibility or light.
SAFETY
BAG COLLECTION SYSTEM

6
SAFETY
DECALS
REPLACE IF DECALS ARE DAMAGED
SEE PARTS BREAKDOWN FOR DECAL LOCATION
To avoid serious injury from Rotating Blades
x Keep hands and feet away
x Stop engine and let blades stop before
removing grass collector or unclogging.
To avoid injury from thrown objects
x Keep area clear of people and pets.
x Remove objects blade may strike and throw.
x Stop blades to cross gravel areas.
x Do not operate without chute, mulcher or entire
grass collector in place.
To avoid injury from rotating parts
x Do not operate with cover removed.
DECAL #2000577
DECAL #2000735
DECAL #4165975
Before installing or using:
x Locate, read and make sure to understand all of
the owner’s manual.
To avoid serious injury from fan blades
Fan blades can cut / crush
x Keep hands and feet away.
x Stop engine and remove spark plug wire before
servicing.
x Do not operate without guards in place.
To avoid injury from thrown objects
x Keep bystanders away.
x Do not blow toward people or pets.
x Do not blow toward items that may be damaged
by flying debris.
DECAL #4164269
DECAL #4137371
To avoid injury from machine movement
Machine can crush.
x Movement can occur unexpectedly.
x Stay clear while engine is running.
x Stop engine to clean or service.
To avoid injury from thrown objects.
x Do not raise cover while unit is running.
DECAL #4170258
BAG COLLECTION SYSTEM

7
Tools Required:
Wrench : 7/16, 1/2, 9/16, 3/4“
Ratchet
Socket : 7/16, 1/2, 9/16, 3/4“
Drill bits : 13/64, 9/32, 13/32”
Drill
Small Cross head (Phillips Drive) screwdriver
Small Screw driver with Bit “T25 Torx drive”
Refer to corresponding parts breakdown section
for parts identification
Fully assembled view
ASSEMBLY INSTRUCTIONS
BAG COLLECTION SYSTEM

8
Chute :
Remove chute (item 69) from bag in shipping crate .
Using the dimpled marks as a guide:
x Drill four holes 9/32” (item a)
x Drill two holes 13/64” (item b)
Install keeper plate (item 60) on chute with one Tapping
screw “T25 Torx drive” (item 93).
On chute, choose hole corresponding to your deck size.
*This chosen hole can be changed depending on the
vehicle and discharge tube adjustment.
Install sleeve (item 71) on this chosen hole (on chute)
with one machine screw T.H. 1/4 x 3/4 (item 93), one
flat washer 5/16” (item 88) and one nylon insert lock nut
1/4” thin (item 86).
Deck size Recommended hole
52 in C
61 in C
72 in C
STEP 1:
GRASS COLLECTOR PREPARATION:
ASSEMBLY INSTRUCTIONS
BAG COLLECTION SYSTEM
REF. ENGLISH DESCRIPTION QTY.
69 Chute 1
82 Carriage bolt 5/16" n.c. x 3/4 " GR5 4
87 Nylon insert lock nut 5/16" n.c. (thin) 4
89 Flat washer 3/8" hole 4
90 Flat washer 7/16" hole 4
Take the blower from the shipping crate.
Chute Installation:
Install the chute (item 69) on the blower as shown.
Tighten just enough so that the chute rotates freely.

9
ASSEMBLY INSTRUCTIONS
For 72” deck:
Use deck kit #970504.
Install blower hitch to blower as shown.
For 52” and 61” decks :
Use deck kit #970502 and #970503.
Choose one set of holes (A or B) corresponding to
your deck size.
Install link tube to blower using corresponding holes.
Install blower hitch to blower, as shown.
Deck size Set of holes
52 in A
61 in B
BLOWER ASSEMBLY:
Take deck kit corresponding to mower deck size.
AB
Spring installation:
For 52” and 61” deck:
Use deck kits #970502 and #970503.
Insert spring longer end (item A) on tensioner’s hole
(item B). Bolt other end in the hole on the blower hitch
as shown.
BAG COLLECTION SYSTEM
REF. ENGLISH DESCRIPTION QTY.
1Blower hitch 1
2Link tube 1
14 Hex. bolt 5/16" n.c. x 3/4" GR5 4
17 Nylon Insert lock Nut 5/16" n.c. 1
20 Lock washer 5/16" 3
REF. ENGLISH DESCRIPTION QTY.
1Blower hitch 1
12 Hex. bolt 5/16" n.c. x 3/4" GR5 3
17 Lock washer 5/16" 3
REF. ENGLISH DESCRIPTION QTY.
11 Spring 1
13 Hex. bolt 1/4" n.c. x 1" GR5 1
16 Nylon Insert lock Nut 1/4" n.c. 1
19 Flat washer 5/16" hole 2

10
ASSEMBLY INSTRUCTIONS
For 72” deck:
Use deck kit #970504.
Insert spring longer end (item A) on tensioner’s hole
(item B). Bolt other end in the hole on the blower hitch
as shown.
ASSEMBLY INSTRUCTIONS
BAG COLLECTION SYSTEM
REF. ENGLISH DESCRIPTION QTY.
9Spring 1
11 Hex. bolt 1/4" n.c. x 1" GR5 1
14 Nylon Insert lock Nut 1/4" n.c. 1
17 Flat washer 5/16" hole 2

11
Removing parts and bracket installation:
For 52” deck
From mower deck, remove chute (item a), its
hardware (items b & c) and belt guard (item d).
By using same knob (item e), install bracket (item 6)
from deck kit #970502 on mower deck.
For 61” deck
From mower deck, remove chute (item a), its
hardware (items b & c) and belt guard (item d).
By using same knob (item e), install bracket (item 6)
from deck kit #970503 on mower deck.
STEP 2:
VEHICLE PREPARATION
For 72” deck:
From mower deck, remove chute (item a), its
hardware (items b & c) and belt guard (item d).
VEHICLE PREPARATION
BAG COLLECTION SYSTEM

12
Baffle and pulley installation:
*Refer to double pulley table to select the correct double
pulley and spacer (supplied with deck kit).
For 52” deck, use deck kit #970502.
From mower deck, remove current discharge baffle (item a).
By using same hardware (items b & c), install discharge baffle
supplied (item 4) on mower deck.
From mower deck, release tension on spindle drive belt and
remove current pulley (item d).
Remove existing stock washer (item w) from spindle drive.
Install correct spacer (item 24).
By using same hardware (items e, f & g), install double pulley
(item 22) on mower deck.
Re-install belt from mower deck on bottom pulley.
For 61” deck, use deck kit #970503.
From mower deck, remove current discharge baffle (item a).
Keep hardware.
Select set of holes matching with current discharge baffle
removed.
By using same hardware (items b & c), install discharge
baffle supplied (item 4) on mower deck matching holes.
From mower deck, release tension on spindle drive belt and
remove current pulley (item d).
Remove existing stock washer (item w) from spindle drive.
Install correct spacer (item 24).
By using same hardware (items e, f & g), install double pulley
(item 22) on mower deck.
Re-install belt from mower deck on bottom pulley.
For 72” deck, use deck kit #970504.
Using drilling template supplied, drill two holes (13/32”)
indicated on mower deck.
Install discharge baffle (item 3) on mower deck with two hex.
bolts 3/8" n.c. x 1" (item 13) and two nylon insert flange lock
nuts 3/8" n.c. (item 16)
From mower deck, release tension on spindle drive belt and
remove current pulley (item a).
Remove existing stock washer (item w) from spindle drive.
Install correct spacers (item 22 & 23).
By using same hardware (items b, c & d), install double pulley
(item 20) on mower deck.
Re-install belt from mower deck on bottom pulley.
VEHICLE PREPARATION
BAG COLLECTION SYSTEM

13
Counterweight installation:
Remove bolts (item A) and nuts from vehicle. They will
be replaced by new ones.
Install counterweight brackets as indicated.
Install three counterweights (item B) on its bracket.
Note : counterweights are supplied with collection
system kit deck.
Secure with pivot pin and hair pins.
Mounting pins installation:
Install mounting pins on left and right side of vehicle’s
rear bumper as indicated .
Note: For vehicles with 72” mower deck, remove rear
weight plates (item C) from bumper.
Remove two bolts (item A) and nuts from vehicle.
They will be replaced by new ones.
Do not remove two lower bolts (item B)
Install shim and mounting hitch from inside vehicle’s
rear bumper as indicated.
Secure pin on mounting hitch with lock pin.
VEHICLE PREPARATION
BAG COLLECTION SYSTEM
REF. ENGLISH DESCRIPTION QTY.
2Mounting hitch 1
10 Pin 1
11 Mounting pin 2
14 Shim 1
26 Lock pin 1
33 Hex. bolt 3/8" n.c. x 1 1/2" GR5 4
34 Hex. bolt 3/8" n.c. x 1 3/4" GR5 2
39 Nylon Insert lock Nut 3/8" n.c. 6
46 Flat washer 7/16" hole 2
REF. ENGLISH DESCRIPTION QTY.
100 Counterweight bracket 1
101 Right bracket 1
102 Left bracket 1
103 Pivot pin 1
104 Hair pin 4mm 4
105 Hex. bolt 3/8" n.c. x 1" GR5 8
106 Hex. bolt 3/8" n.c. x 1 1/4" GR5 4
107 Nylon Insert lock Nut 3/8" n.c. 12

14
THE BLOWER:
For 52” and 61” decks:
Use deck kits #970502 and #970503.
Install blower on deck with mounting pin (item 3).
Secure with hair pin (item 8).
Choose between A or B installation
A) Bolts (items 15)
Longer to install and remove but hold tighter.
Secure blower on deck with two bolts (items 15) and
nylon lock nuts (items 18).
B) Pins (items 7)
Faster to install and remove but hold less tight.
Secure blower on deck with two pins (items 7) and
hair pins (items 9).
STEP 3:
COLLECTION SYSTEM INSTALLATION:
INSTALLATION
BAG COLLECTION SYSTEM

15
For 72” deck, use deck kit #970504 :
Install blower on deck with mounting pin (item 2).
Secure with hair pin (item 7).
Choose between A or B installation
A) Bolts (items 13)
Longer to install and remove but hold tighter.
Secure blower on deck with two bolts (items 13) and
nylon lock nuts (items 15).
B) Pins (items 6)
Faster to install and remove but hold less tight.
Secure blower on deck with two pins (items 6) and
hair pins (items 8).
Belt installation :
For 52”, 61” and 72” deck:
Remove belt cover (item 59) from blower. Keep
hardware (items 76 & 91).
INSTALLATION
BAG COLLECTION SYSTEM

16
Loose bolt and nut holding belt guide (item 62)
Install belt on all blower pulleys as shown.
Position belt guide approximately the 8 o’clock
position and 2 11/16” as shown to make sure it
doesn’t interference with belt or pulley. Tighten bolt
and nut loosen before.
By pulling on tensioner (item 58), install belt on top
pulley (item A) (from double pulley previously
installed).
Belt guard installation:
For 52” and 61” decks :
Use deck kits #970502 and #970503.
As shown, install belt guard (item 5) on deck and
blower using two knobs (item 10).
For 72” deck:
Use deck kit #970504.
As shown, install belt guard (item 4) on deck and
blower using one knob (item 10) from 72” deck kit and
one knob previously removed from deck (item a) .
INSTALLATION
BAG COLLECTION SYSTEM

17
COLLECTION SYSTEM ASSEMBLY:
Before to remove collection system from crate, remove
two carriage bolts (item A) and nylon lock nuts (item B)
from two latches.
Release latches.
Tip : install carriage bolt on hole (item C) to keep latches
opened during pallet removal only.
COLLECTION SYSTEM IS HEAVY!
To avoid risk of strain injury, NEVER lift the
collection system by hand alone when
handling the components or assembly. Use
proper lifting device or seek assistance.
NEVER be underneath the collection system
when it is off the ground. Serious injury
including possibility of death could occur if
collection system were to drop suddenly.
Always wear protective shoes and
appropriate gloves when manipulating or
using this equipment.
Take collection system from crate and install it on bottom
pin already installed on vehicle.
INSTALLATION
BAG COLLECTION SYSTEM
Rotate collector toward vehicle to clip it on top latch
(item A).
Use latches with extra care! When it is
released or not properly installed, the
collector will dangerously fall down. Use
proper lifting device or seek assistance.
IMPORTANT:
Secure collector’s latch with two carriage bolts 5/16” n.c.
x 3/4” (item 37) and two knobs (item 22). (Install one on
each side).

18
ASSEMBLY INSTRUCTIONS
ASSEMBLY INSTRUCTIONS
Discharge tube:
Remove discharge tube (item 7) from shipping crate .
Using the dimpled marks as a guide:
x Drill three holes 9/32”.
Adjustment tube :
Install latch and handle on adjustment tube .
Assemble both tubes together:
Install adjustment tube (item 6) on discharge tube (item
7) with two machine screws T.H. 1/4” x 3/4” (item 48)
and two nylon insert lock nuts 1/4” n.c. (thin) (item 40).
Adjustment tube :
Remove adjustment tube (item 6) from shipping crate .
Choose one set of holes (from A to G) corresponding to
your deck size.
*This chosen set of holes can be changed depending
on the vehicle and discharge tube adjustment.
Using the dimpled marks as a guide:
x Drill two holes chosen 9/32”.
x Drill two holes 9/32” for handle (item a).
Two holes 13/64” (item b) are already drilled for latch.
Deck size Recommended hole
52 in A
61 in B
72 in D
BAG COLLECTION SYSTEM
REF. ENGLISH DESCRIPTION QTY.
28 Rubber hitch 1
47 Machine screw T.H. 1/4" n.c. x 1/2" 2
49 Tapping screw M5 x 12mm "T25 Torx drive" 2
30 Handle 1