Giant-Vac 2000 series User manual

THE GIANT-VAC
‘PTO BLOWER’
MODELS 2000*/3200**/4000***
ASSEMBLY INSTRUCTIONS AND OPERATOR’S MANUAL
Congratulations!
You have just purchased one of the finest pieces of outdoor power equipment on the
market today. If properly cared for, your Giant-Vac PTO Blower will provide years of
dependable service. Please read and follow this instruction manual carefully in order to
get the most out of your new equipment.
First, inspect your machine upon delivery. Each Giant-Vac product leaves our factory in
excellent condition; occasionally, however, some damage may occur during shipment. If
any such damage is found upon initial inspection, immediately notify the transport carrier
who delivered your machine, as they are solely responsible for the damage as well as
any subsequent adjustments.
Your Giant-Vac PTO Blower requires very little assembly. Simply follow the instructions
contained within this manual to begin enjoying the benefits of your new unit.
CALIFORNIA PROPOSITION 65 WARNING
Gasoline and Diesel engine exhaust and some of its constituents are
known to the State of California to cause cancer, birth defects and other
reproductive harm.
As an owner of off-road gasoline or diesel engine equipment and/or as an
employer, you also may have an obligation under the California
Occupational Safety and Health Act or under Proposition 65 to warn
persons exposed to gas and diesel engine exhaust and/or other
Proposition 65 chemicals in and around your workplace. See California
Health and Safety Code section 25249.5, Title 22 of the California Code of
Regulations at Section 1200 er seq., and Title 8 of the California Code of
Regulations Section 5194.
* Model 2000 P.T.O. Blower is designed to be used in conjunction with a P.T.O. 3-point hitch tractor equipped with an
18-25HP P.T.O. drive that can achieve 540 R.P.M.
** Model 3200 P.T.O. Blower is designed to be used in conjunction with a P.T.O. 3-point hitch tractor equipped with a 25-
38HP P.T.O. drive that can achieve 540 R.P.M.
***Model 4000 P.T.O. Blower is designed to be used in conjunction with a P.T.O. 3-point hitch tractor equipped with a
40+HP P.T.O. drive that can achieve 540 R.P.M.
REV. B – 8/00

SAFETY RULES REGARDING YOUR
GIANT-VAC PTO BLOWER
IMPORTANT!
READ THE FOLLOWING SAFETY RULES CAREFULLY BEFORE
OPERATING UNIT:
•Regard your Giant-Vac PTO Blower as a piece of power equipment and
teach this regard to all who will operate this unit. Never allow children or
young teenagers to operate the unit.
•Be sure to assemble the unit completely. If any parts are discovered
missing during assembly, contact your dealer immediately; do not
attempt to operate unit with missing parts.
•Always wear appropriate safety equipment when operating this unit.
Proper eye, ear, and breathing protection is a must.
•Be sure you know how to stop the unit at a MOMENT’S NOTICE. Refer
to the operation section of this manual, as well as the owner’s manual
supplied with your tractor.
•Do not operate with any guards or component parts removed from unit.
•Unless there is very good artificial light, use only during daylight.
•While in operation, keep all parts of body away from intake and exhaust
sections. Never insert any body part or other foreign object in any
opening while the machine is running.
•When operating unit, keep people and pets a safe distance away.
Instruct children to keep away from the area of operation at all times.
•Keep away from PTO shaft while unit is in operation. Contact with a
rotating PTO shaft can easily cause fatal injury.
FAILURE TO FOLLOW THESE RULES CAN RESULT IN CHRONIC
HEALTH PROBLEMS, SERIOUS INJURY, OR EVEN DEATH.
1

UNIT ASSEMBLY
MODEL 2000
Your Giant-Vac Model 2000 PTO Blower comes fully assembled * and ready for
installation onto your tractor. (Follow the manufacturer’s instructions for proper
connection to the tractor.)
* The only assembly step required is the installation of the inner deflector door control
rod:
•Remove 1/2” lock nut from threaded stud end of control rod.
•Slide rod end through hole in control rod holder (the long angle piece with the large
hole on top, extending upward from the blower frame assembly).
•Insert threaded stud end of rod down through hole in inner deflector door control arm
and replace lock nut, tightening just enough to allow free, but not sloppy, movement
of rod.
MODELS 3200-4000
PRE-ASSEMBLY:
•Identify the following items inside the components box:
2 – Caster wheel assemblies
2 – Lower hitch point assemblies
2 – Support legs
1 – Top hitch point
1 – Hardware package
INSTALLING THE CASTER ASSEMBLIES:
•Remove the ½” x 1-1/4” bolt (Parts list ref. #24) and washers (#21-23) from the top of
each of the two caster assemblies. Also remove red caster spacers, but leave thrust
bearing (#18) in place.
•Slide top section of each caster assembly up through caster arm sleeves, replace
spacers, then secure with same hardware removed in previous step.
•Carefully tilt unit onto side so that caster wheels contact ground, then remove metal
skid. Note: Assistance is recommended, as weight of unit can cause serious
injury.
2

UNIT ASSEMBLY (cont.)
INSTALLING THE HITCH POINTS AND SUPPORT LEGS:
•Remove hardware holding each lower hitch point assembly together, and separate
pieces, making careful note of assembly configuration, as it will be
reassembled onto the shaft frame in the same manner.
•Slide lower hitch points (#51) onto side panels of shaft frame (#39) so that center
gap within hitch point receives edge of side panel into it. Note: Hitch pin (#61)
should be facing out. Align holes in hitch point with corresponding holes in bottom
outer corner of side panel, then insert four 1/2” x 3-1/2” bolts (#55, previously
removed from assembly) through mounting holes in each hitch point.
•Replace jack stand spacers (making sure to use two sets of - two ¼” spacers (#53)
and one 1/8” spacer (#52) - for each hitch point) and side support plate onto each
assembly, securing with lockwashers (#56) and nuts (#57). Tighten all fasteners
securely.
•Insert jack stand (#58) up through receiving hole of each lower hitch point assembly,
created by spacers and side support plate, securing with jack stand pin (#59) and
bridge pin (#60).
•Fasten top hitch point bracket (#47) to top of shaft frame using four 1/2” x 1-1/4” bolts
(#48), lockwashers (#49) and nuts (#50). Note: To aid in top hitch point
installation, shaft frame top cover plate (#45) removal is recommended *
*Helpful hint: Before replacing top cover plate, check shaft bearings for grease.
INSTALLING THE DISCHARGE DIRECTION CONTROL ROD:
•Fasten control rod support bracket (#40) to upper right side of shaft frame with two
1/2” x 1-1/4” bolts (#41), lockwashers (#42) and nuts (#43).
•Remove locknut (#38) from threaded stud end of control rod (#36). Slide rod through
hole in control rod support bracket. Insert stud through hole in discharge direction
control arm (#35) and secure with locknut, tightening just enough to give control arm
free (but not sloppy) movement.
Assembly of your Giant-Vac PTO Blower is complete. You are
now ready to mount your unit onto the 3-point hitch of your
tractor. Refer to the manufacturer’s instructions of your tractor
for information on proper connecting procedures.
2

UNIT OPERATION
GENERAL RULES TO OBSERVE BEFORE
AND DURING OPERATION:
•Be sure that you have connected the unit to the tractor correctly and securely,
carefully following manufacturer’s instructions.
•Follow the tractor manufacturer’s recommendations for safe operation.
•Clear the entire work area of all debris that could catch on or be thrown by the PTO
Blower. High velocity discharge can easily turn rocks and branches into dangerous
flying projectiles.
•Do not engage unit until you are ready to begin debris removal, and promptly
disengage unit as soon as operation is complete.
•Use proper discretion in selecting your cleaning pattern, especially on uneven
terrain. Avoid steep hills, especially if turf is wet. Do not travel straight down slopes
exceeding 14 degrees. If tires begin to slip when climbing a slope, the grade is too
steep for safe operation. Angle the tractor to a less steep slope until tires stop
slipping and traction is regained.
•Be keenly aware of the unit’s presence on the rear of the tractor, especially when
backing up or negotiating tight spaces and corners. Failure to do this can result in
serious damage to unit, tractor, and/or property.
•Be certain the P.T.O. lever is disengaged before turning off the tractor’s engine.
ENGAGING THE UNIT:
•With tractor engine running, set throttle to slow position, engage P.T.O. drive lever,
then slowly increase throttle to a maximum of 540 R.P.M. Caution: Never run the
tractor’s P.T.O. drive over 540 R.P.M. All Giant-Vac P.T.O. Blowers are
designed for a maximum input of 540 R.P.M.
CHANGING DIRECTION OF DISCHARGE:
•Upon engaging the unit, all models discharge air initially from the left side of the
blower (driver’s perspective). However, right hand discharge can be achieved by
pulling the discharge direction control rod, located to the left rear of the operator and
easily accessible while seated on the tractor. This rod operates an inner deflector
door, which diverts air flow out to the right side. * This door is held in
3

UNIT OPERATION (cont.)
place by the pressure of the air flow, which permits hands-free operation while
in right hand mode; when the power unit’s R.P.M.’s have been decreased
sufficiently, or the PTO is disengaged, air flow will automatically revert back to
left hand discharge. Each discharge opening has an adjustable deflector to
assist in directing the ground air flow for varying conditions.
*Please note that the Giant-Vac PTO blower is designed to be equally efficient in either left or
right hand discharge mode.
UNIT MAINTENANCE
•Before performing any maintenance adjustments or repairs, stop tractor engine and
remove P.T.O. Drive Shaft.
•Check Drive Belt tension* after one hour, then after 10 hours of initial operation. Belt
tension is initially set at the factory; however, they will wear in and adjust. To check
tension: remove shaft frame top cover plate, and place a belt-tensioning gauge in
the center of the belt span between pulleys. Note: Check one belt at a time.
Gauge should read 15 pounds pressure with 1/4” deflection.
*Also check pulley alignment, as this will affect belt tension.
•Promptly replace worn, frayed or stretched belts. Important: Replace belts as a set,
as each set is machine matched to provide minimum tolerance between each belt,
resulting in longer belt life.
•Keep unit free from accumulations of grass, leaves or excessive grease. An
accumulation of these combustible materials may result in a fire.
•Grease P.T.O. drive shaft, caster wheels and assemblies, and input and impeller
shaft bearings every 50 hours of use.
•Keep tires inflated to manufacturer’s rated p.s.i. (located on sidewall of tire).
•If possible, keep unit in closed, dry storage when not in use.
4
3

GIANT-VAC WARRANTY
GIANT-VAC MFG. INCORPORATED, here-in-after called Giant-Vac, warrants each
new Giant-Vac to the original retail purchaser of the new Giant-Vac equipment to be free
from manufacturing defects in normal service for a period of 1 year, unless it is used for
rental purposes, which limits the warranty to 30 days. This warranty does not apply to
engines, tires or other parts that are purchased and warranted by their manufacturer.
Items such as bags, grass catchers, hoses and blades are not warranted, as these are
considered expendable items. This warranty does not include equipment failures due to
normal wear.
Any obligation under this warranty is expressly limited to the replacement or repair, at an
authorized servicing Giant-Vac dealer, or at a point designated by us, of such parts as
appear to us to have been defective. All defective parts have to be returned freight
prepaid before credit will be issued.
We shall not be liable for transportation charges in connection with the replacement or
repair of defective parts.
This warranty does not apply to a Giant-Vac upon which repairs or alterations have been
made by others except with our prior written approval.
We shall not be liable for consequential damages or contingent liabilities for the fitness
of any Giant-Vac for any particular purpose.
We make no other express, implied or statutory warranty, nor is anyone authorized to
make any in our behalf.
GIANT-VAC MFG. INCORPORATED
P.O. BOX 195
SOUTH WINDHAM, CT. 06266
PHONE: [phone] •FAX: [phone]

PARTS LIST # 5772 – REV. B GIANT-VAC MODEL 2000 PTO BLOWER
Ref Part
No. No. Description Qty
SHEET 1
1 10167 Blower housing & shaft frame 1
2-4 ----- -----------------------N/A on Model 2000------------------------ --
5 20191 Intake baffle 1
6 31400 5/16” x 3/4” hex bolt 5
7 31003 5/16” lockwasher 5
8 24615 Deflector 2
9 31114 3/8” x 1” hex bolt 4
9a 31034 3/8” flatwasher (not shown) 4
10 31388 3/8” lock nut 4
11 33189 Caster horn 2
12 33197 Caster wheel - 410-350x4 2
13 33116 5/8-11 x 5 hex bolt 2
14 ----- -----------------------N/A on Model 2000------------------------ --
15 33122 Wheel bearing 2
16 31571 5/8-11 hex nut 2
17-18 ----- -----------------------N/A on Model 2000------------------------ --
19 31306 Caster horn flange bushing (1” ID) 4
19a 33196 Caster arm (not shown) 2
19b 31312 5/16 x 1 hex bolt (not shown) 8
19c 31003 5/16 lockwasher (not shown) 8
19d 31027 5/16 flatwasher (not shown) 8
20 31442 Caster spacer - 1/4” 4
20 31441 Caster spacer - 1/2” 4
21-24 ----- -----------------------N/A on Model 2000------------------------ --
24a 31305 ¼” x 2” snapper pin (replaces 21-24 on 2000) 2
25 31437 Caster horn grease fitting 2
26 ----- -----------------------N/A on Model 2000------------------------ --
27 23218 Inner deflector door rod 1
28 20215 Inner deflector door 1
29 31400 5/16” x ¾” hex bolt 2
30 31003 5/16” lockwasher 4
31 27308 Spring arm holder 1
32 31422 Spring 1
33 31388 3/8” lock nut 1
34 31388 3/8” flatwasher 2
35 23219 Deflector rod upper control arm 1
36 23220 Control rod 1
37 31103 Control rod knob - 3/8” 1
38 31560 3/8” lock nut 1
SHEET 2
39-44 ----- -----------------------N/A on Model 2000------------------------ --
45 37128 Shaft frame top cover plate 1

PARTS LIST # 5772 – REV. B GIANT-VAC MODEL 2000 PTO BLOWER
Ref Part
No. No. Description Qty
46 31562 #12 x 3/4” self tapping screw 6
47 38035 Top hitch point bracket 1
48 31084 1/2” x 1-1/4” hex bolt 4
49 31078 1/2” lockwasher 4
50 31022 1/2” hex nut 4
51-60 ----- -----------------------N/A on Model 2000------------------------ --
61 31463 Hitch pin 2
62 31464 7/8” hitch pin nut 2
63 31465 7/8” hitch pin lockwasher 2
64 21548 Impeller 1
65 31456 Impeller bolt & key (5/8 x 3) 1
66 31457 5/8 lockwasher 1
67 36255 Impeller shaft 1
68 36163 Impeller shaft bearing 2
69 31459 1/2” x 1-3/4” hex bolt (impeller shaft inner bearing) 4
70 31461 1/2” x 2-1/2” hex bolt (impeller shaft outer bearing) 4
71 31460 Impeller shaft outer bearing spacer 4
72 31078 1/2” lockwasher 8
73 31022 1/2” hex nut 8
74 31458 Impeller shaft collar 2
75 36256 Impeller shaft pulley 1
76 36233 Impeller shaft pulley hub ass’y (w/hardware) 1
77 31677 Key - 3/8” x 3-1/2” 1
78 36257 Lower input shaft 1
79 36167 Lower input shaft bearing 2
80 31147 1/2” x 1-3/4” hex bolt 8
81 31043 1/2” flatwasher 4
82 31078 1/2” lockwasher 8
83 31022 1/2” hex nut 8
84 37100 Lower input shaft inner bearing bolt plate 1
85 31453 1/2” x 4” Allen head pusher bolt 2
86 31462 Lower input shaft locking collar 2
87 36258 Lower input shaft pulley 1
88 36231 Lower input shaft pulley hub ass’y (w/hardware) 1
89 31678 Key - 1/4” x 2-1/4” 1
90 36259 Drive belts (4 to a set) 1 set
91 36253 Drive shaft - tractor end* 1
92 36254 Drive shaft - unit end* 1
* 36252 Drive shaft - complete assembly --
93 31449 5/16 drive shaft key 1
94 31448 ¼ x 2-1/2 bolt & nut 1

PARTS LIST # 5772 – REV. B GIANT-VAC MODEL 3200 / 4000 PTO BLOWER
Ref Part Qty
No. No. Description 3200 4000
SHEET 1
1 10178 Blower housing 1 --
1 10111 Blower housing -- 1
2 31084 1/2” x 1-1/4” hex bolt 14 14
2 31147 ½” x 1-1/2” hex bolt (shaft frame bottom cover) 2 2
2a 31043 ½” flatwasher (shaft frame bottom cover) 2 2
3 31022 1/2” lockwasher 16 16
4 31078 1/2” hex nut 16 16
5 20186 Intake baffle 1 1
6 31114 3/8” x 1” hex bolt 5 5
7 31115 3/8” lockwasher 5 5
8 24619 Deflector – left hand discharge 1 --
8 24620 Deflector – right hand discharge 1 --
8 24587 Deflector - typical -- 2
9 31114 3/8” x 1” hex bolt 4 4
10 31388 3/8” lock nut 4 4
11 33119 Caster horn 2 2
12 33120 Caster wheel - 410-350-6 2 2
13 31450 3/4” x 7” axle bolt 2 2
14 33121 Axle spacer 4 4
15 33122 Wheel bearing & seal 4 4
16 31451 3/4-25 axle castle nut 2 2
17 31452 Axle nut cotter pin 2 2
18 31455 Caster horn thrust bearing 1-1/4” 2 2
19 31454 Sleeve bushing 1-1/4” ID 4 4
20 33123 Caster horn spacer set (2”,1”,1/2”) 2 2
21 31489 5/8” flatwasher 2 2
22 31043 1/2” flatwasher 2 2
23 31078 1/2” lockwasher 2 2
24 31084 1/2” x 1-1/4” hex bolt 2 2
25 31437 Caster horn grease fitting 2 2
26 31454 Sleeve bushing 1-1/4” ID 2 2
27 23156 Inner deflector door rod 1 1
28 20187 Inner deflector door 1 1
29 31492 3/8 x ¾” hex bolt 3 3
30 31115 3/8” lockwasher 3 3
31 27179 Spring arm holder 1 1
32 31466 Spring 1 1
33 31476 1/2” lock nut 2 2
34 31043 1/2” flatwasher 2 2
35 23157 Deflector rod upper arm 1 1
36 23155 Control rod 1 1
37 31103 Control rod knob - 3/8” 1 1
38 31424 1/2” lock nut 1 1

PARTS LIST # 5772 – REV. B GIANT-VAC MODEL 3200 / 4000 PTO BLOWER
Ref Part Qty
No. No. Description 3200 4000
SHEET 2
39 10110 Blower back & shaft frame 1 1
40 27178 Control rod guide bracket 1 1
41 31084 1/2” x 1-1/4” hex bolt 2 2
42 31078 1/2” lockwasher 2 2
43 31022 1/2” hex nut 2 2
44 27127 Shaft frame bottom cover 1 1
44a 31368 ½” x 1” bolt, lockwasher & nut (not shown) 2 2
44b 31043 ½” flatwasher (not shown) 2 2
45 37101 Shaft frame top cover plate 1 1
46 31562 #12 x 3/4” self tapping screw 6 6
47 38015 Top hitch point bracket 1 1
48 31084 1/2” x 1-1/4” hex bolt 4 4
49 31078 1/2” lockwasher 4 4
50 31022 1/2” hex nut 4 4
51 38016 Hitch lower point plate 2 2
52 31676 Jack stand spacer - 1/8” 4 4
53 31470 Jack stand spacer - 1/4” 8 8
54 38018 Jack stand side support plate 2 2
55 31467 1/2” x 3-1/2” hex bolt 8 8
56 31078 1/2” lockwasher 8 8
57 31022 1/2” hex nut 8 8
58 38017 Jack stand 2 2
59 31468 Jack stand pin 2 2
60 31469 Jack stand hair clip 2 2
61 31463 Hitch pin 2 2
62 31465 7/8” hitch pin lockwasher 2 2
63 31464 7/8” hitch pin nut 2 2
64 21576 Impeller 1 --
64 21542 Impeller -- 1
65 31456 Impeller bolt & key (5/8 x 3) 1 1
66 31457 5/8 lockwasher 1 1
67 36162 Impeller shaft 1 1
68 36163 Impeller shaft bearing 2 2
69 31459 1/2” x 1-3/4” hex bolt (impeller shaft inner bearing) 4 4
70 31461 1/2” x 2-1/2” hex bolt (impeller shaft outer bearing) 4 4
71 31460 Impeller shaft outer bearing spacer 4 4
72 31078 1/2” lockwasher 8 8
73 31022 1/2” hex nut 8 8
74 31458 Impeller shaft collar 2 2
75 36164 Impeller shaft pulley (4V) 1 --
75 36234 Impeller shaft pulley (5V) -- 1
76 36232 Impeller shaft pulley hub assembly (w/hardware) 1 1
77 31677 Key - 3/8” x 3-1/2” 1 1
78 36166 Lower input shaft 1 1

PARTS LIST # 5772 – REV. B GIANT-VAC MODEL 3200 / 4000 PTO BLOWER
Ref Part Qty
No. No. Description 3200 4000
79 36167 Lower input shaft bearing 2 2
80 31147 1/2” x 1-3/4” hex bolt 8 8
81 31043 1/2” flatwasher 8 8
82 31078 1/2” lockwasher 8 8
83 31022 1/2” hex nut 4 4
84 37100 Lower input shaft inner bearing bolt plate 1 1
85 31453 1/2” x 4” Allen head pusher bolt 2 2
86 31462 Lower input shaft locking collar 2 2
87 36168 Lower input shaft pulley (4V) 1 --
87 36235 Lower input shaft pulley (5V) -- 1
88 36230 Lower input shaft pulley hub ass’y (w/hardware) 1 1
89 31678 Key - 1/4” x 2-1/4” 1 1
90 36165 Drive belts (4 to a set) 1 set --
90 36236 Drive belts (5 to a set) -- 1 set
91 36169 Drive shaft - tractor end* 1 1
92 36170 Drive shaft - unit end* 1 1
* 36171 Drive shaft - complete assembly -- --
93 31449 5/16 drive shaft key 1 1
94 31448 ¼ x 2-1/2 bolt & nut 1 1
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE