BACKPACK
VACUUM
OPERATING & MAINTENANCE
INSTRUCTIONS
INTRODUCTION
READ THIS BOOK
This operator’s book has important information for the
use and safe operation of this machine. Read this book
carefully before starting the machine. Keep this book
and tell all operators to read the book. If you do not
follow the instructions, you can cause an injury or damage equipment, furniture or buildings.
For new books write to:
Zep Inc. - Equipment Division
1340 Seaboard Industrial Blvd.
Atlanta, GA 30318
Carefully inspect all components to ensure that there is
no concealed freight damage. If such damage is discovered, file a “CONCEALED DAMAGE REPORT” immediately with the delivering carrier.
The contents of this manual are based on the latest
product information available at the time of publication. Zep Inc. reserves the right to make changes or
improvements to its machines without notice.
FOR YOUR CONVENIENCE, RECORD THE
FOLLOWING IMPORTANT INFORMATION:
MODEL_______________________________
SERIAL NUMBER______________________
PART NUMBER _________________________
DATE PURCHASED ____________________
IMPORTANT SAFETY INSTRUCTIONS
To assure the safe operation of this machine, you must read and understand all warnings and instructions in this book.
If you do not understand, ask your supervisor.
READ ALL INSTRUCTIONS BEFORE USING THIS MACHINE
WARNING: To reduce the risk of fire, electric shock, or injury:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
You must be trained to operate this machine. This machine is to be operated for its intended use only.
Do not use outdoors or on wet surfaces.
Do not operate this machine unless it is completely assembled.
Always use a three-wire electrical system connected to the electrical ground. For maximum protection against
electrical shock, use a circuit that is protected by a ground fault circuit interrupter. Consult your electrical contractor.
To prevent electric shock, always remove the electrical plug from the electrical outlet before doing any repairs or
maintenance and when leaving the machine unattended.
To prevent electric shock, keep the machine surface dry. Do not subject to rain. Store the machine in a dry building
area. Clean the machine with a dry cloth only.
Machines can cause an explosion when near flammable materials and vapors. Do not use this machine with or
near fuels, grain dust, solvents, thinners, or other flammable materials. Do not use flammables to clean this
machine.
A qualified or authorized person must do maintenance and repairs.
If the machine is not working as it should, has been dropped , damaged, left outdoors, or dropped into water, return
it to a service center
Do not use with damaged cord or plug.
Turn off all controls before unplugging.
Do not use without a dust bag and/or filters in place.
Make sure all labels, decals, warnings, cautions and instructions are fastened to the machine.
Grounding Instructions
This machine must be grounded. If it should malfunction or break
down, grounding provides a path of least resistance for electric
current to reduce the risk of electric shock. This machine is equipped
with a cord having an equipment-grounding conductor and grounding plug. The plug must be inserted into an appropriate outlet that
is properly installed and grounded in accordance with all local
codes and ordinances.
WARNING - Improper connection of the equipment-grounding conductor can result in a risk of electric shock. Check with a qualified
electrician or service person if you are in doubt as to whether the
outlet is properly grounded. Do not modify the plug provided with
the machine - if it will not fit the outlet, have a proper outlet installed
by a qualified electrician.
This machine is for use on a nominal 120-volt circuit, and has a
grounded plug that looks like the plug illustrated in figure A. A
temporary adapter that looks like the adapter illustrated in figures B
and C may be used to connect this plug to a 2-pole receptacle as
shown in figure B if a properly grounded outlet is not available.
The temporary adapter should be used only until a properly
grounded outlet (figure A) can be installed by a qualified electrician. The green colored rigid ear, lug, or the like extending from the
adapter must be connected to a permanent ground such as a
properly grounded outlet box cover. Whenever the adapter is
used, it must be held in place by a metal screw.
NOTE: In Canada, the use of a temporary adapter is not permitted
by the Canadian Electrical Code
EXTENSION CORDS
Use only three-wire 12/3 or larger gauge approved extension
cords that have three-prong grounding type plugs and three-pole
receptacles that accept the appliance’s plug. Replace or repair
any damaged cords or plugs.
NOTE: Do not use adapters shown in figures B & C in Canada
When servicing, refer to authorized person only. Use only identical replacement parts.
2
OPERATING & MAINTENANCE PROCEDURES
THERMAL-PROTECTION INSTRUCTIONS:
OPERATION
This vacuum cleaner is equipped with a thermal-protection device, which will interrupt vacuum motor circuit
automatically to prevent the motor from overheating. Air
restrictions for an extended period will result in the
vacuum motor shutting down. If this occurs, press the
switch to turn the vacuum to the OFF position and wait
a minimum of 5 minutes for the motor to cool to a safe
termperature. Be sure to determine the cause of overheating and rectifiy the problem before using the vacuum
cleaner again or it will continued to overheat and shut
down. In some instances the vacuum motor circuit is
interrupted because of high motor temperature caused
by a dirty dust bag or an airway blockage. Please unplug the vacuum and check the inner paper dust bag
and airway. If the dust bag is too dirty and clogged,
replace it with a new one. If an airway is blocked, please
remove the blockage before reuse. The motor can be
restarted when it is cool.
WARNING! - For the safe operation of this machine
follow the instructions given in this booklet and the training given by your supervisor. Failure to do so can result
in personal injury and/or damage to machine and property!
WARNING! - NEVER USE THIS MACHINE TO PICK
UP VOLATILE, EXPLOSIVE OR HAZARDOUS MATERIALS.
To prepare the machine for operation, make sure it is of
the correct voltage and properly assembled. If in doubt,
ask your supervisor.
FOR DRY PICK UP ONLY:
“Dry” refers to material such as dust, dirt, debris and
dry foam shampoo.
REPAIR SERVICE
1. Plug the cord into a 120-volt, grounded outlet.
2. Turn the machine’s motor on by pressing the rocker
switch that is located on the power cord.
When servicing, use an authorized person only. Use
only identical replacement parts.
PREPARATION
Please refer to Drawing 1.
1. Remove the cover (Item #34) and cover seal ring
(Item #33), pull out the cloth filter bag (Item #31).
Check to see that filter guards (Item#1, Item #2 &
Item #3) have not shifted during shipping.
2. Install an inner paper dust bag (Item #32) inside of
the outer cloth filter bag (Item #31). At the begin
-ning of each shift, the bags should be checked.
Empty or replace as necessary.
3. Note: Never use a paper dust bag without the cloth
filter bag (Item #31).
4. Place the cover seal ring (Item #33) on the dust
bag’s opening (Item #32)
5. Replace the cover (Item #34) and clip the sunken
edge of the cover tight by pushing downward on the
cover clip (Item #7).
6. Push the connector tube (Item #35) into the cover
(Item #34).
7. Check the wear on the cord by the vacuum body and
at the plug. Pass the power supply cord (Item #13)
through the strip outside the left side of the waist
belt (Item #39).
8. Fix the switch box under the sewn strap and knot
the other strap around the switch box.
9. Adjust the shoulder strap to allow the waist belt to
be buckled around your waist.
10. Fasten the waist belt and chest belt snugly and
make sure the weight is resting comfortably on
your hips. NOTE: The back-plate is adjustable up
or down by removing the four screws (Item #27)
that attach to the vacuum body (Item #28).
3
MAINTENANCE
Good maintenance procedures assure better operation, fewer repairs and longer life for your machine.
WARNING! - Always disconnect the machine’s electrical plug from the electrical outlet before doing any clean
up, repairs or maintenance of the machine and when leaving the machine unattended.
CLEAN THE MACHINE AFTER EACH USE:
1. Each week rinse, dry and return the foam filter (Item #22) at the bottom of the vacuum tank below the vacuum motor.
2. Clean the vacuum tank. Release the clamps on each side of the top of the vacuum tank. Lift the filter assembly out
of the vacuum tank and set aside. Wipe the inside and outside of the vacuum tank with a clean dry cloth.
3. Empty and check the filter assembly. Empty the recovered soilage into a suitable container and remove and shake
the cloth filter bag to remove clinging dirt. Lightly brush the inside of the cloth filter bag to remove embedded dirt .
Check the cloth filter bag for tears or holes; repair or replace if necessary. Install a clean paper dust bag into
assembly into the cloth filter bag and place them back into the vacuum tank.
ELECTRICAL CABLE:
Check the cord for any nicks, cuts or damage. Report these to your supervisor for correction.
VACUUM TANK ASSEMBLY:
1. Gaskets: Clean the Cover Seal Ring gasket.
2. Vacuum Motor Guards: Inspect for dirt or damage and replace if damaged or filled with dirt.
FILTER MAINTENANCE
1. Check the paper dust bag (Item #32) each time you start and finish vacuuming. A clogged and dirty dust bag
restricts air flow and results in reduced suction and overheating.
2. While vacuuming, stop every two hours or as needed to shake out the paper dust bag (Item #32). Replace the paper
dust bag when necessary. Note: Lift both paper dust bag and cloth filter bag out at the same time to avoid ripping
the paper dust bag, especially when it is full.
3. Once a month (or more often if necessary) hand or machine wash the cloth dust bag (Item #31) and let it AIR DRY.
DO NOT PUT IN DRYER.
4. Once a month (or more if necessary) clean the foam filter (Item #2) between the motor guards, located inside the
vacuum tank under the paper dust bag and cloth flter bag. To do this remove the top piece of the motor guard (Item
#1) and remove the foam filter (Item #2). Shake it out, rinse it and let it air dry thoroughly. Before the next use, reinstall a DRY foam filter (Item #2). Replace with new foam filter if it becomes worn or damaged. Re-install motor
guard (Item #1) by firmly snapping the guard in place.
5. Each week rinse and air dry the foam filter (Item #22) at the bottom of the vacuum tank below the vacuum motor. To
do this pull out the round rubber support (Item #21) and remove foam filter (Item #22). Rinse the foam filter and let
it air dry thoroughly. Before the next use, re-install foam filter (Item #22) then re-install round rubber support (Item
#21) into the canister to support the foam filter.
4
NOTES
5
VACUUM ASSEMBLY
1
6
BACKPACK VACUUM PARTS LISTING
ITEM
1
2
3
4
5
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35.1
35.2
35.3
36
37
38
39
PART NO.
633840
633340
633841
635240
911434
635140
911435
964202
964203
631340
911436
908110
911437
631341
908111
632040
632041
632042
964204
638540
635640
964205
633842
964206
637340
964207
638640
980664
637341
630641
630640
637342
632341
632440
632441
632442
911438
633940
634140
634540
DESCRIPTION
Motor Guard
Foam Filter
Motor Guard
Vacuum Motor
Thermal Protector
Cover Latch
Rocker Switch
Screw (M3 x 25)
Screw (M3 x 12)
Upper Switch Box
Connector Terminal and Insulator
Power Supply Cords and Cord Sets
Wire Connector
Lower Switch Box
Connection Cord
Connection Cable Clamp Nut
Connection Cable Clamp Part 1
Connection Cable Clamp Part 2
Screw (M3 x 12)
Round Rubber Support
Sound Muffler (Foam Filter)
Screw (M3 x 10)
Plastic Guard
Screw (M5 x 40) and Washer
Motor Clamping Ring
Screw (M8 x 15)
Vacuum Tank
Washer
Rubber Ring
Cloth Filter Bag
Paper Dust Bag
Cover Seal Ring
Cover
Hose Cuff
Hose Cuff Screw
Screw Cuff
Wire Connector
Handle
Hose
Backpack Harness
7
WARRANTY POLICY
LIMITED WARRANTY
The Zep Inc. Backpack Vacuum has been manufactured, tested and inspected in accordance with specific engineering
requirements and is WARRANTED to be free from defects in workmanship and materials as follows from the date of
purchase:
One (1) Year Parts & Labor – unless excluded below
This warranty extends to the original user/purchaser and only when used, operated and maintained in accordance with
Zep Inc. Operating and Maintenance instructions.
This warranty does not apply to certain wear parts and accessories of the machine such as electrical cords, carbon
motor brushes, hoses, tools, filters, etc. nor does it apply to damage or failure caused by improper use, abuse or
neglect. Warranty credit or replacement of return parts including motors, etc., is subject to incoming inspection of
those items.
To secure repair under this warranty, the following procedure should be taken:
1) The inoperative machine or warranted parts must be delivered to the authorized service center with shipping and
delivery charges prepaid. If unable to locate a service center, you may contact Zep Inc. at the address listed herein
for the location of the nearest repair center or agent or for other instructions pertaining to your warranty difficulty.
2) Upon compliance with the above warranty procedure, all warranted repairs would be completed at no additional
charge or cost to the user.
3) Only Zep Inc. or its authorized dealers and agents may make no charge warranty repairs on this product. All others
do so at their own risk.
This warranty limits Zep Inc. liability to the repair of the product and/or warranted parts replacement and does not
include incidental or consequential damages arising from the use of a Zep Inc. machine whether defective or not.
This warranty is in lieu of all other expressed or implied warranties and is extended to the original purchaser/user.
8/10