COPYRIGHT © NOVEMBER, 2001 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
PRINTED IN TAIWAN.
4 H.P. DUST COLLECTOR
MODEL G9958
INSTRUCTION MANUAL
WARNING
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains
chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement, and other
masonry products.
• Arsenic and chromium from chemically treated
lumber.
Your risk from these exposures varies, depending on
how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated
area, and work with approved safety equipment, such
as those dust masks that are specially designed to filter out microscopic particles.
G9958 4 H.P. Dust Collector -1-
Table Of Contents
PAGE
1. SAFETY
SAFETY INSTRUCTIONS FOR POWER TOOLS ..................................................2
ADDITIONAL SAFETY INSTRUCTIONS FOR DUST COLLECTORS....................4
2. CIRCUIT REQUIREMENTS
220V OPERATION ..................................................................................................5
CIRCUIT LOAD ........................................................................................................5
GROUNDING ..........................................................................................................6
EXTENSION CORDS ..............................................................................................6
3. INTRODUCTION
COMMENTARY........................................................................................................7
UNPACKING ............................................................................................................8
PIECE INVENTORY ................................................................................................8
CLEAN UP................................................................................................................9
SITE CONSIDERATIONS ........................................................................................9
4. ASSEMBLY
BEGINNING ASSEMBLY ......................................................................................10
BASE ......................................................................................................................10
FAN/MOTOR ASSEMBLY......................................................................................11
COLLECTORS ......................................................................................................11
SUPPORT BRACKETS..........................................................................................12
4 TO 1 INLET ........................................................................................................12
5. ADJUSTMENTS
GENERAL ..............................................................................................................13
MATERIAL SELECTION ........................................................................................13
SYSTEM GROUNDING ........................................................................................14
DESIGN SUGGESTIONS ......................................................................................15
6. OPERATIONS
TEST RUN..............................................................................................................16
GENERAL ..............................................................................................................16
7. MAINTENANCE
GENERAL ..............................................................................................................17
LUBRICATION........................................................................................................17
BAG CLEANING ....................................................................................................17
8. CLOSURE ....................................................................................................................18
MACHINE DATA................................................................................................................19
PARTS BREAKDOWN AND PARTS LISTS ................................................................20-21
WARRANTY AND RETURNS ..........................................................................................22
-2- G9958 4 H.P. Dust Collector
SECTION 1: SAFETY
For Your Own Safety Read Instruction
Manual Before Operating This Equipment
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
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.
This symbol is used to alert the user to useful information about
proper operation of the equipment.
The purpose of safety symbols is to attract your attention to possible hazardous conditions. This
manual uses a series of symbols and signal words which are intended to convey the level of
importance of the safety messages. The progression of symbols is described below. Remember
that safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures.
NOTICE
Safety Instructions For Power Tools
5. KEEP CHILDREN AND VISITORS
AWAY. All children and visitors should be
kept a safe distance from work area.
6. MAKE WORKSHOP CHILD PROOF with
padlocks, master switches, or by removing
starter keys.
7. DO NOT FORCE TOOL. It will do the job
better and safer at the rate for which it was
designed.
8. USE RIGHT TOOL. Do not force tool or
attachment to do a job for which it was not
designed.
1. KEEP GUARDS IN PLACE and in working
order.
2. REMOVE ADJUSTING KEYS AND
WRENCHES. Form habit of checking to
see that keys and adjusting wrenches are
removed from tool before turning on.
3. KEEP WORK AREA CLEAN. Cluttered
areas and benches invite accidents.
4. DO NOT USE IN DANGEROUS ENVIRONMENT. Do not use power tools in
damp or wet locations, or where any flammable or noxious fumes may exist. Keep
work area well lighted.
G9958 4 H.P. Dust Collector -3-
9. USE PROPER EXTENSION CORD. Make
sure your extension cord is in good condition. Conductor size should be in accordance with the chart below. The amperage
rating should be listed on the motor or tool
nameplate. An undersized cord will cause
a drop in line voltage resulting in loss of
power and overheating. Your extension
cord must also contain a ground wire and
plug pin. Always repair or replace extension cords if they become damaged.
Minimum Gauge for Extension Cords
10. WEAR PROPER APPAREL. Do not wear
loose clothing, gloves, neckties, rings,
bracelets, or other jewelry which may get
caught in moving parts. Non-slip footwear
is recommended. Wear protective hair covering to contain long hair.
11. ALWAYS USE SAFETY GLASSES. Also
use face or dust mask if cutting operation is
dusty. Everyday eyeglasses only have impact
resistant lenses, they are NOT safety glasses.
12. SECURE WORK.Use clamps or a vise to hold
work when practical. It’s safer than using your
hand and frees both hands to operate tool.
13. DO NOT OVER-REACH. Keep proper
footing and balance at all times.
14. MAINTAIN TOOLS WITH CARE. Keep
tools sharp and clean for best and safest
performance. Follow instructions for lubricating and changing accessories.
15. USE RECOMMENDED ACCESSORIES.
Consult the owner’s manual for recommended accessories. The use of improper
accessories may cause risk of injury.
LENGTH
AMP RATING 25ft 50ft 100ft
0-6 18 16 16
7-10 18 16 14
11-12 16 16 14
13-16 14 12 12
17-20 12 12 10
21-30 10 10 No
Safety Instructions For Power Tools
16. REDUCE THE RISK OF UNINTENTIONAL STARTING. On machines with magnet-
ic contact starting switches there is a risk of
starting if the machine is bumped or jarred.
Always disconnect from power source
before adjusting or servicing. Make sure
switch is in OFF position before reconnecting.
17. MANY WOODWORKING TOOLS CAN
“KICKBACK” THE WORKPIECE toward the
operator if not handled properly. Know what
conditions can create “kickback” and know
how to avoid them. Read the manual accompanying the machine thoroughly.
18. CHECK DAMAGED PARTS. Before fur-
ther use of the tool, a guard or other part
that is damaged should be carefully
checked to determine that it will operate
properly and perform its intended function.
Check for alignment of moving parts, binding of moving parts, breakage of parts,
mounting, and any other conditions that
may affect its operation. A guard or other
part that is damaged should be properly
repaired or replaced.
19. NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF. Do not
leave tool until it comes to a complete stop.
20. NEVER OPERATE A MACHINE WHEN
TIRED, OR UNDER THE INFLUENCE OF
DRUGS OR ALCOHOL. Full mental alert-
ness is required at all times when running a
machine.
21. NEVER ALLOW UNSUPERVISED OR
UNTRAINED PERSONNEL TO OPERATE THE MACHINE. Make sure any
instructions you give in regards to machine
operation are approved, correct, safe, and
clearly understood.
22. IF AT ANY TIME YOU ARE EXPERIENCING DIFFICULTIES performing the intend-
ed operation, stop using the machine! Then
contact our service department or ask a
qualified expert how the operation should
be performed.
-4-
Additional Safety Instructions For The Dust
Collector
5. DO NOT ALLOW STEEL TO STRIKE
AGAINST STEEL WHICH MAY PRODUCE
A SPARK. Sparks can smolder in wood dust
for a long time before fire or flame is detected. If metal contacts metal during operation,
immediately turn off the dust collector,
unplug the power cord from the outlet or
throw the disconnect and wait for all moving
parts to stop. Remove collection bags and
empty the dust into an approved air tight
metal container in case of spark. Remedy
the metal to metal contact problem before
resuming operation.
6. WHEN EMPTYING DUST FROM THE COLLECTION BAGS, wear a respirator and
safety glasses. Empty dust into an approved
container and dispose of properly.
7. IF AT ANY TIME YOU ARE EXPERIENC-
ING DIFFICULTIES PERFORMING THE
INTENDED OPERATION, stop using the
machine! Then contact our service department or ask a qualified expert how the operation should be performed.
8. BE AWARE THAT CERTAIN WOODS
MAY CAUSE AN ALLERGIC reaction in
people and animals, especially when
exposed to fine dust. Make sure you know
what type of wood dust you will be exposed
to and the possibility of a allergic reaction.
Always wear an approved respirator!
1. THIS DUST COLLECTOR IS TO BE USED
FOR WOOD DUST COLLECTION ONLY.
Do not use this dust collector to pick up liquids and metal scrap including, but not limited to, nails and filings. Metallic debris will
contact the spinning impeller and could
spark. The spark could then cause a sawdust explosion and severe fire hazard. Also,
do not pick up material which cannot safely
pass through the impeller such as solid
wood scraps.
2. DO NOT PLACE YOUR HANDS OR
TOOLS NEAR THE OPEN INLET during
operation for any reason including, but not
limited to, unclogging material and testing
suction. The impeller could cause serious
damage to body parts if touched while spinning.
3. PROBLEMS CONCERNED WITH ANY
MOVING PART(S) or accessories must be
investigated and corrected with the power
disconnected and after everything has
come to a complete stop.
4. SUSPENDED DUST PARTICLES IN CON-
JUNCTION WITH AN IGNITION SOURCE,
may cause an explosion. Do not operate the
dust collector in areas where explosion risks
would be high if dust were dispersed into
the area. Areas of high risk include, but are
not limited to, areas near pilot lights and/or
open flames.
G9958 4 H.P. DUST COLLECTOR
No list of safety guidelines can be complete. Every shop environment is different.
Always consider safety first, as it applies to
your individual working conditions. Use
this and other machinery with caution and
respect. Failure to follow guidelines could
result in serious personal injury, damage to
equipment or poor work results.
G9958 4 H.P. Dust Collector -5-
SECTION 2: CIRCUIT REQUIREMENTS
220V Operation
Circuit Load
Figure 1. NEMA 6-50, 220V plug and outlet.
The Model G9958 has a 4 H.P., 3450 R.P.M.
motor which requires a 220V single-phase circuit.
The cord set enclosed does not have a plug as
the style of plug you require will depend upon the
type of service you currently have or plan to
install. The motor will draw about 32 amps at
220V under load. If you operate the Model G9958
on any circuit that is already close to its capacity,
it might blow a fuse or trip a circuit breaker.
However, if an unusual load does not exist, and
the circuit breaker still trips, have the circuit
inspected by a qualified electrician. Do not
attempt to modify an existing circuit by replacing
the circuit breaker with one rated for a higher
amperage.
When operating at 220V, we recommend using a
NEMA-style L6-50 plug and outlet as shown in
Figure 1. We also recommend using wire capable
of handling a 50 amperage draw. Only a 35 amp
circuit breaker is needed in the circuit though
because the Model G9958 will only draw about 32
amps under load. It is always a good idea to
match the amperage rating of the wiring to the
plug and outlet, even if you will be using a lower
amerage circuit breaker. This allows the future
modification of the circuit up to the maximum
amerage rating of the plug, outlet and wiring, by
installing a matching amp rated circuit breaker.
You may also “hard-wire” the machine directly to
your panel, provided you place a disconnect
switch near the machine. Check the electrical
codes in your area for specifics on wiring requirements.
If you are unsure about
the correct installation
or modification of electrical circuits, please
consult the advice of a
qualified electrician.
Failure to do so could
result in serious personal injury.
-6- G9958 4 H.P. Dust Collector
We do not recommend the use of extension cords
with 220V equipment. It is much better to arrange
the placement of your equipment and the installed
wiring to eliminate the need for extension cords.
Should it be necessary to use an extension, make
sure the cord is rated Hard Service (grade S) or
better. Refer to the chart in Section 1: Safety
Instructions to determine the minimum gauge for
the extension cord when using either 110V or
220V. The extension cord must also contain a
ground wire and plug pin. Always repair or replace
extension cords when they become worn or damaged.
We have covered some basic electrical
requirements for the safe operation of your
machine. These requirements are not necessarily comprehensive. You must be sure
that your particular electrical configuration
complies with local and state codes.
Ensure compliance by checking with your
local municipality or a licensed electrician.
Grounding Extension Cords
In the event of an electrical short, grounding provides electric current a path of least resistance to
reduce the risk of electrical shock. This tool is
equipped with an electric cord having an equipment-grounding conductor which must be properly connected to a grounding plug. The plug must
be plugged into a matching outlet that is properly
installed and grounded in accordance with all
local codes and ordinances.
Improper connections of the electrical-grounding
conductor can result in the risk of electric shock.
The conductor with green or green and yellow
striped insulation is the electrical-grounding conductor. If repair or replacement of the electric cord
or plug is necessary, do not connect the equipment grounding conductor to a live terminal.
This equipment must be
grounded. Verify that any
existing electrical outlet
and circuit you intend to
plug into is actually
grounded. Under no circumstances should the
grounding pin from any
three-pronged plug be
removed. Serious injury
may occur.
G9958 4 H.P. Dust Collector -7-
SECTION 3: INTRODUCTION
We are proud to offer the Grizzly Model G9958
Dust Collector. The Model G9958 is part of a
growing Grizzly family of fine woodworking
machinery. When used according to the guidelines set forth in this manual, you can expect
years of trouble-free, enjoyable operation and
proof of Grizzly’s commitment to customer satisfaction.
The Model G9958 is a 4 H.P., 3560 CFM dust collector, capable of handling 4 or more running
machines at one time. The dust collector also fea-
tures a magnetic switch, 13" impeller and 4 bag
collection. A number of fittings, hoses, pipes,
bags and accessories for the Model G9958 are
available through the Grizzly catalog.
We are also pleased to provide this manual with
the Model G9958. It was written to guide you
through assembly, review safety considerations,
and cover general operating procedures. It represents our effort to produce the best documentation possible. If you have any comments regarding this manual, please write to us at the address
below:
Grizzly Industrial, Inc.
C
/O Technical Documentation
P.O. Box 2069
Bellingham, WA 98227-2069
Commentary
Most importantly, we stand behind our machines.
If you have any service questions or parts
requests, please call or write us at the location
listed below.
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Fax: (800) 438-5901
E-Mail: techsupport@grizzly.com
Web Site: http://www.grizzly.com
The specifications, drawings, and photographs
illustrated in this manual represent the Model
G9958 as supplied when the manual was prepared. However, owing to Grizzly’s policy of continuous improvement, changes may be made at
any time with no obligation on the part of Grizzly.
Whenever possible, though, we send manual
updates to all owners of a particular tool or
machine. Should you receive one, we urge you to
insert the new information with the old and keep it
for reference.
Read the manual before
assembly and operation. Become familiar
with the machine and its
operation before beginning any work. Serious
personal injury may
result if safety or operational information is not
understood or followed.
-8- G9958 4 H.P. Dust Collector
Unpacking Piece Inventory
NOTICE
A full parts list and breakdown can be found
toward the end of this manual. For easier
assembly, or to identify missing parts,
please refer to the detailed illustrations at
the end of the manual.
After all the parts have been removed from the
carton as shown in Figure 2, you should have:
• Main Base
• Right and Left Side Base
• Right and Left Side Legs
• Fan/Motor Assembly
• Collector Bodies
• Eight Casters
• Gaskets
• Two Upper Bag Supports
• Two Hangers
• Hardware Bag
• Two Bottom Bags
• Two Upper Bags
• Four Hole Inlet
In the event that any nonproprietary parts are
missing (e.g. a nut or a washer), we would be glad
to replace them, or, for the sake of expediency,
replacements can be obtained at your local hardware store.
If moving this machine
up or down stairs, the
machine must be dismantled and moved in
smaller pieces. Make
sure floor and stair
structures are capable of
supporting the combined weight of the
machine parts and the
people moving them.
The G9958 is a heavy
machine, 320 lbs. shipping weight. DO NOT
over-exert yourself
while unpacking or
moving your machine –
you will need assistance. Serious personal
injury may occur if safe
moving methods are not
followed.
The Model G9958 is shipped from the manufacturer in a carefully packed carton. If you discover
the machine is damaged after you’ve signed for
delivery, immediately call Customer Service for
advice.
When you are completely satisfied with the condition of your shipment, you should inventory its
parts.
Figure 2. G9958 parts layout.
Some metal parts may
have sharp edges on
them after they are
formed. Please examine
the edges of all metal
parts before handling
them. Failure to do so
could result in injury.
G9958 4 H.P. Dust Collector -9-
Clean Up
The unpainted surfaces are coated with a waxy oil
to protect them from corrosion during shipment.
Remove this protective coating with a solvent
cleaner or citrus-based degreaser such as
Grizzly’s G7895 Degreaser. Avoid chlorine-based
solvents as they may damage painted surfaces
should they come in contact. Always follow the
usage instructions on the product you choose for
clean up.
Site Considerations
FLOOR LOAD
Your Model G9958 represents a moderate weight
load in an average footprint. Most commercial or
home shop floors should be sufficient to carry the
weight of the Model G9958. If you question the
strength of your floor, you can opt to reinforce it.
WORKING CLEARANCES
Working clearances can be thought of as the distances between machines and obstacles that
allow safe operation of every machine without limitation. Consider existing and anticipated machine
needs, size of material to be processed through
each machine, and space for auxiliary stands
and/or work tables. Also, consider the relative
position of each machine to one another for efficient material handling. Be sure to allow yourself
sufficient room to safely run your machines in any
foreseeable operation and keep dust collection
hoses off the floor and out of the way.
LIGHTING AND OUTLETS
Lighting should be bright enough to eliminate
shadows and prevent eye strain. Electrical circuits
should be dedicated or large enough to handle
combined motor amp loads. Outlets should be
located near each machine so power or extension
cords are not obstructing high-traffic areas. Be
sure to observe local electrical codes for proper
installation of new lighting, outlets, or circuits.
Do not smoke while using
solvents. A risk of explosion or fire exists and may
result in serious personal
injury.
Make your shop “child
safe.” Ensure that your
workplace is inaccessible
to youngsters by closing
and locking all entrances
when you are away. Never
allow visitors in your shop
when assembling, adjusting or operating equipment.
Do not use gasoline or
other petroleum-based
solvents. They have low
flash points which make
them extremely flammable. A risk of explosion
and burning exists if
these products are
used. Serious personal
injury may occur if this
warning is ignored.
Many of the solvents
commonly used to clean
machinery can be toxic
when inhaled or ingested. Always work in wellventilated areas far from
potential ignition sources
when dealing with solvents. Use care when disposing of waste rags and
towels to be sure they do
not create fire or environmental hazards.
-10- G9958 4 H.P. Dust Collector
SECTION 4: ASSEMBLY
Beginning Assembly
Most of your Model G9958 has been assembled
at the factory, but some parts must be assembled
or installed after delivery. We have organized the
assembly process into steps. Please follow along
in the order presented here.
TOOLS REQUIRED: You will need a 12 and
14mm wrench.
Base
Disconnect power to the
machine when performing any maintenance,
assembly or adjustments. Failure to do this
may result in serious
personal injury.
Keep loose clothing
rolled up and out of the
way of machinery and
keep hair pulled back.
Wear safety glasses during the entire assembly
process. Failure to comply may result in serious
personal injury.
Start by turning the main base upside down and
placing it on a level surface. Mount four of the
casters to the corners with (16)
5
⁄16" x 1⁄2" hex bolts
as shown in Figure 3.
Place the left and right side bases upside down
and attach the remaining four casters to the corners with the four mounting holes as shown in
Figure 4. Use the same fasteners and procedure
as on the main base.
Figure 3. Mounting casters to main base.
Figure 4. Mounting casters to the side bases.
Some metal parts may
have sharp edges on
them after they are
formed. Please examine
the edges of all metal
parts before handling
them. Failure to do so
could result in injury.
!
G9958 4 H.P. Dust Collector -11-
Align the right and left side bases with the main
base and attach them using (8)
5
⁄16" x 1⁄2" hex bolts
as shown in Figure 5.
Lay the fan/motor assembly upside down and
attach the four legs using (8)
5
⁄16" x 1⁄2" hex bolts as
shown in Figure 6.
Turn the fan/motor assembly rightside up and
place it on top of the base assembly. Line up the
mounting holes in the legs with those in the base
and attach using (8)
5
⁄16" x 1⁄2" hex bolts as shown
in Figure 7.
Figure 5. Assembling the three base sections.
Figure 6. Connect the fan/motor to the legs.
Figure 7. Attach the fan/motor/leg to the base.
Fan/Motor Assembly
Place one of the rubber gaskets on one of the two
intake openings. While holding the gasket in
place, attach one of the collectors to the intake
opening, making sure the gasket is aligned with
the mounting holes. Fasten them together using
(8)
5
⁄16" x 1" hex bolts as shown in Figure 8.
Repeat this procedure for attaching the second
collector to the other intake opening. Make sure
these bolts are fastened tight so they make a
good seal.
Collectors
Figure 8. Attaching the collectors.
-12- G9958 4 H.P. Dust Collector
Connect the two upper bag supports and hanger
rods using (4)
1
⁄4" x 1⁄2" hex head bolts. Next, slide
the support bracket assemblies into each of the
mounting holes on the fan/motor assembly and
fasten with (2)
1
⁄4" x 1⁄2" hex head bolts. See
Figure 9.
Hook the loops at the top of the upper bags over
the support bracket hangers as shown in Figure
10. Pull the upper bag openings over the top
opening of the collectors. Cinch the straps and
tighten the bag clamps, securing the upper bags
around the rim of the collector as shown in Figure
11.
Support Brackets
Figure 9. Attaching the support brackets.
Figure 11. Attaching dust bags.
Figure 10. Hang bags on support hooks.
The dust collector can operate with up to four
machines running simultaneously. Included is a 4
to 1 inlet adapter that allows up to four separate
lines to connect to the main assembly. There are
also two inlet caps to seal off the inlets that are
not used. The inlets and inlet caps are secured to
the main assembly by a press on fit.
4 To 1 Inlet
G9958 4 H.P. Dust Collector -13-
Material Selection
General
You have many choices regarding main line and
branch line duct material. In most commercial
workshops, the main line and branch lines are
usually metal duct. Flexible hose is then used to
connect each machine to the branch lines. In the
case of small home shops, flexible hose may be
used for both main line and branch line ducts.
Plastic duct is also a popular material for home
shops. Please be aware that there is a fire or
explosion hazard if plastic duct material is used
for dust collection without being grounded against
static electrical charge build-up. This topic will be
discussed later in the manual.
The Model G9958 can be operated as either a
stationary or a mobile unit. There are advantages
and disadvantages to both set-ups. The advantage of the mobile system is eliminating the cost
of many ducts and fittings. On the other hand, the
stationary system is more versatile and convenient.
The Model G9958 is designed to be a central dust
collector system. Locate the dust collector in an
out of the way location such as a corner or separate room. The dust collector is capable of collecting dust from up to four machines running
simultaneously. Because of the large suction
capacity of the Model G9958, great flexibility is
possible in the planning and designing of your
dust collection duct layout. Grizzly offers a complete line of dust collection accessories for setting
up a stationary system. Additionally, Grizzly offers
a complete guide book entitled Dust Collection
Basics.
Whatever system you choose, always make sure
there are no open flames or pilot lights in the
same room as the dust collector. There is a risk of
explosion if dust is dispursed into the air.
METAL DUCT
Metal duct comes in many varieties. Stove pipe,
heating/ventilation duct and duct made especially
for dust collection are all options. Advantages of
metal duct is its conductivity and that it does not
contribute to static electrical charge build-up.
However, static charges are still produced when
dust particles strike other dust particles as they
move through the duct. Since metal duct is a conductor, it can be grounded quite easily to dissipate
any static electrical charges. However, metal duct
is generally more expensive than plastic duct and
it is not usually airtight unless specifically manufactured for dust collection. Specially manufactured metal duct, on the other hand, is quite
expensive. Metal duct is also generally more difficult to cut and assemble.
FLEXIBLE HOSE
Flexible rubber hose, polyethylene, plastic flexhose and other flexible ribbed hose is generally
used for short runs, small shops and at rigid ductto-tool connections. There are many different
types of flex hose on the market today. These are
manufactured from materials such as polyethylene, PVC, cloth hose dipped in rubber and even
metal, including steel and aluminum.
There are also many kinds of pure plastic flexible
hose, such as non-perforated drainage type hose
and dryer vent hose. Drainage type hose, while
being economical, does not quite have the flexibility required for dust collection. The inside of the
duct is also deeply corrugated and can increase
the static pressure loss by as much as 50% over
smooth wall duct. Dryer vent hose, while being
completely flexible, is non-resistant to abrasion
and has a tendency to collapse in a negative
pressure system.
If using flex-hose, you should choose one of the
many types that are designed specifically for the
movement of solid particles, i.e. dust, grains and
plastics. However, the cost of specifically
designed flexible duct can vary greatly. Grizzly
offers polyethylene hose which is well suited for
SECTION 5: DESIGNING THE SYSTEM
-14- G9958 4 H.P. Dust Collector
the removal of particulate matter, especially sawdust, since it is durable and completely flexible.
Polyethylene is also very economical and available in a wide variety of diameters and lengths for
most applications.
PLASTIC DUCT
The popularity of plastic duct is due to the fact that
it is an economical and readily available product.
It is also simple to assemble and easily sealed
against air loss. The primary disadvantage of
plastic duct for dust collection, whether black ABS
or white PVC and even rubber or polyethylene
flex-hose, is the inherent danger of static electrical build-up.
Since plastic hose is abundant, relatively inexpensive, easily assembled and air tight, it is a very
popular material for conveying dust from woodworking machines to the dust collector. We recommend using flexible hose (flex-hose) to connect the woodworking machine to the dust collector. However, plastic flex-hose and plastic duct
are an insulator, and dust particles moving
against the walls of the plastic duct create a static electrical charge build up. This charge will build
until it discharges to a ground. If a grounding
medium is not available to prevent static electrical
charge build up, the electrical charge will arc to
the nearest grounded source. This electrical discharge may cause an explosion and subsequent
fire inside the system.
To protect against static electrical charge build up
inside a non-conducting duct, a bare copper wire
should be placed inside the duct along its length
and grounded to the dust collector. You must also
confirm that the dust collector is continuously
grounded through the electrical circuit to the electric service panel.
If you connect the dust collector to more than one
machine by way of a non-conducting branching
duct system and blast gates, the system must still
be grounded as mentioned above. We recommend inserting a continuous bare copper ground
wire inside the entire duct system and attaching
the wire to each grounded woodworking machine
and dust collector.
Be sure that you extend the bare copper wire
down all branches of the system. Do not forget to
connect the wires to each other when two branches meet at a Y or T connection. Use wire nuts.
Ensure that the entire system is grounded. If
using plastic blast gates to direct air flow, the
grounding wire must be jumped (Figure 12)
around the blast gate without interruption to the
grounding system.
System Grounding
We also recommend wrapping the outside of all
plastic ducts with bare copper wire to ground the
outside of the system against static electrical
charge build up. Wire connections at Y’s and T’s
should be made with wire nuts.
Figure 12. Ground jumper wire when using plas-
tic blast gates and metal duct.
Plastic Blast Gate
Metal Duct
Copper Ground Wire
Guard against static
electric build up.
Ground all dust collection hose and pipe.
G9958 4 H.P. Dust Collector -15-
4. Gradual directional changes are more efficient
than sudden directional changes (i.e. use the
largest corner radius possible when changing
hose or pipe direction).
5. Each individual machine should have a blast
gate to control suction from one machine to
another.
6. The simpler the system, the more efficient and
less costly it will be.
The best way to plan your new system is to draw
a bird’s eye view (as shown in
Figure 14)
of your
shop and sketch the following:
1. Your desired location of the dust collector,
usually in a corner or along a wall.
2. The location of each machine in the system.
3. The location of the main line duct and each
branch line.
4. The location of any obtrusion such as a joist or
heating duct, that will require special duct routing.
When designing a successful dust collection system, planning is the most important step. Before
you set out to run the first section of duct, consider these general guidelines for an efficient system:
1. Machines that produce the most saw dust
should be placed nearest to the dust collector.
These machines include thickness planers,
shapers, sanders and bandsaws.
2. Ideally you should design the duct system to
have the shortest possible mainline run and to
have short secondary branch ducts.
3. Directional changes should be kept to a mini-
mum. The more directional change fitting you
use, the greater the loss of overall static pressure.
Design Suggestions
Figure 13. Flex-hose grounded to machine.
Ground Screw
Flex-Hose
Internal Ground Wire
External Ground Wire
Figure 14. Bird’s eye planning view.
Attach the bare ground wire to each stationary
woodworking machine and attach the dust collec-
tor frame with a ground screw as shown in Figure
13. Ensure that each machine is continuously
grounded to the grounding terminal in your electric service panel.
Main Line
Collector
Branch Line
Dust
-16- G9958 4 H.P. Dust Collector
SECTION 6: OPERATIONS
Once assembly is complete and adjustments are
done to your satisfaction, you are ready to test run
the machine.
Turn on the power supply at the main panel.
Press the START button. Make sure that your finger is poised on the STOP button, just in case
there is a problem. The dust collector should run
smoothly, with little or no vibration or rubbing noises. Strange or unnatural noises should be investigated and corrected before operating the
machine further.
If you cannot easily locate the source of an
unusual noise or vibration, contact our service
department for help.
Test Run
General
Disconnect power to the
machine when performing any maintenance,
assembly or adjustments. Failure to do this
may result in serious
personal injury.
Wear safety glasses during the entire operations
process. Failure to comply may result in serious
personal injury.
Keep loose clothing
rolled up and out of the
way of machinery and
keep hair pulled back.
Operating your Model G9958 is simple and
straightforward. Blast gates located at each of the
machines controls the air flow from the woodworking machine to the dust collector. If a
machine is not being used, keep the blast gate
closed to maintain higher levels of efficiency
throughout the system.
Always wear a dust
mask when operating
the Model G9958. Using
this machine produces
sawdust which may
cause allergic reactions
or respiratory problems.
!
G9958 4 H.P. Dust Collector -17-
SECTION 7: MAINTENANCE
Lubrication
Bag Cleaning
Since all bearings are shielded and permanently
lubricated, simply leave them alone until they
need to be replaced. Do not lubricate them.
Regular periodic maintenance on your Model
G9958 Dust Collector will ensure its optimum performance. Make a habit of inspecting your
machine each time you use it. Check for the following conditions and repair or replace when necessary:
1. Loose mounting bolts.
2. Worn switch.
3. Worn or damaged cords and plugs.
4. Any other condition that could hamper the
safe operation of this machine.
5. Do not let collection bags get completely
full.
General
It is always a good idea to empty the collection
bags on a regular basis. Emptying the collection
bags allows the machine to operate at a much
higher level of efficiency.
Always wear the appropriate respirator or dust
mask and safety glasses when emptying the collection bags. Small dust particles can escape the
bags during emptying, causing them to become
airborn and easily inhailed. This microscopic airborn dust is extremely unhealthy to breathe and
can cause serious health problems.
While the Model G9958 excels at collecting the
majority of wood dust produced by your
machines, we always recommend the supplemental aid of a shop air filter such as the Grizzly
G5955 or G9956. Air filters are designed to collect
the smaller dust particles that a dust collector
bags cannot trap.
Disconnect power to the
machine when performing any maintenance,
assembly or adjustments. Failure to do this
may result in serious
personal injury.
Wear safety glasses during the entire maintenance process. Failure
to comply may result in
serious personal injury.
Keep loose clothing
rolled up and out of the
way of machinery and
keep hair pulled back.
Always wear a dust
mask when changing
the dust collection bags
on the Model G9958.
Sawdust may cause
allergic reactions or respiratory problems.
!
-18- G9958 4 H.P. Dust Collector
The following pages contain general machine
data, parts diagrams/lists, troubleshooting guide
and Warranty/Return information for your Model
G9958.
If you need parts or help in assembling your
machine, or if you need operational information,
we encourage you to call our Service Department.
Our trained service technicians will be glad to help
you.
If you have comments dealing specifically with
this manual, please write to our Bellingham,
Washington location using the address in Section
3 Introduction.
We have included some important safety measures that are essential to this machine’s operation. While most safety measures are generally
universal, Grizzly reminds you that each workshop is different and safety rules should be considered as they apply to your specific situation.
We recommend you keep a copy of our current
catalog for complete information regarding
Grizzly's warranty and return policy. If you need
additional technical information relating to this
machine, or if you need general assistance or
replacement parts, please contact the Service
Department listed in Section 3 Introduction.
Additional information sources are necessary to
realize the full potential of this machine. Trade
journals, woodworking magazines, and your local
library are good places to start.
SECTION 8: CLOSURE
The Model G9958 was specifically designed
for dust collecting operation. DO NOT
MODIFY AND/OR USE THIS MACHINE FOR
ANY OTHER PURPOSE. Modifications or
improper use of this tool will void the warranty. If you are confused about any aspect
of this machine, DO NOT use it until all your
questions have been answered. Serious
personal injury may occur.
Like all power tools, there is danger associated with the Model G9958. Accidents are
frequently caused by lack of familiarity or
failure to pay attention. Use this tool with
respect and caution to lessen the possibility of operator injury. If normal safety precautions are overlooked or ignored, serious personal injury may occur.
Operating this equipment has the potential
for flying debris to cause eye injury. Always
wear safety glasses or goggles when operating equipment. Everyday glasses or reading glasses only have impact resistant lenses, they are not safety glasses. Be certain
the safety glasses you wear meet the appropriate standards of the American National
Standards Institute (ANSI).
G9958 4 H.P. Dust Collector -19-
Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901
MACHINE DATA
SHEET
Design Type ...................................................................................... Single-Stage, Upright
Overall Dimensions:
Height (With Bags Inflated) ....................................................................................102"
Width ........................................................................................................................69"
Depth ........................................................................................................................24"
Weight (Shipping) ..............................................................................................320 lbs.
Crate Size ........................................................................49
1
⁄2" L x 271⁄2 " W x 281⁄2 " H
Footprint ..........................................................................................................24" x 69"
Specifications:
Intake Hole Size Without Manifold..............................................................................9"
Intake Adapter Hole Size (4)..........................................................................4" Fittings
Bag Size (4) ................................................Top - 19
3
⁄8" x 47"....Bottom - 193⁄8" x 371⁄2"
Max Material Collection Capacity ............................................................26 Cubic Feet
Bag Material ......................................................Bottom-Fabric....Top-Fabric / 1 Micron
Impeller Size ............................................................................................................13"
Suction Capacity ........................................................................................3560 C.F.M.
Static Pressure (inches of water) ............................................................................16.8
Construction:
Base ................................................................................Pre-formed Steel on Casters
Radial Impeller ................................................................................13" Balanced Steel
Motor:
Type ............................................................................TEFC Capacitor-Start Induction
Horsepower ..........................................................................................................4 H.P.
Phase / Voltage ............................................................................Single Phase ⁄ 220 V
Amps ..........................................................................................................................32
Cycle / R.P.M.............................................................................60 Hertz ⁄ 3450 R.P.M.
Switch ........................................................Magnetic with Thermal Overload Protector
Bearings ..................................................................Sealed & Permanently Lubricated
Specifications, while deemed accurate, are not guaranteed.
GRIZZLY MODEL G9958 4 H.P. DUST COLLECTOR
34
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G9958 4 H.P. Dust Collector -21-
Ref# Part# Description
001 P9958001 CASTER
002 PB09 HEX BOLT
1
⁄4"-20 X 1⁄2"
003 P9958003 MIDDLE BASE
004 P9958004 SIDE BASE
005 P9958005 RIGHT SUPPORT
006 P9958006 LEFT SUPPORT
007 P9958007 HOUSING
008 PSB02M CAP SCREW M6 X 20
009 PB08 HEX BOLT
3
⁄8"-16 X 1"
010 P9958010 FLAT WASHER M6
011 P9958011 IMPELLER
012 P9958012 INLET COVER
013 P9958013 GASKET
014 P9958014 MOTOR
015 P9958015 KEY 8 X 8 X 50
016 PB07 HEX BOLT
1
⁄4"-20 X 3⁄4"
017 P9958017 SWITCH
018 P9958018 HEX BOLT
3
⁄16"-24 X 3⁄4"
019 P9958019 FLAT WASHER
3
⁄16"
020 P9958020 HEX NUT
3
⁄16"
021 P9958021 WIRE PROTECTOR
022 P9958022 POWER CORD
023 P9958023 MOTOR CORD
Ref# Part# Description
024 PW07 FLAT WASHER
5
⁄16"
025 PB03 HEX BOLT
5
⁄16"-18 X 1"
026 PN02 HEX NUT
5
⁄16"
027 P9958027 GASKET
028 P9958028 COLLECTOR DRUM
029 P9958029 UPPER DUST BAG
030 P9958030 LOWER DUST BAG
031 P9958031 SWITCH PLATE
032 P9958032 BAND CLAMP
033 P9958033 UPPER BAG HANGER
034 P9958034 LOWER BAG HANGER
035 P9958035 INLET HOLE MANIFOLD
036 P9958036 PHILLIPS
®
HEAD SCREW
037 PB19 HEX BOLT
1
⁄4"-20 X 1⁄2"
038 PB03 HEX BOLT
1
⁄4"-20 X 1"
039 PAW05M ALLEN
®
WRENCH
040 PWR1012 COMBO WRENCH 10 X 12MM
041 PW06 FLAT WASHER
1
⁄4"
042 PN05 HEX NUT
1
⁄4"
043 P9958043 WARNING/MACHINE ID
044 P9958044 SAFETY GLASSES LABEL
045 P9958045 READ MANUAL LABEL
046 P9958046 SWITCH LABEL
047 G8589047 LARGE CAST LOGO
-22- G9958 4 H.P. Dust Collector
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from
the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse,
negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty
and any and all warranties that may be implied by law, including any merchantability or fitness, for any particular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent
that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants.
In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and
any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special, or consequential damages arising from the use of our products.
To take advantage of this warranty, contact us by mail or phone and give us all the details. We will then
issue you a “Return Number,” which must be clearly posted on the outside as well as the inside of the carton. We will not accept any item back without this number. Proof of purchase must accompany the merchandise.
The manufacturers reserve the right to change specifications at any time because they constantly strive to
achieve better quality equipment. We make every effort to ensure that our products meet high quality and
durability standards and we hope you never need to use this warranty.
Please feel free to write or call us if you have any questions about the machine or the manual.
Thank you again for your business and continued support. We hope to serve you again soon.
WARRANTY AND RETURNS
10. Which benchtop tools do you own? Check all that apply.
___1" x 42" Belt Sander ___6" - 8" Grinder
___5" - 8" Drill Press ___Mini Lathe
___8" Table Saw ___10" - 12" Thickness Planer
___8" - 10" Bandsaw ___Scroll Saw
___Disc/Belt Sander ___Spindle/Belt Sander
___Mini Jointer
___Other__________________________________________________
11. How many of the machines checked above are Grizzly? ____________
12. Which portable/hand held power tools do you own? Check all that apply.
___Belt Sander ___Orbital Sander
___Biscuit Joiner ___Palm Sander
___Circular Saw ___Portable Planer
___Detail Sander ___Saber Saw
___Drill/Driver ___Reciprocating Saw
___Miter Saw ___Router
___Other__________________________________________________
13. What machines/supplies would you like Grizzly Industrial to carry?
__________________________________________________________
__________________________________________________________
14. What new accessories would you like Grizzly Industrial to carry?
__________________________________________________________
__________________________________________________________
15. What other companies do you purchase your tools and supplies from?
__________________________________________________________
__________________________________________________________
16. Do you think your purchase represents good value?
___Yes ___No
17. Would you recommend Grizzly Industrial to a friend?
___Yes ___No
18. Would you allow us to use your name as a reference for Grizzly customers
in your area? Note: We never use names more than three times.
___Yes ___No
19. Comments:_________________________________________________
__________________________________________________________
__________________________________________________________
__________________________________________________________
__________________________________________________________
1. How did you learn about us?
___Advertisement ___Friend
___Catalog ___Card Deck
___World Wide Web
___Other__________________________________________________
2. Which of the following magazines do you subscribe to.
___American Woodworker ___Practical Homeowner
___Cabinetmaker ___Shop Notes
___Family Handyman ___Today’s Homeowner
___Fine Homebuilding ___WOOD
___Fine Woodworking ___Wooden Boat
___Home Handyman ___Woodshop News
___Journal of Light Construction ___Woodsmith
___Old House Journal ___Woodwork
___Popular Mechanics ___Woodworker
___Popular Science ___Woodworker’s Journal
___Popular Woodworking ___Workbench
___Other__________________________________________________
3. Which of the following woodworking/remodeling shows do you watch?
___Backyard America ___The New Yankee Workshop
___Home Time ___This Old House
___The American Woodworker ___Woodwright’s Shop
___Other__________________________________________________
4. What is your annual household income?
___$20,000-$29,999 ___$60,000-$69,999
___$30,000-$39,999 ___$70,000-$79,999
___$40,000-$49,999 ___$80,000-$89,999
___$50,000-$59,999 ___$90,000 +
5. What is your age group?
___20-29 ___50-59
___30-39 ___60-69
___40-49 ___70 +
6. How long have you been a woodworker?
___0 - 2 Years ___8 - 20 Years
___2 - 8 Years ___20+ Years
7. How would you rank your woodworking skills?
___Simple ___Advanced
___Intermediate ___Master Craftsman
8. What stationary woodworking tools do you own? Check all that apply.
___Air Compressor ___Panel Saw
___Band Saw ___Planer
___Drill Press ___Power Feeder
___Drum Sander ___Radial Arm Saw
___Dust Collector ___Shaper
___Horizontal Boring Machine ___Spindle Sander
___Jointer ___Table Saw
___Lathe ___Vacuum Veneer Press
___Mortiser ___Wide Belt Sander
___Other__________________________________________________
9. How many of your woodworking machines are Grizzly? _____________
Name ____________________________________________________________________________________
Street ____________________________________________________________________________________
City ______________________________________________________________State________Zip_________
Phone Number_______________________E-Mail_______________________FAX________________________
MODEL # G9958 4 H.P. Dust Collector Order #______________________________________________
The following information is given on a voluntary basis. It will be used for marketing purposes to help us develop better products and services. Of
course, all information is strictly confidential.
WARRANTY CARD
FOLD ALONG DOTTED LINE
FOLD ALONG DOTTED LINE
GRIZZLY INDUSTRIAL, INC.
P.O. BOX 2069
BELLINGHAM, WA 98227-2069
Place
Stamp
Here
TAPE ALONG EDGES--PLEASE DO NOT STAPLE
Name_______________________________
Street_______________________________
City______________State______Zip______
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