Pacific Rhino PFS 8 System manual

Rhino PFS 8
8” Drum Sander
(Clamp Bar Drum)
OWNERS MANUAL & OPERATING INSTRUCTIONS
MAY 2010 REF. 179 PART # R000511
From Serial Number
05400 (110 Volt)
PACIFIC
PAC IFIC

NORTH AMERICAN SAFETY INSTRUCTIONS
USE AND APPLICATION
WARNING: This floor sanding machine must be grounded.
This floor sanding machine shall be grounded while in use to protect the operator from electric
shock. The machine is provided with a three-conductor cord and a three-contact grounding type
attachment plug to fit the proper grounding type receptacle. The Green (or Green and Yellow)
conductor in the cord is the grounding wire. Never connect this wire to other than the grounding
pin of the attachment plug.
This floor sanding machine is provided with an attachment plug as shown in sketch A. It is
intended for use on a nominal 120 volt circuit. If a properly grounded receptacle as shown in
sketch A is not available, an adaptor as shown in sketch 'C' should be installed as shown in sketch
B if the outlet box that houses the receptacle is grounded. Be sure to fasten the grounding tab with
a metal faceplate screw.
Floor sanding can result in an explosive mixture of fine dust and air. Use floor-sanding machine
only in a well-ventilated area free from any flame, match or source of ignition.
Moving Parts - to reduce the risk of injury, unplug the machine before replacing abrasive sheets
or carrying out any form of adjustment or servicing.
WARNING:
WARNING:
Risk of explosion.
Risk of potential injury.
This machine is intended for commercial use connected with the laying and maintaining of wooden floors and
decks.
These types of surfaces may be found both in commercial and household environments.
ATTACHMENT PLUG SKETCH ‘C’
METAL
SCREW
COVER OF GROUNDED
OUTLET BOX SKETCH ‘B’
ADAPTER
GROUNDING
MEANS
COVER OF GROUNDED
OUTLET BOX SKETCH ‘A’
GROUNDING PIN
Manufactured in UK © Hiretech

CONTENTS
WARNING
MAINS CABLE WIRING - PLUG
SPARE PARTS
SPECIFICATION
SAFETY
SET UP
PREPARATION
OPERATION
FLOOR SANDING TECHNIQUE
FLOOR TYPES
i
i
i
1
1
Assembly and Transport 2
Installing Abrasive Disc 2
2
3
Drum Floor Sander 4
Edger Sander 4
Hand Sanding 4
Sanding Plank & Strip Floors 4
Parquet & Block Floors 4
6
General 7
Visual Inspection 7
Drive Belts 7
Dust Control System 7
Lubrication 7
Care of Motor 7,8
Electrical Testing 9, 10
Sanding Drum 10
11
12,13
16
FLOOR SANDER ABRASIVE GUIDE
SERVICE AND ROUTINE MAINTENANCE
TROUBLE SHOOTING
Rhino PFS 8 PARTS DRAWING
FITTING A REPLACEMENT SWITCH
Rhino PFS 8 PARTS LIST
Rhino PFS 8 CIRCUIT DIAGRAM
SERVICE & REPAIR
14, 15
16
17
WARNING
MAINS CABLE WIRING - PLUG
For safe operation of this machine, read and understand all instructions. Look for the ‘warning/caution’ symbol.
This symbol means that if you do not follow the instructions injury can occur to the operator and
damage to the machine and floor may result.
NORTH AMERICA
BLACK
WHITE
GREEN
BRASS
TERMINAL
SILVER
TERMINAL
SPARE PARTS
Use Pacific Floor Care genuine spare parts only for service and repair. Use of non-approved parts will void the product
warranty. See the back cover of this manual for the terms and conditions of the Pacific Floor Care Limited Warranty.
i
Pacific Floor Care reserves the right to make changes or improvements to it's products without prior notice.

SPECIFICATION
The Pacific Rhino PFS 8 Drum Sander will sand hard
and soft wood floors, cork and composition floors
that require rapid sanding and leveling to a fine
finish. A powerful motor drives a finely balanced
sanding drum which is covered in a unique drum
rubber providing a high quality finish to both hard
and soft woods and other surfaces. Completely self
contained with a high efficiency dust pickup the
machine breaks down into three simple component
parts for easy transport. With low voltage trip and
overload protection the Rhino PFS 8 is a high
performance sander suitable for professional and
home owner use.
SAFETY
1. For safety it is recommended that a residual
current circuit breaker (ground fault interrupter)
is used with this machine.
2. Check the operating voltage is correct and that
the machine is switched OFF (‘O’) before
connecting to the power supply.
3. Always disconnect from the power supply when
changing the abrasive paper, servicing the floor
sander, replacing the dust bag or leaving the
machine unattended.
4. Always replace the dust bag (paper type) or
empty the dust bag (cloth type) when the dust in
the bag reaches the ‘MAX’ line or when the
machine is left unattended.
5. Never dispose of or empty the contents of the
dust bag into a fire or incinerator.
6. Never reuse the paper dust bag or use a non
standard bag. Cloth bags must be in good
condition with no holes.
7. Always wear a dust mask when using the floor
sander, handling the dust bag or cleaning the
machine after use.
8. Wear ear protection when using the floor sander.
9. Ensure adequate ventilation of the work area to
avoid the formation of a combustible mixture of
flying dust and air.
10. Never smoke when using or servicing the floor
sander or when handling the dust bag.
11. Never expose the machine to rain or damp.
Always store in a dry place.
12. Stop the floor sander immediately if damage to
the machine or abrasive paper is suspected.
13. Never allow the power cable to come into contact
with the sanding drum when the floor sander is in
operation. If the power cable becomes damaged
and the inner conductors are exposed switch the
power OFF and remove the plug before
attempting to move the machine. The cable
must be replaced by an authorized dealer or
qualified electrician using Pacific Floor Care
genuine spare parts only.
14. Keep hands, feet and loose clothing away from
all moving parts of the machine.
15. Punch down or remove all nails, screws, tacks
and other fixings from the floor before sanding to
prevent contact with the sanding drum.
16. Never operate the machine without all the
guards in place.
17. Keep children and pets clear at all times.
18. If the machine should fail to operate refer to the
Trouble Shooting Guide on page 10.
1
Read the following Safety and Operational
notes before using your Pacific Rhino PFS 8
Drum Sander.
Noise: 95 dBa at 1metre (3’ 3")
Vibration: 1.60 m/s² r.m.s.
Switch: Low voltage trip and overload
protection.
Motor RPM: 8,500
Drum RPM: 3,300
Drive: Non-slip toothed timing belts and
gear cut pulleys.
Dust Pickup: Seated oversize vacuum fan with
adjustable dust pan, disposable
paper dust or cloth bag.
Moving Parts: Sealed for life ball bearings.
Guards: High impact injection moulded
ABS.
Abrasive: 495mm (19.5") total length x
203mm (8") wide sheet with
notched and angled ends 24 to
120 grit.
Power Cable: 7m (23') Non-marking outer
insulation.
Weight Net: 41.5kg (91.5lbs)
Shipping
Weight:
50.0kg (110.3lbs)
Shipping
Dimensions:
78 x 40 x 44cm
(30.75" x 15.75" x 17.5")
Warranty: 2years
110/120 V 50/60 Hz
220/240 V 50/60 Hz
110/120 V 8A
220/250 V 5A
Average
Load Current:
110/120 V 15A
220/250 V 8A
Power Supply:
Off Load
Current:
Continuous heavy duty AC/DC self
cooling 4 brush.
8" (203mm) wide aluminium
extrusion with moulded rubber
drum cover.
Sanding Drum:
Motor:

SET UP
Assembly and Transport
Installing Abrasive Paper
1. The breaks
down into three component parts, the main
body, handle assembly and dust tube for easy
handling and transport. To assemble loosen the
Clamp Bracket Ref.21 and slide the handle
assembly into the Handle Bracket Ref.51. Adjust
the height of the handle so that your arms are
slightly bent when standing upright behind the
machine. This will provide you with maximum
control in operation. Tighten the clamp bracket
firmly. Always ensure that the clamp bracket is
tight, check periodically during use.
2. Connect the Cable Handle Ref.20 to the Body
Twist Lock Ref.24 at the rear right hand side of the
floor sander body. Align the plug with the pins,
push in and twist clockwise to lock.
3. Slide the Exhaust Tube Ref.59 into the Exhaust
Bracket Ref.56 and push fully home.
4. Fit a paper dust bag following the instructions
printed on the bag. If a cloth bag is used ensure
that it is tied securely around the dust tube neck
and that the bag is in good condition with no
holes.
5. To prepare the floor sander for use place the
machine on the floor and remove the main cable
from it's storage position on the handle
assembly. Check that the cable is in good
condition and that all fittings are secure.
6. To dismantle the floor sander reverse procedure
1 to 5 above.
7. Always ensure that the floor sander is secure and
cannot move when being transported in a
vehicle. The floor sander is heavy. Take care
when lifting and carrying the machine.
1. Ensure the power cable is disconnected from the
power supply.
2. Tip the floor sander back so that it rests on the
handle.
3. Lift the Drum Guard Ref.35 and turn the Drum
Ref.168 to expose the Paper Clamp Bar Ref.175.
Take care not to trap your fingers when turning
the drum.
4. Loosen the 2 Paper Clamp Screws Ref.174 with a
coin or suitable screw driver so that the clamp
bar raises about 1/2“ only. DO NOT remove the
screws completely.
5. Select a suitable grade of abrasive paper (see
Abrasive Paper Guide on page 5). To help install
course grit abrasive papers draw the smooth side
Pacific Rhino PFS 8 Drum Sander
(back) of the paper over the edge of a work
bench to make it curl .
6. Kneeling in front of the machine place one end of
the abrasive paper under the clamp bar so that
the notches align with the clamp bar screws and
clamp bar.
Carefully holding the abrasive paper in place
rotate the drum 1 revolution. Tuck the other end
of the abrasive paper under the clamp bar and
use both hands to squeeze the sheet tight around
the drum. Make sure it is square to the edges of
the drum with no overlap and both ends of the
abrasive sheet are equal distance under the
paper clamp bar.
Firmly tighten the two clamp bar screws. Check
the abrasive sheet is skin tight around the drum.
If in doubt repeat the above procedure. Loose or
damaged abrasive sheets will tear during
sanding and can be expensive to keep replacing.
Damage may also occur to the floor and floor
sander.
7. Lower the drum guard and stand the machine
up. The floor sander is now ready for use.
Note: Use Pacific Floor Care genuine floor sander
abrasives for the best sanding performance and
finish. They will also reduce the risk of tearing due to
poor fit which is a common problem with generic and
non standard abrasives.
1. Where possible remove all furniture from the
area or room. The
features an efficient dust pickup,
however, some dust will escape.
2. Remove all tacks, staples and other unwanted
fixings from the floor. Failure to do so will result
in damage to the abrasive paper and sanding
drum.
3. Punch all nails below the surface of the floor
using a suitable nail punch and hammer. Any
screws used to fix boards should be counter sunk
below the surface. During sanding any nails or
screws that become exposed must be punched or
counter sunk further.
4. Firmly fix all loose boards or blocks.
5. Remove heavy wax, grease and dirt deposits by
hand.
6. Sweep and vacuum the floor thoroughly to
remove dirt and discarded fixings.
7. Ensure good ventilation by opening windows.
Pacific RhinoPFS 8 Drum
Sander
PREPARATION
2

OPERATION
1. Move the floor sander to the location of your
work.
2. Connect the power cable to a suitable power
supply ideally located behind or to one side of
the machine and work area.
3. Wear a dust mask and ear protection.
4. Hold both handles with the main cable held in a
small loop in the left hand and then passed over
the left shoulder.
5. Apply light downwards pressure on the handles
to tip the floor sander back to raise the sanding
drum off the floor. Switch on by pushing the
ON/OFF switch to the ‘I’ position.
6. Now move the floor sander slowly forward and
at the same time release the pressure on the
handles to gently lower it so that the sanding
drum comes into contact with the floor.
7. Guide the floor sander in a straight line at a slow
walking pace. Do not force or hold the floor
sander back. Allow the machine to do the work
and always move at an even pace.
8. At the end of the pass while still moving forward
tilt the floor sander back so that the sanding
drum comes clear of the floor. Now moving
backwards lower the floor sander again and pull
it backwards over the area just sanded moving at
a steadily even pace. Take care to ensure that
the power cable is kept clear of the sanding drum
at all times. At the end of the sanding pass and
while still moving backwards tilt the floor sander
back so once again the sanding drum comes
clear of the floor.
Move the machine over so that it overlaps the
area just sanded by 3" and start to sand the next
pass repeating the above technique.
i. Always ensure that the floor sander is
moving when in operation and the
sanding drum is in contact with the floor.
ii. Never lift the back of the machine when
sanding.
CAUTION - the Pacific Rhino PFS 8 Drum
Sander is a powerful machine. Always
ensure that you have a firm grip before
switching on.
CAUTION - to prevent damage to the
floor surface, work piece or machine
follow these rules.
3
iii. Never apply pressure to try to increase the
rate of sanding. Damage to the floor and
machine will occur.
iv. Never bounce or drop the floor sander on
to the floor. Always lower the machine
gently.
v. Never dwell in one place, move steadily at
all times.
vi. Never allow the power cable to come into
contact with the sanding drum.
9.
10. Fit a new paper dust bag or refit the cloth bag.
Reconnect the floor sander to the power supply
and continue sanding.
11. When taking a break from work disconnect the
power cable from the supply, remove and
dispose of the paper dust bag, or empty the cloth
bag as detailed in 9. above. Never leave the
floor sander unattended with the dust bag in
place containing dust.
12. On completion disconnect the power cable from
the supply. Remove and dispose of the paper
dust bag, or empty the cloth bag as detailed in 9.
above. Stow the cable on the handle assembly
and if required dismantle for transportation.
Carry out maintenance as recommended in
Maintenance and Servicing.
When the dust in the dust bag reaches the ‘MAX’
line stop sanding. Disconnect the power cable
from the power supply and remove the paper
dust bag. Turn the top of the paper dust bag over
to stop the escape of dust and dispose of into a
suitable container. Dampen the dust bag down
with water to reduce the risk of fire. Never reuse
the paper dust bag or empty it or dispose of it into
a fire. If a cloth bag is used empty into a suitable
container being careful to contain the dust. Do
not dispose of the contents into a fire.
DANGER - never leave the floor sander
unattended with dust in the dust bag.
Always remove the dust bag and dispose
of into a suitable container.

FLOOR SANDING TECHNIQUE
Pacific Rhino PFS 8 Drum Sander
Pacific Wolverine Edger Sander
Hand Sanding
- a powerful floor
sander designed for the rapid leveling and sanding of
all types of wood flooring excluding thin laminated or
veneered floors. Load the sander with abrasive
making sure that it is skin tight around the drum.
Loose sheets will tear. Place the sander on the right
hand wall (unless you are making an angled cut on
uneven floors) with about two thirds of the floor in
front of you. Start the sander with the drum off the
floor then walk forward at an even pace and ease the
drum on to the floor. As you near the end of the pass,
gradually raise the drum off the floor. Practice this
technique before turning on the sander.
Cover the same path you made on the forward cut by
pulling the machine backwards and easing the drum
to the floor as you begin the backward pass until you
reach the original starting point, then ease the drum
off the floor.
When two thirds of the floor is sanded, turn the floor
sander around and sand the remaining third in the
same way. Overlap the one third area by 2 to 3 feet
with the two thirds area to blend the two areas
together.
- a powerful edger
sander designed for sanding along the edges of a
floor without damaging the baseboards or moldings.
Also suitable for smaller areas where the Pacific Rhino
PFS 8 Drum Sander will not reach like stair treads and
closets. Load the abrasive disc making sure the
retaining bolt is tight. Start the edger with the disc off
the floor then lower the disc to the floor as you move
the sander. Work progressively moving the sander in
a sweeping motion from side to side.
- to sand difficult to reach areas
scrape and sand the floor by hand. Use a scraper to
remove old finishes, always scraping in the direction
of the grain, and then sand by hand using the same
grit abrasive as you finished with when machine
sanding. See Floor Sanding Technique diagrams on
page 5.
WARNING - never bounce the sanding
drum or dwell in one place as this will
sand dips and hollows in the floor.
FLOOR TYPES
PLANK & STRIP FLOORS
PARQUET & BLOCK FLOORS
Old floors in good condition
Uneven floors
Floors with an existing finish
- when the floor is in
good condition - no uneven edges, cupping or
crowning of planks and strips - and you want to re-
surface the floor, sanding back to new wood, start
sanding in the direction of the planks or strips - with
the wood grain. Start with a grit abrasive.
Complete the first cut with the Pacific Rhino PFS 8
Drum Sander then sand up to the baseboards and
door thresholds with the Pacific Wolverine Edger,
using a grit abrasive, blending the edges in
with the main floor area. Sweep the floor. Using a
grit abrasive, sand the main floor area
with the drum sander and then complete the floor with
the edger using a grit abrasive. Sweep the floor.
Finish sanding the main floor area with the drum floor
sander using a grit abrasive.
- when the floor is uneven sand
diagonally at 45 across the room in both directions
using the Pacific Rhino PFS 8 Drum Sander with a
coarse grit abrasive. Only make one cut on both
diagonals, this will achieve a basic level. Now
complete the floor as for a level strip or plank floor.
Use the same grit abrasive as was used on the 45 cut
for the first cut parallel to the planks or strips.
- when re-finishing a
floor remove as little of the existing surface as
possible. If the floor is badly marked and scratched
and has to be sanded back to new wood use the
Pacific Rhino PFS 8 Drum Sander and Pacific
Wolverine Edger Sander. Always try a medium grit
paper first, particularly on a diagonal cut. If 90% of
the old finish is removed and the floor is generally
leveled, you do not need to use a coarse grit abrasive.
The grain of the wood will run in a number of
directions so sand the floor in the direction of the
main source of natural light in the room. If there is no
source of natural light sand in the direction of the
longest side of the room or, if the room is square, in
the direction the furniture is laid out and how people
normally use and view the room.
This technique will help mask any imperfections in the
floor. Complete the sanding operation as detailed
for plank or strip floors.
medium
medium
fine
fine
medium/fine
o
o
4

5
FLOOR SANDING TECHNIQUE
unsanded boards sanded boards
level very uneven
floors by sanding
diagonally in both
directions
unsanded boards
unsanded boards
Level uneven floors.
Sand main floor area.
Sand and blend edges in with main floor area.
Plank and Strip Floors
Parquet and Wood Block Floor
- sand in the
direction the boards are laid, with the
wood grain.
-
sand in the direction of the main
source of natural light. If there is no
natural source of light, sand in the
direction of the longest side of the
room. If the room is square, sand in
the direction the furniture is laid out
and how people normally use the
room.
s

6
FLOOR SANDER ABRASIVE GUIDE
DO NOT OVER-SAND USE ONLY AS HEAVY GRADE ABRASIVE AS IT TAKES TO DO THE
JOB. PROGRESS FROM FIRST GRADE USED THROUGH FOLLOWING GRADES TO
REMOVE ALL VISIBLE SANDING MARKS. DO NOT MISS A GRADE.
Abrasive Grade Floor Type and Condition
Grit P24 Open Coat
(Very Coarse non-glogging)
For removing surface coatings from old floors such as varnish, stains and wax
polishes. For the rapid sanding and removal of scratches and marks. Sanding
level the joints of sub-flooring like particle board and masonite.
Grit P24
(Very Coarse)
For the rapid sanding and removal of scratches and marks. Sanding level the
joints of sub-flooring like particle board and masonite.
Grit P36 to P50
(Coarse/Medium)
For removing surface coatings from old floors such as varnish, stains and wax
polishes. For the rapid sanding and removal of scratches and light marks.
Sanding level the joints of sub-flooring like particle board and masonite.
Grit P60 to P80
(Medium)
For the rapid sanding and removal of scratches and light marks. Sanding level
the joints of sub-flooring like particle board and masonite.
Grit P100 to P120
(Medium/Fine)
Intermediate sanding of all types of wood floor. For final sanding of all types of
wood floor.
Grit P150 - P180
(Fine/Very Fine)
For final sanding of all types of wood floor. First sanding of cork or composition
floors. For sanding between coats of solvent based and 2 pack varnishes.

SERVICE & ROUTINE MAINTENANCE
CAUTION - maintenance and repairs
must be carried out by authorized
personnel only. To prevent injury, always
remove the power cable from the power
supply before undertaking any work on
the machine. Do not operate the floor
sander unless it is fully assembled and all
guards are in place. Use Pacific Floor
Care genuine spare parts only.
General
Visual Inspection
1. Always make a list when first examining the
machine, to remind you of parts or action
needed on completion of repair/service.
2. The is subject to
high speeds. All screws should be fitted using a
suitable thread lock compound.
3. On completion of any work or service on an
electrical tool or appliance statutory safety tests
must be carried out by a competent person and
recorded (see Testing for Electrical Safety page
8).
4. The needs no
lubrication during routine servicing.
5. Always ensure that the electrical supply is
disconnected before starting any routine
servicing or repair.
1. Check that the drum guard Ref.35 is in good
condition and functioning correctly. Ensure that
the Warning Label Ref.36 is present and legible.
2. Check all other guards and mechanical parts are
in good condition.
3. Examine the power cable Ref.39 and the handle
cable Ref.20. If the outer insulation shows the
slightest of abrasions or the inner conductors are
exposed, then the cable must be replaced. The
cable must not be repaired with tape or
insulation sleeve
4. Examine both the mains plug and the
interconnecting socket, Body Twist Lock Ref.24.
The plugs must be opened and examined (see
Electrical Testing page 8).
5. If a cloth type bag is in service check the
condition, old clogged cloth dust bags make for
an inefficient dust pickup.
6. Ensure that all labels are present and in good
condition.
Pacific Rhino PFS 8 Drum Sander
Pacific Rhino PFS 8 Drum Sander
Drive Belts
Dust Control System
Lubrication
Care of Motor
1. To examine the condition of the Drive Belts
Ref.164 and Ref.165 remove the four screws
Ref.83 and the Belt Guard Ref.81.
2. Lift the Fan Belt Ref.165 while rotating the pulley
remove the fan belt. Repeat for the Drum Belt
Ref.164.
3. Examine the pulleys for wear, worn or damaged
pulleys should be replaced
4. To reduce the instance of belt breakage, examine
the drive belts, look for cracks or fraying and
replace if necessary with new belts. To replace
reverse the above procedure taking care to avoid
bending the belts tighter than the pulley diameter
as this can result in damaged belts. Refit the belt
guard.
1. For efficient dust pick up ensure that cloth type
dust bags are clean and unclogged and that the
intake is clear and properly adjusted.
2. Turn the machine on to its side and loosen the
three Screws Ref.71 and remove the Dust Shoe
Ref.72 and clear any obstruction. The grit from
the abrasive paper can wear away the leading
edge of the dust shoe, if this has occurred then
file or grind the leading edge level before
refitting.
Install the dust shoe ensuring that the clearance
between the shoe and the drum is maintained at
3/8“ (10mm).
1. The is
completely lubricated. The bearings are sealed
and do not require lubrication. In the unlikely
event that a bearing requires replacement use a
genuine spare part only as the
grease contained in these bearings is special. A
standard bearing is not suitable and may result
in further damage.
1. The motor must be kept free from grease and
dust.
2. The motor brushes must be checked regularly,
inspect the brushes every three months or every
500 hours of use, whichever comes first.
3. Replace ALL FOUR motor brushes when any one
brush has worn to 1/2” or less in length. Brushes
CAUTION - take care to avoid trapping
your fingers when removing or replacing
the drive belts.
Pacific Rhino PFS 8 Drum Sander
Pacific Floor Care
7

MUST slide freely in the brush holders.
4. To inspect and replace motor Brushes Ref.104,
with the brush block assembly removed.
i. Remove the three Screws Ref.82 and
remove the Wall End Guard Ref.84 to
expose the motor brush assembly.
ii. Remove the four retaining Screws Ref.31
from the Shield Wall End Ref.30, insert two
of the screws into the ‘jacking holes’
situated adjacent to the countersunk
retaining holes.
iii. Carefully tighten these screws until the
shield wall end is jacked clear of the outer
casting. Withdraw the shield-wall end.
iv. With the brush block assembly complete
and the connecting leads still attached.
You will note that as the brush block
assembly is withdrawn the brushes spring
towards the center and often the brush
springs fall clear as the brushes are no
longer at the height to retain them. Take
care not to lose any springs.
v. To remove a brush spring with a brush in
the operating position push the brush
spring down and towards the brush and lift
out.
vi. Using a cross recess screwdriver remove
the four brush shunt (pigtail) retaining
Screws Ref.105 and lock Washers Ref.100.
vii. Remove the four brushes. Remove the two
‘jacking’ screws.
viii. Thoroughly clean the brush assembly and
housing using a soft brush and a suitable
vacuum cleaner.
ix. Inspect the four brushes for damage or
wear and if any one brush is found to be
damaged or worn to a length of 1/2” or
less in length then replace all four brushes.
x. When replacing brushes ensure free
movement in each brush holder and fit the
brush with the shunt (pigtail) towards the
field coil. Ensure that each brush shunt is
connected securely with the screw, and
lock washer, two spare screws and lock
washers are provided with each pack of
brushes. Do not fit the brush springs at this
stage.
xi. Pull each brush up to the top of the holder
using the shunt wire to retain it in this
position for the next stage.
xii. Enter the assembly into the main frame
taking care to avoid contact between the
brushes and the commutator of the
armature, that the shield wall end is
correctly aligned with the main frame and
that no leads are trapped. There is a
depressed pattern on the shield wall end
and on the main frame to assist alignment.
Both the bearing fit and the main frame fit
are ‘light contact’ and may require lightly
tapping into position using a soft mallet.
DO NOT FORCE.
xiii. Replace and tighten the four countersunk
Screws Ref.31.
xiv. Remove the four brush block retaining
Screws Ref.31 and the single timing Screw
Ref.34 from the Shield-Wall End Ref.30.
The brush block assembly is now free to
rotate. To fit the brush springs rotate the
brush block assembly counter clockwise
(over towards the rear of the machine) until
the lower brush holder is accessible, fit the
brush spring by inserting into the holder
with the coil spring over the brush then
push down until the tag comes into contact
with the holder, slide the tag away from the
brush and release. The brush spring will
clip into position. Check the spring and
brush for correct alignment and free
movement.
xv. Rotate the brush block assembly clockwise
and repeat to fit the remaining three
springs. The switch and field cables
restrict the movement of the brush block
assembly, take care not to loosen or
damage these cables.
xvi. Return the brush block assembly to its
original position and align the timing
notch in the block with the timing hole,
screw the timing Screw Ref.34 into
position.
xvii. Secure the brush block assembly using the
remaining four screws Ref.34. DO NOT
OVER TIGHTEN.
xviii. Finally check that all cables are well clear
of moving parts before refitting the guard
wall and securing with the 3 Screws
Ref.82..
Note: To inspect and replace the motor brushes while
retaining the brush block assembly in place repeat
the procedure xiv. to xviii. above.
8

Electrical Testing
CAUTION - testing for electrical safety
should be undertaken by a competent
person and all results recorded. Do not
exceed 1250 volt insulation test duration
of 3 seconds.
1. Examine the power cable and handle cable for
damage, if the outer insulation shows more than
the slightest of abrasions or the inner conductors
are exposed then the cable must be replaced.
The cables must not be repaired with tape or
insulation sleeve.
2. Open and check mains plug and interconnecting
socket Ref.24 for condition, loose connections,
damaged wires etc. Ensure that the strain relief
of the power cable plug is correctly secured to the
outer cable insulation.
3. Open and examine the Switch Housing Ref.11
for loose connections, damaged wires, and
general condition. Pay special attention to any
gaskets, 'O' rings and seals intended to exclude
dust from the switch and switch housing area,
these must be maintained in good condition.
4. Ensure that the Strain Relief Ref.5 is correctly
secured to the outer cable insulation.
Note: The features
a fully protected circuit breaker which incorporates
'Low Volt Protection'. This means that should the
mains supply be interrupted during use the switch will
Pacific Rhino PFS 8 Drum Sander
immediately return to the 'OFF' position to protect the
operator. This feature, by preventing a circuit through
the switch unless mains voltage is present, also
prevents a full insulation (flash) test unless the test
instrument has ' ' facility.
If your instrument has this facility then:- replace the
switch cover 'A' taking care to avoid trapping leads
and ensuring that all dust gaskets are correctly
positioned. Check that the circuit breaker 'ON'
button does not lock in the 'ON' position when
depressed. The button must only lock 'ON' when
current is present. Before carrying out test ensure that
the motor is connected by the twist lock socket Ref. 24
and that all safety measures have been taken.
Carry out 'test on run' procedure.
If your instrument does not have 'test on run' facility
then Continue as follows:-
5. While you have the switch housing open for
visual inspection remove the circuit breaker
cover 'B' together with the 'low volt coil 'C'(see
below). Do not disconnect or disturb any cables.
The 'low volt coils will remain within the cover 'B'.
The circuit breaker will now lock into the 'ON'
position without current present. Before carrying
out an insulation (flash) test ensure that the motor
is connected by the twist lock socket Ref. 24 and
that all safety measures have been taken.
test on run
9
Rhino PFS 8 Low Voltage Switch.
CE0UAC690VCSNEN60947
START
STOP
6
4
2
????-??A
TEST
AC 3
SM1-10
5
OEZ
3
1
Cover 'B'
Low Volt Coil 'C'
stays within cover
Gasket
Cover 'A'
Dust Membrane

6.
7. Record the test results.
8. Complete a functional (run) test and record
results.
9. After carrying out the tests disconnect the
machine from the test station and snap the 'Low
Volt Coil' 'C' back into position and replace cover
'B'.
10. Replace the switch cover 'A' taking care to avoid
trapping leads and ensuring that all dust gaskets
are correctly positioned. Check that the circuit
breaker 'ON' button does not lock in the 'ON'
position when depressed. The button must only
lock 'ON' when current is present.
11. Finally test the machine once again to ensure
good earth and insulation of the mains cable
and switch. Do not exceed 1250 volt flash
duration of 3 seconds.
1. Check that power supply is disconnected. Tilt the
machine back and rest the handle on the floor.
Open the drum guard and examine the drum
cover. A damaged or worn cover must be
replaced to maintain machine performance. A
damaged or worn cover can result in poor
sanding with subsequent damage to the floor
surface and can be dangerous in operation. A
cover that is worn to 1/4“ or less in thickness
must be replaced.
2. To replace the drum cover see the detailed
instructions included in each genuine Pacific
Floor Care Drum Cover Kit Ref.167 Part #
R162312. The use of an impact screwdriver may
assist.
3. It is recommended that at each service interval
the drum cover is checked and trimmed
(dressed) if necessary to provide a true uniform
diameter.
4. First check that the condition of the rear castors.
These must be in good condition and free from
dust and dirt. Check that the casters rotate freely
and are not worn with any flat spots. Check that
the axle between the castors is not bent by using
a straight edge along its length.
Use the standard test for electrical safety for a
grounded (earthed) appliance. Do not exceed
1250 volt insulation test duration of 3 seconds
CAUTION - when undertaking a
functional test ensure that the machine is
secure, remember the sanding drum will
rotate, ensure that the drum cannot come
into contact with the work bench/service
area.
Sanding Drum.
10
5. Fit a sheet of fine grit abrasive paper (120 grit),
abrasive side up on to a level floor surface.
Remove any abrasive paper from the drum and
re-tighten the clamp bar screws. Make sure the
clamp bar screws are tight.
Position the floor sander over the abrasive paper
and connect the power cable to the power
supply. Tip the floor sander back to raise the
sanding drum off the floor and switch on.
Gently lower the floor sander so the sanding
drum 'just' touches the abrasive paper. Hold the
sander in position for a few seconds then tip back
and switch off.
Disconnect the power cable and tip the floor
sander back so that it rests on it's handle. Lift the
drum guard and check the condition of the drum
cover. If it is uniform an even surface will be
witnessed, if not, continue to dress the drum until
all high and low spots are removed. Take care
not to remove too much material as this will
reduce the life of the drum cover.
6. When a uniform surface is achieved it is
advisable to slightly ‘feather’ both edges of the
drum cover. Switch off and disconnect the power
cable from the power supply. Tilt the machine
back and lift the drum guard to expose the drum
cover. Using a medium to fine grit abrasive
paper carefully feather the edge of both sides of
the drum cover by holding the abrasive paper
against the edge and rotating the drum. Be
careful not to trap your fingers. The softer edge
provided will help prevent ‘cut’ lines witnessed
on the floor surface when sanding particularly in
softer woods. Always feather the edges of a new
drum cover.
WARNING - the sanding drum and drum
cover must be correctly adjusted and
maintained to ensure the best sanding
performance. Failure to do so can result
in damage to the floor surface and can
be dangerous.

11
TROUBLE SHOOTING
PROBLEM CAUSE ACTION
The machine does not run. The power cable is not Connect the power cable to the
connected to the power supply. power supply.
The overload protection has Allow to cool, switch on.
been activated.
The motor brushes are worn. Replace the motor brushes.
The voltage is too low. Check main power supply
complies with the machine
serial plate data.
The overload protection The drum motor is stopped. Contact an authorized repair
activates frequently. agent.
A bearing has failed. Contact an authorized repair
agent.
The voltage is too low. Check the main power supply
complies with the machine's
serial plate data.
The pressure on the Fit a finer grit abrasive paper,
sanding drum is too high. make sure the voltage is
correct.
The sanding drum will not Disconnect from the power and
rotate. check the sanding drum for
obstruction. If overload still
operates contact an authorized
repair agent.
The machine will not pick-up dust. The dust bag is full. Replace the dust bag.
The dust shoe is out of Adjust the dust shoe.
adjustment.
There is an obstruction in Remove the dust shoe and
dust pickup. check for obstruction.
Clear as necessary.
The fan belt has broken. Replace the fan belt.
The machine does not sand The drum cover is not round. Redress or replace the drum
evenly. cover.
The Floor Roller assembly Adjust the Floor Roller
(adjustable type) is out of a
The Floor Roller assembly is Repair/replace the Floor Roller
worn or damaged. Assembly.
The machine is not being Read ‘Operation’ section of
operated properly. this manual.
The sanding drum will not rotate. The drum belt is broken. Replace the drum belt.
The drum bearing has failed. Contact an authorized repair
agent.
The shear pin Ref.144 has Contact an authorized repair
operated. agent.
There is an obstruction. Disconnect from power supply
and clear the obstruction.
ssembly see page 11.4
adjustment.

12
RHINO PFS 8 PARTS DIAGRAM
39
7
11
10
14
19
15
16
26
21
17
17
18
45
20
59
55
24
51
52
53
50
96
53
56
67
60
65
66
64
63
61
62
83
81
75
2
78
86
73
72
36
35
28
80
79
29
84
82
77
86
74
58
54
23
9
1
23
4
49 46
22
12
6
5
8
127 85
48
47
25
200
57
201
{
Floor Sander

13
RHINO PFS 8 PARTS DIGRAM
SERVICE TOOL
PACIFIC
142
143 124
145
144
146
149
98
173
176
174
175
174
167
250
127
152 124
126
159
101
103
102
168
169
165
164
31
30
140
109
104 100
117
115
116 119
121 119
123
86 127
125
128
126
130
97
101
103
102
129
110
43
96 113
125
111 114
118
98
34
98
99
92 91
96 95
93
170
62 89 88
87 62
93 96
97 102
103
86
94
179
Rhino PFS 8
8” Drum Sander
OWNERS MANUAL & OPERATING INSTRUCTIONS
MAY2010 REF.179 PART# 000511
From Serial Number
00000 (110 Volt)
PACIFIC
PACIFIC

14
RHINO PFS 8 PARTS LIST
1 R962308 1 Screw
2 R980652 2 Washer
3 R162019 1 Clamp Handle
4 R163907 1 Handle Cross
5 R101205 1 Strain Relief
5 R163691 1 Strain Relief (NA)
6 R101206 1 Nut Lock
7 R163849 1 Dust Cover Kit
8 R163837 1 Bracket Switch Mounting
9 R163839 1 Switch 110/120V
10 R163870 1 Gasket Switch Housing
11 R163840 1 Cover Switch
12 R163838 2 Screw
14 R163871 4 Screw
15 R163844 1 Handle Assembly Complete 110 Volt (NA)
16 R169012 1 Tube Handle
17 R980615 2 Washer
18 R163804 1 Strain Relief Handle Cable (NA)
19 R164508 1 Hook Cable
20 R519510 1 Cable Handle (NA)
21 R960180 1 Clamp Handle Bracket
22 R960183 1 Bracket Handle Cross
23 R911045 1 Base Twist Lock
24 R911046 1 Body Twist Lock
25 R163867 1 Lead Earth Base Twist Lock
26 R163808 1 Grommet
28 R165103 1 Label 'Lift Here & At Rear' (Metal)
29 R163201 1 Main Frame
30 R167804 1 Shield Wall End
31 R962084 4 Screw
34 R962204 5 Screw
35 R163795 1 Guard Drum Assembly
36 R121252 1 Label Guard Drum
39 R519501 1 Cable Main Assembly 110 Volt (NA)
43 R010200 4 Washer
46 R024600 1 Buffer Rubber
47 R980197 1 Washer
48 R024605 1 Bolt
49 R030850 2 Nut
50 R167308 1 Ring Retaining
51 R160815 1 Bracket Handle
52 R980196 1 Washer
53 R962244 5 Bolt
54 R163796 1 Bag Dust Cloth
55 R163823 1 Retainer Dust Bag Disposable
55 R163826 6 Retainer Dust Bag Disposable
56 R160809 1 Bracket Exhaust
57 R163403 1 Gasket Exhaust
58 R07037 25 Disposable Paper Dust Bag PFS 8 Pack 2
(box 25)
58 R07039 50 Disposable Paper Dust Bag PFS 8 (box 50)
15 R020320 1 Multi-Speed Conversion Kit HT8/DU8 110
Volt (NA)
59 R163790 1 Tube Exhaust (Grey)
60 R167708 1 Shaft Floor Roller
61 R169704 2 Roller Floor Assembly (with bearing)
62 R902567 4 Bearing (Fan & Floor Roller)
63 R467308 4 Ring Retaining
64 R160504 1 Adjuster Floor Roller
65 R962139 2 Bolt
66 R980646 2 Washer
67 R962103 1 Screw
72 R167902 1 Shoe Intake
73 R163636 1 Cover Inlet
74 R167404 1 Rod Drum Guard
75 R920256 1 Nut
77 R980629 1 Washer
78 R169504 1 Weight Balance
79 R962409 1 Screw
80 R962170 1 Screw
81 R163791 1 Guard Belt (Grey)
82 R163814 3 Screw
83 R163869 4 Screw Guard Belt
84 R163792 1 Guard Wall End (Grey)
85 R980623 2 Washer
86 R962109 8 Screw
87 R167312 1 Ring Retaining
88 R164202 1 Housing Fan
89 R168203 1 Spacer Fan Bearing
90 R163813 2 Screw
91 R008212 1 Spacer Fan
92 R163004 1 Fan Intake
93 R162021 2 Clamp Bearing
94 R167608 1 Seal fan
95 R167210 1 Retainer Seal
96 R010210 4 Screw
97 R166906 2 Pulley Fan
98 R915028 6 Key
99 R167704 1 Shaft Fan
100 R010220 4 Screw and Washer Set
101 R980648 2 Washer
102 R980626 3 Washer Lock
103 R920132 3 Nut
104 R010180 4 Brush Motor
105 R962003 4 Screw
109 R010230 4 Brush Spring
110 R911662 1 Lead Motor Assembly
111 R167302 1 Ring Retaining
113 R168104 1 Sleeve
114 R163104 1 Field 110/120 Volt
115 R962401 2 Screw
116 R166172 1 Baffle Motor
117 R167204 1 Retainer Baffle
118 R160408 1 Armature 110/120 Volt
119 R980004 2 Spacer
121 R163008 1 Fan Motor
Ref. PSTK Pack Description
Qty. Ref. PSTK Pack Description
Qty.

RHINO PFS 8 PARTS LIST
123 R167802 1 Shield Pulley
124 R902550 2 Bearing Drum Shaft
125 R163682 2 Bearing Armature
126 R062003 2 Clamp Bearing
127 R962345 10 Screw
128 R168212 1 Spacer Motor Pulley
129 R163304 3 Flange Pulley
130 R166909 1 Pulley Motor
140 R163789 1 Brush Block Assembly
142 R962411 1 Screw
143 R162006 1 Clamp Bearing
144 R925113 1 Pin Drum Shaft
145 R161108 1 Bush Bearing
146 R168206 1 Spacer Bearing
149 R167716 1 Shaft Drum
152 R168209 1 Spacer Bearing
159 R166916 1 Pulley Drum
164 R903260 1 Belt Drum 3/4" (19mm) Wide
165 R903273 1 Belt Fan 1/2" (13mm) Wide
167 R162312 1 Drum Cover Kit
168 R162532 1 Drum Assembly Complete
169 R100327 13 Screw
170 R163012 1 Assembly Fan Intake
173 R163668 1 Lifting Pin Assembly
174 R000920 2 Screw Clamp Bar (screwdriver slot)
174 R163657 2 Screw Clamp Bar (coin slot)
175 R020045 1 Clamp Bar Paper (reversible)
15
Ref. PSTK Pack Description
Qty. Ref. PSTK Pack Description
Qty.
176 R164607 3 Insert Drum Kit
179 R000511 1 Owners Manual & Operating Instructions
200 R101219 1 Floor Roller Assembly
201 R163827 1 Kit Moulded Guards (Grey)
201 R163873 1 Kit Moulded Guards (Grey, excl. Tube Exhaust)
250 R011860 2 Service Tool - Extractor Seal
250 R100325 1 Service Tool - Clamp Drum Cover
250 R163822 1 Service Tool - Drum Insert Removal
250 R163857 1 Service Tool - Adjuster Floor Roller
250 R163865 1 Service Tool - Locking Drum
250 R024500 1 Test Lead
The following items are not illustrated.
Special Tools

16
RHINO PFS 8 CIRCUIT DIAGRAMimited
ARMATURE
FIELD
FIELD CABLE
CABLE REF. 39
21
43
65
U/V
O/C
CABLE REF. 20
SWITCH
UNDER VOLTAGE AND OVERLOAD PROTECTED
NOTE: TERMINALS3&4NOTUSED
U/V COIL LEADS
GREEN
BLACK
WHITE
FITTING A REPLACEMENT SWITCH
24 6
INSTRUCTION FOR NORTH AMERICA
CE () U. AC960V CSN EN 60947T-4-1
OEZ
1
STOP START
I. ??-??A
TEST
AC 3
SM1-10
53
Latch top
then push down
and back to secure
Ground terminals
do not disconnect.
Connect black conductor
and U/V lead.
Connect black conductor. Connect white conductor.
Connect white conductor
and U/V lead.
Motor Lead
Mains Lead

17
SERVICE & REPAIR
Contact your reseller for the name of your local service agent. Service and repairs undertaken by non-approved
service agents will void the product warranty. If you should have difficulty in obtaining service please contact Pacific
Floor Care at the following address.
Pacific Floor Care
2259 S. Sheridan Road
MUSKEGON
MI 49442-6252
Tel: [phone]
Fax: [phone]
Web: www.pacificfloorcare.com
PACIFIC LIMITED WARRANTY
Pacific Floor Care warrants to the original purchaser that the Pacific Floor Care machine covered by this warranty
is free from defects in workmanship and materials. Should any part fail in the period of two years from the date of
the original purchase as a result of a defect, Pacific Floor Care will (at it’s option) either repair or replace the part
without charge provided that the machine has been operated in accordance with the Owners Manual and
Operating Instructions.
Should any such defect arise, please contact your nearest authorized repair agent. Standard service over land
mainland freight costs will be refunded on warranty repairs at the sole discretion of Pacific Floor Care or the
authorized repair agent. If the repair is non-warranty, the customer will be advised before any work is undertaken.
This warranty is the sole warranty by Pacific Floor Care and is in lieu of all other warranties express or implied and
releases Pacific Floor Care from all other obligations and liabilities.
This warranty does not apply to normal wear and tear to the machine, and in particular does not cover normal
wear parts such as mains cable, wheels, switches, relays, brushes, rubber parts, hoses and bearings. This
warranty also does not cover, and Pacific Floor Care will not be liable for, excessive wear caused by abnormal use.
Pacific Floor Care will under no circumstances be liable for alterations to the machine or for damage caused by
third persons, or for misuse or abuse of the machine, or damage caused during transportation. Repairs of the
machine made or attempted by persons other than those specifically authorized by Pacific Floor Care shall render
this warranty void and Pacific Floor Care will not be liable for such repairs, the cost of such repairs, or the
consequences of such repairs. Where spare parts are used on the machine and they do not conform to Pacific
Floor Care specifications, this warranty will be rendered void and Pacific Floor Care will not be liable.
Pacific Floor Care will not be liable for any indirect or consequential loss, damage, cost or expense of any kind
whatever and however caused whether arising under contract, tort (including negligence) or otherwise including
(without limitation) loss of production, loss of profits or contracts or of operating time or goodwill or anticipated
savings.
PACIFIC FLOOR CARE
2259 South Sheridan, Muskegon, MI 49442
Tel: [phone] Fax: [phone]
Every effort has been made to present all information in this publication accurately, however no liability is
accepted for any inclusions or advice given or for omissions from this publication. Pacific Floor Care reserves the
right to make changes or improvements to its products without prior notice.