Novatek VRS Series Troubleshooting guide

© Copyright 2014 by NOVATEK Corporation
All rights reserved printed in the United States of America. No part of this manual may be used or reproduced in any form or
by any means, stored in data base or retrieval system, without prior written permission from NOVATEK Corporation.
Making copies of this manual for any purpose other than your own personal use is a violation of the United States copyright
laws.
March 1, 2016 issue 1.0
Specifications subject to changes without notice!
If you have any questions, please contact us:
NOVATEK CORORATION
254 Welsh Pool Rd
Exton, PA 19341
USA
www.novatekco.com
Toll Free 866 563-7800
Telephone: [phone]
Fax [phone]
Email: [e-mail]

OPERATION AND MAINTENANCE MANUAL FOR
VIBRATION REDUCED NEEDLE SCALERS
FOR PROFESSIONAL USE ONLY
IMPORTANT SAFETY INFORMATION ENCLOSED.
READ AND UNDERSTAND THIS MANUAL BEFORE OPERATING THIS PRODUCT.
IT IS YOUR RESPONSIBILITY TO MAKE THIS SAFETY INFORMATION
AVAILABLE TO OTHERS THAT WILL OPERATE THIS PRODUCT.
FAILURE TO OBSERVE THE FOLLOWING WARNING COULD RESULT IN INJURY.
PLACING TOOL IN SERVICE
 Always install, operate, inspect and maintain
this product in accordance with all applicable
standards and regulations (local, state, country,
federal, etc.).
 Compressed air models always use clean, dry
air at 90 psi (6.19ar/620kPa) maximum air
pressure at the inlet. Higher pressure may
result in hazardous situations including
excessive speed, rupture, or incorrect output
torque or force.
 Electric models must always utilize proper
gauge, and rated electrical cords with correct
connections.
 Be sure all hoses and fittings are the correctly
sized and secured.
 Ensure an accessible emergency shut off has
been installed in the air or electrical supply line.
Make others aware of its location.
 Do not use damaged, frayed, or deteriorated air
hoses and fittings.
 Always use proper gauge electrical cords with
correct connections. (When applicable.)
 Electric models must not use damaged, frayed, or
deteriorated electrical cords and connections.
 Keep clear of whipping air hoses. Shut off the
compressed air before approaching a whipping
hose.
 Always turn off and disconnect the tool from its
power supply before installing, removing or
adjusting any accessory, or before performing
any maintenance on the tool.
 Do not lubricate tools with flammable or volatile
liquids such as kerosene, diesel or jet fuel. Use
only recommended lubricants.
 Keep work area clean, uncluttered, ventilated and
illuminated.
 Keep all electrical connections clear of water or
other liquids. (When applicable.)
 Do not operate the machine while flammable or
volatile liquids such as gasoline, diesel or jet fuel
are present. Failure to do so can result in
explosion. (When applicable.)
 Do not remove any labels. Replace any damaged
label.
USING THE TOOL
 Always wear protection when operating or
performing maintenance on this tool.
 Always wear hearing protection when operating
this tool.
 Always use Personal Protective Equipment
appropriate to the tool used and material
worked. This may include dust mask or other
breathing apparatus, safety glasses, ear plugs,
gloves, apron, safety shoes, hard hat and other
equipment,
 Prevent exposure and breathing of harmful dust
and particles created by power tool use:
- Some dust created by power sanding, sawing,
and grinding, drilling, and other construction
activities contains chemicals known to cause
cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
- Lead from lead based paints,
- Crystalline silica from bricks and cement and
other masonry products, and
- 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.
 Keep others a safe distance from your work area,
or ensure they use appropriate Personal
Protective Equipment.
 This tool is not designed for working in explosive
environments, including those caused by fumes
and dust, or near flammable materials.
NOTICE
WARNING

 Electrically powered tools are not insulated
against electric shock.
 Be aware of buried, hidden or other hazards in
your work environment. Do not contact or
damage cords, conduits, pipes, or hoses that
may contain electrical wires, explosive gases or
harmful liquids.
 Keep hands, loose clothing, long hair and
jewelry away from working end of tool.
 Power tools can vibrate in use. Vibration,
repetitive motions or uncomfortable positions
may be harmful to your hands and arms. Stop
using any tool if discomfort, tingling feeling or
pain occurs. Seek medical advices before
resuming use.
 Keep body stance balanced and firm. Do not
overreach when operating this tool. Anticipate
and be alert for sudden changes in motion,
reaction torques, or forces during startup and
operation.
 Tool and/or accessories may briefly continue
their motion after throttle is released,
 To avoid accidental starting – ensure tool in
“off” position before applying air pressure or
connecting to electricity. Avoid throttle when
carrying, and release throttle with loss of air or
electricity.
 Ensure work pieces are secure. Use clamps or
vises to hold work piece whenever possible.
 Do not carry or drag the tool by the hose or
power cord.
 Do not use power tools when tired, or under the
influence of medication, drugs, or alcohol.
 Never us a damaged or malfunctioning tool or
accessory,
 Do not modify the tool, safety devices, or
accessories.
 Do not use this tool for purposed other than
those recommended.
 Use accessories recommended by Novatek
Corp.
 Never operate a tool with an accessory unless it
is properly installed and the tool is held firmly
against the work,
 Always use a retainer, when furnished, in
addition to proper barriers to protect persons in
surrounding or lower areas from possible
ejected accessories.
 When wearing gloves and operating models
with inside trigger, always be sure that the
gloves will not prevent the trigger from being
released.
 Wear safety shoes, hard hat, safety goggles,
gloves, dust mask and any other appropriate
protective clothing while operating the tool.
 Do no indulge in horseplay. Distraction can
cause accidents.
 Keep hands and fingers away from the throttle
lever until it is time to operate the tool.
 Never rest the tool on your foot.
 Never point the tool at anyone.
 Compressed air is dangerous. Never point an air
hose at yourself or others.
 Never blow clothes free of dust with compressed
air.
 Be sure all hose connections are tight. A loose
hose not only leaks but can come completely off
the tool and while whipping under pressure, can
injure the operator and other in the area. Attach
safety cables to all hosed to prevent injury in case
a hose is accidentally broken.
 Never disconnect a pressurized air hose. Always
turn off the air supply and bleed the tool before
disconnecting a hose.
 When applicable, the operator must keep limbs
and body clear of the chisel. If a chisel breaks,
the tool with the broken chisel projecting from the
tool will suddenly surge forward.
 Do not ride the tool with one leg over the handle.
Injury can result if the chisel breaks while riding
the tool.
 Know what is underneath the material being
worked. Be alert for hidden water, gas, sewer,
telephone or electric lines.
 Use only proper cleaning solvents to clean parts.
Use only cleaning solvents which meet current
safety and health standards. Use cleaning
solvents in a well ventilated area.
 Do not flush the tool or clean any parts with diesel
fuel. Diesel fuel residue will ignite in the tool
when the tool is operated, causing damage to
internal parts. When using models with outside
triggers or throttle levers, take care when setting
the tool down to prevent accidental operation.
 Do not operate the tool with broken or damaged
parts.
 Never start the tool when it is lying on the ground.
 This tool is not designed for working in explosive
atmospheres.

5
SECTION I
GENERAL
This operation and maintenance manual is for Vibration Reduce Needle Scalers. Part numbers VR19NPG, VR28NPG and
VR19NS.
READ ALL INSTRUCTIONS AND DATA IN THIS OPERATION AND MAINTENANCE MANUAL PRIOR TO OPERATION
OF THIS EQUIPMENT.
These instructions are for your protection and convenience. Please read them carefully since failure to follow the
precautions could result in injury. Whenever using electric powered equipment, basic safety precautions should be
followed.
If after reading this manual anything seems unclear, contact a NOVATEK authorized distributor or NOVATEK directly by
dialing 1-866-563-7800.
SECTION II
PRIOR TO USE
1. Put a few drops of oil through the air inlet using light machine oil. (See recommended lubricants.)
2. The compressed air should be free from moisture and contamination. The installation of a filter/regulator/lubricator air
preparation set (with moisture trap) is strong recommended.
3. Ensure that only 10mm (3/8”) bore airline is used and that all Couplings are tight and in good condition.
4. Limit the length of airline to 50ft. Where extra length is necessary, for each additional 100ft, the pressed drop is
approximately 0.19ar at 6.9bar.
5. Check that the tool is mechanically sound and all airlines are leak free and in good condition.
SECTION III
IN USE
1. Maintain contact with the work surface with sufficient pressure only to keep the tool from bouncing off. Excessive
operator pressure will not improve tool efficiency. Handled in this way, the tool will cover a greater area more effectively
leaving a more regular finish on the surface.
2. In particularly cold temperatures it is recommended that propriety anti-freeze lubricating oil is to be used.
3. Avoid letting the operating pressure fall below 5.5bar (80psi) or rise about 6.9bar (100psi).
NOTE: The correct operating pressure is 6.19ar (90psi).
SECTION IV
CHANGING NEEDLES
1. Before changing or replacing needles, disconnect the air supply to the tool.
2. Unscrew the Front Tube Assembly and remove the Front Assembly. Make sure to keep the Tube Assembly tilted down
to not have internal components fall out.
NOTE: Take note of how all parts within the front tube fit together as incorrect assembly will result in damaging the
tool when used.

6
3. Remove the Needle Holder from the Front Tube and change the Needles. Ensure that all Needles are replaced with
new ones.
4. Place the Needle Holder back into the Front Tube assembly. Ensure that the Spring is in position and Needles are
passing through the center. Refit the Front Tube assembly onto the body and tighten.
LUBRICATION
Oil the tool daily during use, applying a few drops of light machine oil through the air inlet. Do not allow oil to enter and
perish the air hose. Check the table below for recommended lubricants. Always use clean air tool oil from a sealed container
if possible. The use of a filter lubricator in the airline of the tool is also strongly recommended. This will ensure trouble free
running and prolong the life of the tool.
CLEANING
At 100 hours of operating intervals or earlier if the operating becomes sluggish or tools show sign of sticking, flush through
with a suitable solvent. Immediately after flushing, thoroughly oil the tool with one of the recommended lubricants.
Note: Replace the 6mm Ball at this time.

7
VRS Needle/Chisel Guns and Accessories
VRS
19
Inline
VRS
19
PG
VRS
28
PG
Description
Part No.
Part No.
Part No.
Needle Scaler including Straight Front Tube and Chisel Tip Needles
VR
S
19
0
NS
VR
S0
19NPG
VR
S0
28NPG
Chisel Scaler including 1/2" Square Chisel Holder and 3/4" Chisel
VR
S
19
0
CS
VR
S0
19CPG
VR
S0
28CPG
VSE Vacuum
Shrouded
Needle S
caler w/
Chisel Tip
Needles
19NSVSE105
19NSVSE110
28NSVSE110
Needle Scaler Spares
Item
Description
Inline
19
PG
28
PG
No.
Part No.
Part No.
Part No.
1
Valve Cap
28NS501
28NS501
28NS501
2
Valve Cap 'O' Ring (Pack of 10)
28NS502
28NS502
28NS502
3
Valve Spring
28NS503
28NS503
28NS503
4
Valve Stem
28NS504
28NS504
28NS504
5
Valve Seat 'O'
Ring (Pack of 10)
28NS505
28NS505
28NS505
6
Valve Body Assembly (comprises items 1
-
8)
28NS506
28NS506
7
Throttle Lever
28NS507
28NS507
28NS507
8
Roll Pin (Pack of 10)
28NS508
28NS508
28NS508
9
Rubber Grip
28NS518N
28NS518N
10
Cover Assembly
19
/PG &
28
/PG
VRS19410
VRS28410
10A
Cover Assembly Inline
VRS28410
12
Guide Plate
VRS19412
VRS19412
VRS28412
13
Guide Plate Seal
VRS19413
VRS19413
VRS28413
14
Guide Plate O’Ring
28NS512
28NS512
28NS512
15
Cylinder
VRS19415
VRS19415
VRS
284
15
17
6mm
Diameter Ball
VRS28417
VRS28417
VRS28417
18
Ball Retaining O’Ring
VRS28418
VRS28418
VRS28418
22
Intermediate Tube
VRS19422
VRS19422
VRS28422
23
Tube Sleeve
VRS19423
VRS19423
VRS28423
24
Circlip
VRS28424
25
Front Tube Locking O’Ring
28NS512
28NS512
28NS512
26
Piston
VRS19426
VRS19426
VRS28426
28
Valve Pin
VRS2842
8
VRS2842
8
VRS2842
8
29
Piston Ring
VRS19429
VRS19429
VRS28429
30
3mm Needle Holder
VRS19431
VRS19431
VRS28431
30
2mm Needle Holder
VRS19430
VRS19430
VRS28430
31
Needles
see item 31
32
Front Spring
VRS19432
VRS19432
VRS28432
33
Front Tube Insert
VRS19433
VRS19433
VRS28433
34
Front Tube
VRS19434
VRS19434
VRS28434
35
Cylinder Stem Reaction Ring
VRS28435
VRS28435
VRS28435
36
Anvil ( Required Part to Run Chisel Holder )
VRS19436
VRS19436
VRS28436
37
Chisel Holder (Anvil Required to Run Chisels)
VRS19437
VRS19437
VRS28437
38
Chisels ( SEE PAGE 11 )
Service Kit ( 2, 5, 13, 14, 17, 18, 19, 28, 29, 30, 31set & 32
VRS19RK3
VRS19RK3
VRS28RK3
40
VSE Vacuum
Shrouded Tube
VRS28434VSE
VRS28434VSE
VRS28434VSE
41
Cap Head Screw
28NS530
28NS530
28NS530
42
Flat Cuff for flat Surface
19NSVSE401
19NSVSE401
28NSVSE401
43
Corner Cuff for inside and outside corners
19NSVSE402
19NSVSE402
28NSVSE402

8
Needle Scaler
Consumables
Item
Description
No.
Part No.
Carbon Steel
31
Pack of 100 2mm Needles (Flat Tip)
NPK2010
31a
Pack of 250 2mm Needles (Flat Tip)
NPK2015
3
11
Pack of 500 2mm Needles (Flat Tip)
NPK2020
31c
Pack of 2000 2mm Needles (Flat Tip)
Bulk Case
NB27FCS
31d
Pack of 100 3mm Needles (Flat Tip)
NPK3040
31e
Pack of 250 3mm Needles (Flat Tip)
NPK3045
31f
Pack of 500 3mm Needles (Flat Tip)
NPK3050
31g
Pack of 1000 3mm Needles (Flat Tip)
Bulk Case
NB37FCS
Number of Needles for Each Tool
31h
Pack of 100 3mm Needles (Chisel Tip)
NPK3120
2mm
3mm
4mm
31i
Pack of 250 3mm Needles (Chisel Tip)
NPK3125
Inline
51
19
31j
Pack of 500 3mm Needles (Chisel
Tip)
NPK3130
19
/PG
51
19
31k
Pack of 1000 3mm Needles (Chisel Tip)
Bulk Case
NB37CCS
28
/PG
65
28
19
31p
Pack of 100 4mm Needles (Flat Tip)
NPK4010
31q
Pack of 250 4mm Needles (Flat Tip)
NPK4015
31r
Pack of 500 4mm Needles (Flat Tip)
Bulk
Case
NB47FCS
31s
Pack of 100 4mm Needles (Chisel Tip)
NPK4025
31t
Pack of 250 4mm Needles (Chisel Tip)
NPK4030
31u
Pack of 500 4mm Needles (Chisel Tip)
Bulk Case
NB47CCS
31y
Pack of 50 3mm Needles (Beryllium Copper)
NPK3080
31z
Pack of 100 3mm Needles (Beryllium Copper)
NPK3085
31aa
Pack of 250 3mm Needles (Beryllium Copper)
NPK3090
31ab
Pack of 500 3mm Needles (Beryllium Copper)
Bulk Case
NB37FBC
38
Chisel 1/2" Square 7" Long x 3/4" Blade
ACCS101
38a
Chisel 1/2" Square 7" Long x 2" Blade
ACCS103
38b
Chisel 1/2" Square 7" Long x Diamond Point
ACCS106
38c
Chisel 1/2" Square 10" Long x 3" Blade
ACCS107
38d
Chisel 1/2" Square Cranked 7" Long x 1 3/8" Blade
ACCS108
38e
Chisel 1/2"
Square Spark Resistant Blade
ACCS110
Allen Key for Cap Head Screws
H0601

9

10

11
NOVATEK CORPORATION LIMITED WARRANTY
The TOOLS manufactured by NOVATEK CORPORATION are warranted to be free from defects in
material and workmanship for a period of 180 DAYS from the date of purchase from NOVATEK
CORPORATION. This warranty does not apply to accessories. All electrical components of the tool
are also warranted to be free from defects in material and workmanship for a period of 180 DAYS.
This warranty applies only to TOOLS purchased new from NOVATEK CORPORATION. This
warranty does not apply to any TOOL which has been abused, misused, modified or repaired by
someone other than NOVATEK CORPORATION or its authorized repair center.
If a TOOL proves defective in material or workmanship within one year of purchase from NOVATEK
CORPORATION, it should be returned to NOVATEK CORPORATION, transportation pre-paid. The
return must be authorized by a RETURN MERCHANDISE AUTHORIZATION NUMBER (R.M.A. #)
obtained from NOVATEK CORPORATION prior to returning the UNIT. All packages must show
clearly on the outside the return merchandise authorization number. All packages received without
any R.M.A. # on the outside will be refused by NOVATEK CORPORATION receiving department.
Warranty claims will only be considered upon adequate proof of date of purchase. NOVATEK
CORPORATION will, at its option, REPAIR or REPLACE DEFECTIVE PARTS. Repairs or
replacements are warranted as above for the remainder of the original warranty period. The sole
liability of NOVATEK CORPORATION and the user’s exclusive remedy under this warranty is limited
to the repair or replacement of the defective product.
THERE ARE NO OTHER WARRANTIES EXPRESSED OR IMPLIED AND NOVATEK
CORPORATION SHALL NOT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR SPECIAL
DAMAGES OR ANY OTHER EXPENSES OR REPAIR OR REPLACEMENT AS DESCRIBED
ABOVE.
All warranty claims should be forwarded to:
NOVATEK CORPORATION
254 Welsh Pool Rd
Exton, PA 19341
ATTENTION: CLAIM AND SERVICE DEPARTMENT
R.M.A. # ____________
CALL Toll Free at 1-866-563-7800 for your RMA number prior to shipping.
Also include a brief description of the problem as well as a phone number, contact name and return
address in case NOVATEK CORPORATION service personnel has to get in contact with you.