HydraMaster RX20 NEXTGEN 120 VAC User manual

RX-20 / CMX-20
Owner’s Manual
HydraMaster North America, Inc.
11015 47th Avenue West, Mukilteo, Washington 98275
MAN-33272 Rev. 0, April 23, 2010
(182-006-D)
No part of this manual may be reproduced or used in any form or by any means (i.e. graphic, electronic, photocopying
or electronic retrieval systems) without the express written permission of HydraMaster North America, Inc.
All rights reserved. © 2010 HydraMaster North America, Inc.
DOMESTIC AND INTERNATIONAL

RX-20 / CMX-20
RX-20 / CMX-20 Owner’s Manual - ii
Table of Contents
INTRODUCTION.......................................................................................... SECTION 1
Contact Information................................................................................. 1-2
Warnings, Cautions and Notices............................................................. 1-3
MACHINE SPECIFICATIONS ...................................................................... SECTION 2
Congurations......................................................................................... 2-2
ASSEMBLY INSTRUCTIONS ...................................................................... SECTION 3
OPERATING INSTRUCTIONS..................................................................... SECTION 4
Preparation.............................................................................................. 4-1
Operation ................................................................................................ 4-2
CLEANING INFORMATION ......................................................................... SECTION 5
Cleaning Patterns.................................................................................... 5-1
Special Information ................................................................................. 5-2
Cleaning Hints......................................................................................... 5-2
MACHINE MAINTENANCE.......................................................................... SECTION 6
Daily Maintenance................................................................................... 6-1
Periodic Maintenance.............................................................................. 6-4
Transport and/or Storage ........................................................................ 6-4
Freeze Warning and Protection .............................................................. 6-4
ELECTRICAL DIAGRAMS ........................................................................... SECTION 7

RX-20 / CMX-20
iii - RX-20 / CMX-20 Owner’s Manual
ASSEMBLY DRAWINGS AND PARTS LISTS.............................................. SECTION 8
Final Assembly Parts List ....................................................................... 8-3
Upper and Lower Handle Assembly Parts List ....................................... 8-7
Handle Locking Linkage Assembly Parts List ........................................ 8-8
Base and Drive Train Assembly Parts List ............................................. 8-9
Gear Box Assembly Parts List ................................................................ 8-10
Vacuum Head (Original Style) Assembly Parts List ................................ 8-14
Vacuum Shoe and Skid (Original Style) Assembly Parts List.................. 8-15
RX-20/CMX-20 - 110 V Assembly Parts List (P/N 604-999-004 ) ........... 8-16
RX-20/CMX-20 - 110 V, Extended Handle Assembly
Parts List (P/N 604-999-005)............................................................. 8-17
RX-20/CMX-20 - 220 V Assembly Parts List (P/N 604-999-220) ............ 8-18
RX-20/CMX-20 - 220 V, Extended Handle Assembly
Parts List (P/N 604-999-225)............................................................. 8-19
REPAIR AND REPLACEMENT .................................................................... SECTION 9
Felt Vacuum Seal ................................................................................... 9-1
High Pressure Valve Assembly .............................................................. 9-2
TROUBLESHOOTING ................................................................................. SECTION 10
WARRANTY INFORMATION ....................................................................... SECTION 11

RX-20 / CMX-20
RX-20 / CMX-20 Owner’s Manual - iv
List of Figures and Tables
Figure 2-1. RX-20 / CMX-20 Optional Equipment................................................. 2-3
Figure 3-1. Fully Assembled RX-20 / CMX-20 ...................................................... 3-1
Figure 4-1. Pull or Push on Adjustment Lever....................................................... 4-1
Figure 4-2. Location of 440 Male Quick Connect.................................................. 4-1
Figure 4-3. Location of Control Triggers and Momentary Switch.......................... 4-2
Figure 4-4. Lift or Lower Handle to Maneuver....................................................... 4-3
Figure 4-5. Correct Cleaning Patterns .................................................................. 4-4
Figure 5-1. Clean into Area or Room .................................................................... 5-2
Figure 6-1. Remove Nut/Inline Filter ..................................................................... 6-1
Figure 6-2. Check Jet Spray for Even Flow .......................................................... 6-2
Figure 6-3. Loosen Cleaning Head Assembly....................................................... 6-2
Figure 6-4. Location of Rotary Union .................................................................... 6-2
Figure 6-5. Clean Off Debris from Gear Box Shaft ............................................... 6-2
Figure 6-6. Lubricate Vacuum Seal on Top of Hub ............................................... 6-3
Figure 6-7. Lubricate Shaft and Re-install Head Assembly................................... 6-3
Figure 7-1. Wiring Diagram - 110 V, 60 Hz............................................................ 7-1
Figure 7-2. Wiring Diagram - 220 V, 50 Hz ........................................................... 7-2
Figure 8-1. Final Assembly.................................................................................... 8-3
Figure 8-2. Upper and Lower Handle Assembly - Overview ................................. 8-4
Figure 8-3. Upper and Lower Handle Assembly - Parts View 1 of 2 ..................... 8-5
Figure 8-4. Upper and Lower Handle Assembly - Parts View 2 of 2 ..................... 8-6
Figure 8-5. Handle Locking Linkage Assembly ..................................................... 8-8
Figure 8-6. Base and Drive Train Assembly.......................................................... 8-9
Figure 8-7. Gear Box............................................................................................ 8-10
Figure 8-8. Vacuum Head Assembly.................................................................... 8-11
Figure 8-9. Vacuum Shoe and Skid Assembly ..................................................... 8-13
Figure 8-10. Vacuum Head (Original Style) Assembly ......................................... 8-14
Figure 8-11. Vacuum Shoe and Skid (Original Style) Assembly .......................... 8-15
Figure 9-1. Carefully Pry Seal Up and Lift Out...................................................... 9-1
Figure 9-2. Quick Connect, Back Plate and Stainless Steel Hose........................ 9-2
Table 8-1. RX-20 / CMX-20 Congurations............................................................ 8-2

1-1: Introduction
RX-20 / CMX-20
1- Introduction
Congratulations,
You now own a piece of equipment that incorporates the latest in carpet, tile and grout
cleaning technology. Your foresight in purchasing an RX-20 / CMX-20 shows that you
care enough to give your customer the maximum cleaning process available. You have
invested in not only a cleaning tool, but
a marketing tool that will enhance your
professional image in every way.
The RX-20 and the CMX-20 are basically
the same machine, with different names
and labels. HydraMaster truckmount owners
know this tool as the RX-20 whereas
CleanMaster portable owners know it as the
CMX-20.
The RX-20 / CMX-20’s features will almost
certainly increase your productivity while
decreasing the fatigue factor that may have
prevented you from going after some of the larger cleaning jobs that are available to
carpet cleaners and maintenance professionals today.
Your new RX-20 / CMX-20 is a powerful Rotary Jet Extractor that has been precision
engineered to bring you to the state-of-the-art in carpet, tile and grout cleaning. The
RX-20 / CMX-20’s weight distribution and rotary motion enable the operator to maneuver
the unit easily with less fatigue and without back strain.
The RX-20 / CMX-20’s electric motor drives its precision
transmission which, in turn, rotates the head, or star,
assembly.
Cleaning solution is injected through the center of the
gear box shaft directly to the three spray jets.
Soiled solution is then extracted from the carpet by ve
stainless steel cleaning heads and drawn through the
aluminum exhaust manifold to your cleaning system’s
recovery tank.

Introduction: 1-2
RX-20 / CMX-20
CONTACT INFORMATION
If you have any questions regarding the operation, maintenance or repair of this machine,
please contact your local distributor.
To nd a local distributor, please visit the HydraMaster website at http://www.hydramaster.
com/owners/locate/index.asp.
If your question cannot be resolved by your distributor or by the information within this
manual, you may contact HydraMaster Customer Service direct using the following phone
numbers.
Hours Telephone Numbers E-mail Addresses
Monday-Friday [phone] Service Tech Support:
[e-mail]
7:00 a.m. to 5:00 p.m. [phone] Parts Parts Support:
[e-mail]
Pacic Standard Time [phone] Parts /
Service FAX
When calling your distributor, be sure to reference the serial number and date of
purchase.
FOR YOUR REFERENCE:
Serial No.____________________________________________________
Date of Purchase:_____________________________________________
Purchased From (Distributor): __________________________________

1-3: Introduction
RX-20 / CMX-20
WARNINGS, CAUTIONS AND NOTICES
HydraMaster uses this WARNING symbol throughout the manual to warn of
possible injury or death.
This CAUTION symbol is used to warn of possible equipment damage.
This NOTICE symbol indicates that federal or state regulatory laws may apply,
and also emphasizes supplemental information.

Introduction: 1-4
RX-20 / CMX-20

2-1: Machine Specications
RX-20 / CMX-20
2- Machine Specications
RX-20 / CMX-20 - 110 V RX-20 / CMX-20 - 220 V
Length 23” 23”
Base Width 16” 16”
Height - Standard Up to 43” Up to 43”
Height - with
Extended Handle Up to 49” Up to 49”
Weight 70 lbs 70 lbs
Motor 1/2 HP Totally Enclosed
Fan-Cooled
1/2 HP Totally Enclosed,
Fan-Cooled
Voltage 110 V, 60 Hz 220 V, 50 Hz or 60 Hz
Gear Box
1,725 rpm Input
130 rpm Output
Permanently Lubricated
Helical Gear Drive
220V, 50 Hz 220V, 60 Hz
1,450 rpm
Input
109 rpm Output
Permanently
Lubricated
Helical Gear
Drive
1,725 rpm
Input
130 rpm Output
Permanently
Lubricated
Helical Gear
Drive
Oil Capacity 12 oz 12 oz
Star Head Plate Replaceable, Spring Steel
Arms
Replaceable, Spring Steel
Arms
Cleaning Heads Five Cast Aluminum Five Cast Aluminum
Solution Jets Three Stainless Steel, 80015
Veejet 80
Three Stainless Steel, 80015
Veejet 80
Solution Strainer Mesh, Stainless Mesh, Stainless
Solution Valve Stainless Steel,
High Pressure
Stainless Steel,
High Pressure
Cleaning Rate
Five Heads Rotating at
130 rpm = 650 Cleaning
Passes/Minute
220V, 50 Hz 220V, 60 Hz
Five Heads
Rotating at
109 rpm = 545
Cleaning
Passes/Minute
Five Heads
Rotating at
130 rpm = 650
Cleaning
Passes/Minute

Machine Specications: 2-2
RX-20 / CMX-20
RX-20 / CMX-20 - 110 V RX-20 / CMX-20 - 220 V
Handle
Assembly*
Foam Grips,
Adjustable Height
Foam Grips,
Adjustable Height
Transportation
Wheels
8” diameter, 1-1/2” Wide;
Grey, Non-Marking
8” diameter, 1-1/2” Wide;
Grey, Non-Marking
Electric Cord 50 ft, 14/3 50 ft w/M-F IEC Ends 220 V
The base, exhaust manifolds, handle, gear box housing and cleaning heads are all cast
aluminum. Other parts are either metal or high impact plastic.
The operating temperature and pressure of the cleaning solution as well as the
vacuum power depend entirely on the type of cleaning system you use.
CONFIGURATIONS
When selecting your high efciency rotary extractor machine, you have several models
from which to choose:
If you want this conguration: Order this P/N:
RX-20 - 110 V 700-041-006
RX-20 - 110 V, Extended Handle * 700-041-106
RX-20 - 220 V 700-041-007
RX-20 - 220 V, Extended Handle * 700-041-107
CMX-20 - 110 V 700-041-008
CMX-20 - 110 V, Extended Handle * 700-041-108
CMX-20 - 220 V 700-041-009
CMX-20 - 220 V, Extended Handle * 700-041-109
RX-20 and CMX-20 units are also available in these electrical congurations:
110 V - 60 Hz•
220 V - 50 Hz•
220 V - 60 Hz•
See Table 8-1 for detailed parts lists for all eight congurations.
* To accommodate operator comfort, HydraMaster designed the Extended Handle congurations which
increase overall length of the handle by 6”.