Brunson ROCK STEADY RS Series User manual
Heavy Duty Mobile
Metrology Stands
Manual for Models
RS Series and 232
Part No. 19399 Rev A
© Copyright 2023 Brunson Instrument Company
Brunson Instrument Company
8000 E 23rd Street
Kansas City, MO 64129
www.brunson.us
info@brunson.us
Tel 816-483-3187
Fax 816 -241-1945
Heavy Duty Mobile Metrology Stands
Manual for Models
RS Series and 232
Thank you for purchasing
a Brunson Rock Steady
or 232 Heavy-Duty Stand.
Remember that our customer
support does not stop after
shipment of a product—we
are here to help you with any
measurement challenges that
you may have.
Table of Contents
The Rock Steady Stand Line
The 232 Series Heavy Duty Mobile Stand
General Information
Safety Precautions
Unpacking and Setup
Moving and Positioning Your Stand
Stand Operation
Maintenance
Parts List and Diagram
Declaration of Conformity (CE Mark)
pg. 4
pg. 6
pg. 8
pg. 8
pg. 9
pg. 9
pg. 10
pg. 11
pg. 12
pg. 13
4
RS-230 Rock Steady Tall
RS-231 Rock Steady Short
RS-233 Rock Steady Medium
RS-231-MOD Extra Short
Rock Steady Adjustable Stands
5
RS-F-36
RS-F-6 RS-F-24
Rock Steady Fixed-Height Stands
RS-F-48
6
232 Series Heavy Duty Mobile Stands
The 232 Series Heavy Duty Mobile Stand
*232 Series models have a handwheel instead of a foot pedal.
7
*232 Series models have a handwheel instead of a foot pedal.
Foot Pedal*
Tribrach
Brace
Collar Locking Handle
Main Tube
Serial Number Location
Jam Nut
Trivet
Caster
Intermediate Tube (retractable)
Raise/Lower Control Handles
Ratchet Pawl
Figure 1
8
General Information
Safety Precautions
Congratulations and thank you for purchasing a Brunson Rock Steady metrology stand. At Brunson,
we recognize the importance of a stable, rugged and durable metrology platform, and the Rock
Steady stand line reects our passion for supporting accurate, tight-tolerance measurement.
Please take a moment to review this manual. It contains important safety and operational
information for the stand. Refer to Figure 1 on page 5 for part names referenced in the instructions.
Finally, for future reference, please record the model and serial number for the stand in the space
provided below.
Model Number
Serial Number
Static (non-moving) stability:
1. These stands are designed for use on level surfaces. Operating a stand on non-level surfaces
increases the tipping hazard.
2. Instrumentation / equipment used with the stand should be centered over the axis of the
Intermediate Tube. Extending unbalanced loads from the centerline axis increases the tipping
hazard.
Dynamic (moving) stability:
1. Stands should be moved only when no instrumentation / equipment is attached and the
Intermediate Tube is in its fully retracted (lowest) position.
2. Stands should be moved by manually pushing or pulling no faster than a normal walking
pace over smooth, level surfaces. Do not move a stand by pushing or pulling with a powered
vehicle.
3. Avoid sudden starts and stops.
These stands are designed for indoor use only. Wind (or other external) loading was not considered
when determining stability. Do not exceed the load capacity of the stand for any attached
instrumentation / equipment. The maximum load capacity is listed in Table 1.
9
It is the
responsibility of
the end user to
ensure that any
instrumentation/
equipment attached
to the stand is
safely secured.
Model
RS-230
RS-231
232 Series
RS-233
RS-231-MOD
RS-F-6
RS-F-24
RS-F-36
RS-F-48
Stand Weight
205 lbs (93 kg)
174 lbs (79 kg)
587 lbs (267 kg)
191 lbs (86.6 kg)
152 lbs (69 kg)
96 lbs (43.5 kg)
140 lbs (63.5 kg)
156 lbs (70.8 kg)
173 lbs (78.5 kg)
Max Load Capacity
150 lbs (68 kg)
150 lbs (68 kg)
150 lbs (68 kg)
150 lbs (68 kg)
150 lbs (68 kg)
150 lbs (68 kg)
150 lbs (68 kg)
150 lbs (68 kg)
150 lbs (68 kg)
Unpacking and Setup
Take o the top and sides of the crate by removing the screws. Cut the three band clamps holding
the tribrach legs down. With an overhead crane (or suitable alternative), lift the stand o the crate
and place on a level surface (refer to Table 1 for stand weights). If a foot pedal is present ensure it is
not engaged—the foot pedal should be “up” and free to move.
Tighten the lower (jam) knob on each trivet.
!
!
CAUTION! This is the safety alert symbol. This symbol alerts you to hazards that can hurt
you and others, and/or cause damage to equipment. Additional information specic to the
hazard will be included with this warning.
Moving/Positioning Your Stand
Ensure that the intermediate tube is in its lowest position and no instrumentation / equipment is
attached to the stand.
A foot pedal is used to extend the casters on the RS Series stands. The 232 Series uses a
handwheel. To extend the casters using the foot pedal, use your body weight and step on the pedal.
The locking latch is spring-loaded and will “click” into place when the stand is locked onto the
casters. For 232 Series Models, turn the hand wheel until the casters extend to
the ground.
Manually push or pull the stand into the desired position. The stand should be positioned so that
the tribrach leg on which the foot pedal (or handwheel) is mounted points toward the midpoint of the
work.
Table 1
10
Lower the stand onto the three trivets. If the oor is something other than concrete (e.g. wood, tiled,
etc.), you may wish to use pads under the trivets to provide protection for the oor. Lower the stand
by stepping down on the foot pedal to take the weight of the stand and rock your foot downward
using the ball of your foot to release the spring-loaded latch.
MAINTAIN SUFFICIENT PRESSURE ON THE FOOT PEDAL TO PREVENT THE STAND FROM
SUDDENLY DROPPING ONTO THE FLOOR WHEN THE LATCH IS RELEASED.
!
!
!
!
CRUSHING HAZARD! Stands are very heavy! Prior to lowering the stand, ensure area
below Tribrach is clear of all obstacles.
TRIPPING HAZARD! Due to the size of the footprint necessary for stand stability, the legs
of the stand can create a tripping hazard.
Stand Operation
With the intermediate tube fully retracted, attach the instrument / measuring equipment to the stand.
Raise the collar locking handle until the intermediate tube can be raised easily by rotating the
control handles.
To raise the intermediate tube, rotate the control handle counter-clockwise (when looking
at the hub).
!
!
TIPPING HAZARD! Move the stand over smooth, level surfaces only, with the intermediate
tube in its lowest position and no instrumentation / equipment attached. Move the stand by
manually pushing or pulling (no faster than a walking pace). Do not tow or push the stand
with a powered vehicle.
!
!
ROTATING HAZARD! The stands are equipped with an air-check mechanism to
prevent rapid descent of the intermediate tube. However, until sucient air pressure
has built up to slow the descent of the intermediate tube, considerable force can be
exerted by the free spinning control handle. Therefore, always lower the intermediate tube
by applying a resistive force to the control handle.
11
Maintenance
Although the stands were designed for minimal maintenance, two items will help maximize
service life:
1. A small amount of Neats Foot oil injected through the collar opening on a yearly basis will
keep the air cushion leather in good condition. This should be done with the intermediate tube
in the fully extended position.
2. A periodic wiping of the intermediate tube with a lightly oiled rag followed by wiping with a dry
cloth will preserve the chrome nish.
To lower the intermediate tube, release pressure from the ratchet pawl by slightly raising the
intermediate tube, and then retracting and holding the ratchet pawl away from the rack. Rotate the
control handle clockwise to lower the intermediate tube.
When the desired height has been reached, lock the intermediate tube in place by rotating the collar
locking handle down as tightly as you are able by hand.
Ensure that the trivets fully support the stand by checking to see that each caster rotates freely. If
this is not the case, loosen the jam nut and adjust the trivet. After adjusting, ensure that each jam
nut is tight against the tribrach.
The stand is positioned and ready to use.
Upon completion of the job, remove the instrument from the stand, raise the collar locking handle,
and lower the intermediate tube to the bottom of its travel.
12
Description
Retaining Ring
Ratchet Shaft
Ratchet Pawl
Pawl Spring
Pinion
Clamping Spoke
Hub Screw (not shown)
Knob
Handwheel Spoke
Handwheel Hub
Foot Pedal Assembly
Trivet
Hex Jam Nut
Caster
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Models RS-230, RS-231, RS-233
Part Number
12938
3646
3625
3655
3610
3608
3611
3566
3568
1926
20530
20787
21013
20512
Model 232
Part Number
12938
3646
3625
3655
3610
3608
3611
3566
3568
3653-G3
N/A
3840
Comm. 1" - 8
3690
Table 2
Parts List and Diagram
Note: The Model 232 has a handwheel (part number 4065-G1) rather than a foot pedal to engage the casters
13
EU DECLARATION OF CONFORMITY
WITH COUNCIL DIRECTIVE 2006/42/EC
Brunson Instrument Company
O B0
1414
All goods are sold by Brunson Instrument Company without any implied warranties of
merchantability or tness for use and without any other warranties, expressed or implied, except as
set forth below.
Any goods manufactured by Brunson Instrument Company, and found by Brunson Instrument
Company, to be defective in material or workmanship will be repaired, or at Brunson Instrument
Company’s option, replaced, for the original purchaser only, provided the goods are returned with
authorization to and by Brunson Instrument Company, transportation prepaid, within one year of the
original shipment from Brunson Instrument Company. This warranty does not apply to goods, which
have been subjected to alteration or servicing, rough handling, misuse, negligent use, re damage,
water damage, or other casualty or to ordinary wear and tear.
Repair or replacement of the defective products, as provided above, is the sole remedy of the
purchaser of products covered by this warranty and is the complete statement of Brunson
Instrument Company’s liability with respect to such products. Brunson Instrument Company shall
have no other or further liability with respect to such products, whether in tort, negligence, contract,
theory of strict tort liability or other theory.
Limited life time warranty for horizontal and vertical axis ball bearings: trunnion and spindle
bearings manufactured by Brunson Instrument Company, and found by Brunson Instrument
Company to be defective in material or workmanship, will be repaired or replaced at Brunson
Instrument Company’s option for the original purchaser only, provided the instrument for which the
bearings were returned, with authorization to and by Brunson Instrument Company, transportation
prepaid with documentation to support that the instrument has been fully serviced by an authorized
Brunson Instrument Company service representative at least at a minimum of three – and a
maximum of ve – year intervals from the date of original shipment at the time of purchase from
Brunson Instrument Company, and the instrument has not been subjected to alteration, rough
handling, misuse, negligent use, re damage, water damage or any other casualty.
The repair or replacement of the defective products, as provided above, is the sole remedy of the
purchaser of products covered by this warranty as the complete statement of Brunson Instrument
Company’s liability with respect to such products. Brunson Instrument Company shall have no other
or further liability with respect to such products, whether in tort, negligence, contract, theory of
strict tort liability, or other theory. Adjustments, calibrations, repairs, lamps, fuses, and batteries are
specically excluded from the foregoing statements.
THE FOREGOING STATEMENTS ARE IN LIEU OF ANY AND ALL OTHER EXPRESSED
OR IMPLIED WARRANTIES, AND THERE ARE NO IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE.
Brunson Instrument Company assumes no responsibility for any inconvenience, loss or injury or
consequential or incidental damage arising from the possession or use of products covered
by this warranty.
Warranty Information
1.19. 23
Brunson Instrument Company
8000 E 23rd Street
Kansas City, MO 64129
www.brunson.us
info@brunson.us
Tel 816-483-3187
Fax 816 -241-1945
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