Rice Lake BenchMark Series User manual

BenchMark Series
Single Point Bench Scales
Technical Manual
®
January 22, 2019 22125 Rev E

An ISO 9001 registered company
© Rice Lake Weighing Systems. All rights reserved.
Rice Lake Weighing Systems® is a registered trademark of
Rice Lake Weighing Systems.
All other brand or product names within this publication are trademarks or
registered trademarks of their respective companies.
All information contained within this publication is, to the best of our knowledge, complete and
accurate at the time of publication. Rice Lake Weighing Systems reserves the right to make
changes to the technology, features, specifications and design of the equipment without notice.
The most current version of this publication, software, firmware and all other product
updates can be found on our website:
www.ricelake.com

Contents
© Rice Lake Weighing Systems ● All Rights Reserved i
Contents
Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.ricelake.com/training
or obtained by calling 715-234-9171 and asking for the training department.
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 10" x 10"/ 12" x 12" SL Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 12", 18" and 24" Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 12" x 18" Stainless Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5.1 10" x 10" and 12" x 12" SL Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5.2 12" x 18" Stainless Steel Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5.3 12", 18" and 24" Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Leveling Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Connecting the Load Cell Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Grounding the Scale Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.0 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.0 Maintenance/Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Load Cell Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1.1 10"x 10" and 12"x 12" SL Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1.2 12", 18", and 24" Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 Installing Protective Clamshells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.0 BenchMark Series Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

BenchMark Series
ii Visit our website www.RiceLake.com
Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 1
1.0 Introduction
Congratulations on choosing a scale from the BenchMark series, the highest-quality single point benchtop scale available. The
following types of NTEP-approved BenchMark scales are available:
The BenchMark SL is a light-capacity scale featuring stainless steel construction in 10" x 10" and 12" x 12" platforms with
capacities from 2-100 lb.
A mid-range model with a 12" x 18" platform and a cover and frame that are constructed of stainless steel. This model is
available in capacities from 50-100 lb.
The medium to high capacity series is constructed with stainless steel covers and mild steel or optional stainless steel frame
construction. They are available in sizes from 12" x 12" up to 24" x 24" in capacities from 30-1000 lb.
A feature of the BenchMark series is its ability to be converted into a checkweigher. Add the neck and head from a CW-80
CheckWeigher to a BenchMark scale and the features of a checkweigher are available. Contact your Rice Lake Weighing
Systems distributor for more information.
Manuals are available for viewing and/or downloading from the Rice Lake Weighing Systems website at
www.ricelake.com/manuals
Warranty information can be found on the website at www.ricelake.com/warranties
1.1 Safety
Safety Signal Definitions:
Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury. Includes
hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death. Includes
hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, could result in minor or moderate injury.
Indicates information about procedures that, if not observed, could result in damage to equipment or corruption
to and loss of data.
General Safety
Do not operate or work on this equipment unless this manual has been read and all instructions are understood.
Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Rice Lake
Weighing Systems dealer for replacement manuals.
Failure to heed could result in serious injury or death.
Do not allow minors (children) or inexperienced persons to operate this unit.
Do not operate without all shields and guards in place.
Do not jump on the scale.
Do not use for purposes other then weight taking.
Do not place fingers into slots or possible pinch points.
Do not use any load bearing component that is worn beyond 5% of the original dimension.
Do not use this product if any of the components are cracked.
Do not exceed the rated load limit of the unit.
Do not make alterations or modifications to the unit.
Do not remove or obscure warning labels.
Before opening the unit, ensure the power cord is disconnected from the outlet.
Keep hands, feet and loose clothing away from moving parts.
DANGER
WARNING
CAUTION
IMPORTANT
WARNING

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1.2 10" x 10"/ 12" x 12" SL Models
All seven models of the 10" x 10" and 12"x 12" SL series have stainless steel covers and frame systems. All models use a single
point load cell. The 10, 20, 30, 50, and 100 lb models come standard with a potted single point load cell that offers extra protection
against water infiltration but is not designed for washdown use. The 30, 50, and 100 lb models can also be supplied with an
RL1140 stainless steel load cell. Extra load cell protection is also available in optional stainless steel clamshells, which enclose the
load cell. See Section 4.2 on page 11 for information about clamshell installation. All load cells come with 10' of cable.
Figure 1-1. Overload Springs
The SL series scales use a sensitive 4-point, spring-plate suspension to minimize shock and overload damage susceptible of
light-capacity scales. The system uses a bolt and an overload protection spring at each of four loading points beneath the top
cover (see Figure 1-1 ). Each spring is set for a specific tension so that it will compress to prevent overload damage. If a
potentially damaging load is placed on a corner of the scale, the spring at that corner compresses. When the spring compresses,
the load is taken off the load cell. This eliminates the possibility of overloading the load cell. Likewise, if a load more than 150% of
total capacity is placed anywhere on the deck, the springs will compress and remove the load from the load cell.
In addition to the overload protection spring, the SL models incorporate a load cell overload protection screw beneath the load
cell to help prevent overload damage.
To protect the load cell from being accidentally forced upward and damaged by improperly lifting the scale by the spider, a lift up
protection screw is incorporated into the design (see Figure 1-2).
Figure 1-2. Lift up Protection Screw
Overload Protection Springs
Lift up Protection Screw
Overload Protection Screw

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 3
1.3 12", 18" and 24" Models
Larger models in the series use mild steel frames and stainless steel deck covers for light washdown with a damp sponge. All
models are available with mild steel or optional stainless steel underbody frame construction. The standard load cell is a single
point load cell. Options include a stainless steel RL1140 load cell for 12" x 12" and 12" x 18" models and protective stainless
steel clamshells for all models using a single point load cell. All load cells come with 10' of cabling.
Figure 1-3. 12" x 12" Overload Stops
These medium-capacity bench scales provide overload protection for the load cell by positive stops located beneath each
corner of the top frame (see Figure 1-3). These stops are set at the factory for 100% of scale capacity. Additional overload
protection is provided by an overload screw beneath the load cell to help prevent shock damage.
1.4 12" x 18" Stainless Steel
The 12" x 18" model has a stainless steel cover and underbody frame to meet USDA requirements and make it ideal for
washdown use. The 12" x 18'' comes standard with a single point load cell; a stainless steel load cell is optional for both the 50
lb and 100 lb models. Extra load cell protection is available with the optional stainless steel clamshell that encloses the load
cell. See Section 4.2 on page 11 for information about clamshell installation. All load cells come with 10 feet of cabling.
Figure 1-4. 12” x 18” Overload Stops
These medium-capacity bench scales provide overload protection with positive stops located beneath each corner of the top
frame. These stops are set at the factory for 100% of scale capacity. Additional overload protection is provided by an overload
screw beneath the load cell to help prevent shock damage.
Top Frame
Overload Protection Screw
Overload Stops
Overload Stops Top Frame

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1.5 Specifications
1.5.1 10" x 10" and 12" x 12" SL Models
Load Cell: Potted single point (5 lb not potted);
Stainless steel load cells available on 30, 50 and 100 lb models
Rated Output: 0.91 mV/V
Maximum Overload: 200%
Overload Protection: Spring loaded spider
Cable Length: 10' (3 m) – 6 wire shielded
Output Impedance (ohms): 350
Compensated Temperature Range: -10°C/14°F to +50°C/122°F
Safe Temperature Range: -30°C/-22°F to +70°C/158°F
Dimensions/Capacities:
1.5.2 12" x 18" Stainless Steel Model
Load Cell: Potted single point; Stainless steel load cells available on 50 lb and 100 lb models
Rated Output: 0.91 mV/V
Maximum Overload: 200%
Overload Protection: 5 point, independently adjusted
Cable Length: 10' (3 m) – 6 wire shielded
Output Impedance: 350
Compensated Temperature Range: -10° C/14° F to +50° C/122° F
Safe Temperature Range: -30° C/-22° F to +70° C/158° F
Dimensions/Capacities:
Size Capacity Height
10" x 10"/
254 mm x 254 mm
5 lb / 2.3 kg 3.15" / 80 mm
10 lb / 4.5 kg 3.15" / 80 mm
20 lb / 9.1 kg 3.15" / 80 mm
30 lb / 13.6 kg 3.15" / 80 mm
12" x 12"/
305 mm x 305 mm
30 lb / 15 kg 3.25" / 92 mm
50 lb / 25 kg 3.25" / 92 mm
100 lb / 50 kg 3.25" / 92 mm
Table 1-1. SL Model Sizes
Size Capacity Height
12" x 18" /
305 mm x 457 mm
50 lb / 25 kg 4.00" / 102 mm
100 lb / 50 kg 4.00" / 102 mm
Table 1-2. Stainless Steel Model Sizes

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 5
1.5.3 12", 18" and 24" Models
Load Cell: Potted single point
Available Sizes: 12"x 12", 12"x1 8", 18"x1 8", 18"x 24", 24"x 24":
Overload Protection: 5 point, independently adjusted
Cable Length: 10 ft. (3 m) – 6 wire shielded
Rated Output: 0.91 mV/V
Output Impedance: 350
Maximum Overload: 200%
Compensated Temperature Range: -10°C/14°F to +50°C/122°F
Safe Temperature Range: -30°C/-22°F to +70°C/158°F
Dimensions/Capacities:
Size Capacity Height
12" x 12" /
305 mm x 305 mm
30 lb / 13.6 kg 3.62" / 92 mm
50 lb / 25 kg
100 lb / 50 kg
12" x 18" /
305 mm x 457 mm
50 lb / 25 kg 3.62" / 92 mm
100 lb / 50 kg
18" x 18" /
457 mm x 457 mm
50 lb / 25 kg 5.25" / 133 mm
100 lb / 50 kg
150 lb / 75 kg
200 lb / 100 kg
250 lb / 125 kg
300 lb / 150 kg
500 lb / 250 kg
1000 lb / 500 kg
18" x 24" /
457 mm x 610 mm
50 lb / 25 kg 5.25" / 133 mm
100 lb / 50 kg
150 lb / 75 kg
200 lb / 100 kg
250 lb / 125 kg
300 lb / 150 kg
500 lb / 250 kg
1000 lb / 500 kg
24" x 24" /
610 mm x 610 mm
100 lb / 50 kg 5.25" / 133 mm
150 lb / 75 kg
200 lb / 100 kg
250 lb / 125 kg
300 lb / 150 kg
500 lb / 250 kg
1000 lb / 500 kg
Table 1-3. Larger Capacity Model

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2.0 Installation
2.1 Leveling Scale
Remove the scale from the shipping container and place it in the desired location. Lift off the deck cover and locate the bubble
level. Adjust the four corner feet until the scale is level and all feet contact the support surface so the scale does not rock. Lock
the jam nuts on the feet when the final level is correct.
2.2 Connecting the Load Cell Cable
All models come with 10 feet of color-coded load cell cable.
Do not cut this cable. The load cell is temperature-compensated for an exact cable length of 10 feet.
See the indicator manual to determine the proper load cell cable input connectors. Use the following color codes to wire the
load cell cable.
2.3 Grounding the Scale Base
Bench scales can build up a static electricity charge during weighing operations. If powerful enough, this charge can travel
through the load cell cable to the indicator. To prevent this, all bench scales should be adequately grounded so that static
charges and transient electrical surges can drain directly to ground. Recommended practice is to connect the scale base to an
AC ground circuit using at least #12 wire. All BenchMark scales have either a grounding screw or a hole for such a grounding
screw located on the bottom of the lower frame for this purpose.
6-Wire Color Code Function
Red +Signal
White - Signal
Green + Excitation
Black - Excitation
Blue + Sense
Brown - Sense
Yellow or Bare Shield
Table 2-1. Load Cell Wiring - 6 Wire
4-Wire Color Code Function
Red + Signal
White - Signal
Green and Blue* + Excitation
Black and Brown* - Excitation
Yellow or Bare Shield
* Connect Sense and Excitation wires together if using 4-wire
system without sense leads.
Table 2-2. Load Cell Wiring - 4 Wire
IMPORTANT

Calibration
© Rice Lake Weighing Systems ● All Rights Reserved 7
3.0 Calibration
It is recommended that the scale be exercised by loading it to near capacity two or three times before calibration to be certain
that everything is seated. To calibrate the BenchMark:
1. With no load on scale, place the indicator in its calibration mode and perform a zero calibration.
2. Place test weights on platform equal to 70%–100% of scale’s capacity. If several weights are used, distribute them
evenly around the platform.
3. Perform a span calibration.
4. Remove the test weights and check the zero reading. If necessary, repeat the calibration process.
See the indicator manual for the specific indicator calibration procedure.

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4.0 Maintenance/Troubleshooting
Use the following troubleshooting tips for the Benchmark scale if necessary.
4.1 Load Cell Replacement
4.1.1 10"x 10" and 12"x 12" SL Models
1. Unplug AC power from indicator and disconnect load cell cable from indicator.
2. Lift off scale top cover.
3. Locate two upper load cell screws. Use 7/16" wrench to unscrew and remove those two load cell screws.
Do not remove four spring-loaded screws that attach load plate to spider assembly.
4. Lift off load plate/spider assembly as a unit.
5. Remove spacer between load plate and load cell and set it aside.
Figure 4-1. Load Cell Mount Diagram
6. Turn scale over and back off overload protection screw one complete turn. Completely unscrew and remove lift up
protection screw.
7. Use 7/16" wrench to unscrew and remove two lower load cell screws. The load cell and cable can now be removed
from scale. Do not lose shim beneath load cell.
Symptom Probable Cause Remedy
No display Power disconnected Connect power
Cable cut or disconnected Repair cable
Signal leads incorrectly wired at indicator Connect according to the manual
Display starts at zero Incorrect load cell cable connections Connect according to the manual
Faulty indicator Service indicator
Erratic Weight display Vibration near the scale Remove the source of the vibration, or adjust digital averaging of
indicator to minimize erratic display
Scale not level Level the scale
Water damage to the load cell or cable Replace the load cell
Faulty indicator Service the indicator
Loose load cell screws Tighten to correct torque
Faulty load cell Test and replace if necessary
Consistently low weight Indicator not properly adjusted to zero Zero indicator correctly
Scale deck cover binding Obtain adequate clearance
Overload stops set too high Reset the stops correctly
Indicator not calibrated for scale Calibrate the scale
Faulty load cell Test and replace if necessary
Table 4-1. Benchmark Troubleshooting Table
IMPORTANT
Lift up
Protection
Screw
Overload
Protection
Screw
Load Cell Screw
Load Cell Screw Top Sub-Assembly
Load Plate / Spider
Top Cover

Maintenance/Troubleshooting
© Rice Lake Weighing Systems ● All Rights Reserved 9
8. Thread cable of replacement load cell through rubber grommet. Position load cell on shim and screw in two lower load
cell screws. Torque to 80 in-lb.
9. Replace lift up protection screw by screwing it in until it lightly bottoms, then back it off 1/4 turn.
10. Turn scale right side up. Position spacer on load cell, then place load plate/spider assembly into position. Screw in two
upper load cell screws. Torque to 80 in-lb.
11. Using an accurate caliper, check compressed spring length on four overload springs (Figure 4-2). If necessary, adjust
spring length to specifications shown in Table 4-2. Replace top cover and re-level scale if necessary.
12. Connect load cell cable to indicator.
13. Recalibrate scale as described in Section 3.0 on page 7.
14. Adjust overload protection screw on bottom of scale by loading scale to 125% capacity. Place this weight on top cover,
centered on platform. Use a hex wrench to screw in overload protection screw until it touches load cell, then back off 1/
6 turn. Recheck calibration.
Figure 4-2. Spring Height
Scale Model Spring Length "H"
10 x 10 - 5 Lb 1.06
10 x 10 - 10 Lb .94
10 x 10 - 20 Lb .97
10 x 10 - 30 Lb 1.43
12 x 12 - 30 Lb 1.43
12 x 12 - 50 Lb 1.12
12 x 12 - 100 Lb 1.16
Table 4-2. Overload Spring Length
H ±.0 2

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4.1.2 12", 18", and 24" Models
1. Unplug AC power from indicator and disconnect load cell cable from indicator.
2. Lift off scale top cover.
3. Remove two load cell screws.
4. Lift off top spider.
5. Remove spacer plate and set it aside.
Figure 4-3. 12" x 12" Load Cell Mount
6. Loosen the four overload stop screws and turn each screw in one turn to provide ample clearance for the new load
cell. Turn scale over and back off overload protection screw one complete turn to provide clearance.
7. Unscrew and remove lower load cell screws. Depending on model of scale, there will be either two or four lower load
cell screws.
8. Remove bottom shim beneath load cell and set it aside.
9. Remove load cell and cable from scale.
10. Thread cable of replacement load cell through rubber grommet.
11. Position bottom shim directly beneath load cell and screw in lower load cell screws. Torque to 80 in-lbs for 12" x 12"
and 12" x 18" scales, to 120 in-lb for 18" x 18", 18" x 24", and 24" x 24" scales.
12. Turn scale right side up. Position spacer plate on load cell, then place top spider into position.
13. Screw in four upper load cell screws. Torque to 80 in-lbs for 12" x 12" and 12" x 18" scales, to 120 in-lb for 18" x 18",
18" x 24", and 24" x 24" scales.
14. Connect load cell cable to indicator.
15. Recalibrate scale as described in Section 3.0 on page 7 of this manual.
16. Adjust overload protection screw on bottom of scale by loading scale to 125% capacity. Place this weight on top cover,
centered on platform. Use a hex wrench to screw in overload protection screw until it touches the load cell, then back
off 1/6 turn. Recheck calibration.
17. To reset corner overload stop screws, load top spider over one corner with approximately 30% of scale capacity.
Adjust screw under that corner to just touch top frame. Place a drop of a non-permanent, high-strength locking
compound such as LOCTITE® on the thread. Back screw off slightly so it is not touching.
Overload Stop
Screws
Overload
Protection Screw
Load Cell Screws
Load Cell
Screws
Load Plate
Top Frame

Maintenance/Troubleshooting
© Rice Lake Weighing Systems ● All Rights Reserved 11
4.2 Installing Protective Clamshells
Stainless steel enclosures called clamshells are available to provide extra protection for the load cell of every BenchMark scale.
All clamshells are pre-drilled for load cell screws, overload screws, and cables. Any existing load cell shims or spacers are
installed inside the clamshells.
1. The lower clamshell fits inside the upper clamshell and is installed first. Position the clamshell so that no part of it
touches the load cell, then tighten the lower load cell screws to the specifications given Section 4.1.1 on page 8 or
Section 4.1.2 on page 10.
When installing the upper clam shell, position it so there is clearance on all sides to prevent any binding
problems with the lower clam shell.
2. Tighten the upper load cell screws to the required torque.
3. When installation is complete, reset all overload protection screws as described in Section 4.1.1 on page 8 or
Section 4.1.2 on page 10.
4. Calibrate the scale according to the procedure described in Section 3.0 on page 7.
Figure 4-4. Clamshell Enclosure
IMPORTANT
UPPER
CLAM SHELL LOWER
CLAM
SHELL

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4.3 Replacement Parts
10" x 10" and 12" x 12" SL and SL/HE Series
Figure 4-5. 10 x 10 and 12 x 12 SL and SL/HE Parts Illustration
Section BB (Enlarged)
Top View of Scale
with cover
17 18
19
21 20
24
25
1
A
A
B
B
Section AA (Enlarged)
2
3
4
5
7
8
9
13
15
13
12
14
10
16
23
22
6

Maintenance/Troubleshooting
© Rice Lake Weighing Systems ● All Rights Reserved 13
Item Part No. Description Qty.
1 14920 Screw, Overload Protection, 8 -32UNC x 1/4, SS 1
2 35128 Foot, 1/4 - 20 NC x 1 3/16 SS 4
3 14645 Jam Nut, Foot 1/4 - 20, SS 4
4 19086 Bottom Subassembly, (2 lb – 30 lb, 10 in x 10 in) 1
35066 Bottom Subassembly, (30 lb – 100 lb, 12 in x 12 in) 1
5 52342 Label, Bench Scale 1
6 19091 Cover, Top, 10 x 10 SS 1
35069 Cover, Top, 12 x 12 SS 1
7 19088 Spider, Top, 10 x 10 1
35068 Spider, Top, 12 x 12 1
8 15148 Lockwasher 1/4 SS 4
9 21948 Screw, Load Cell, 1/4 - 20 x 5/8 SS 4
10 15410 Bubble Level, Plastic, 15 mm 1
11 Load Cell 1
12 15132 Lockwasher, #8, SS 1
13 14857 Pan Head Screw, 8 - 32 x 1/4 SS 1
14 15408 Rubber Grommet, 3/16 ID x 1/2 OD 1
15 16141 Cable Tie, 8" 1
16 14984 Cap Screw (2 lb-20 lb Models) 4
21947 Cap Screw (30 lb Models) 4
35199 Cap Screw (50 lb-100 lb Models) 4
17 15412 Spring, Overload (2 lb Models) 4
21945 Spring, Overload (5 lb Models) 4
15416 Spring, Overload (10 lb Models) 4
21946 Spring, Overload (20 lb Models) 4
21944 Spring, Overload (30 lb Models) 4
35086 Spring, Overload (50 lb Models) 4
35200 Spring, Overload (100 lb Models) 4
18 15149 Flat Washer, 1/4 type A, SS 4
19 14634 Nut, Nylon Insert, 1/4-20, SS 4
20 19089 Load Cell Shim, SS 1
21 15409 Plastic Wire Clamp 1
22 19090 Load Plate, (2 lb – 30 lb, 10 in x 10 in) 1
35067 Load Plate, (30 lb – 100 lb, 12 in x 12 in) 1
23 15150 Washer, Rubber 4
24 15138 Washer, #8, SS 1
25 14862 Screw, 8 - 32 x 3/8 SS 1
Table 4-3. 10 x 10 and 12 x 12 SL and SL/HE Parts List

BenchMark Series
14 Visit our website www.RiceLake.com
12" x 12" and 12" x 18" Models, Mild Steel
Figure 4-6. 12" x 12" and 12" x 18" Mild Steel Parts Illustration
Item Part No. Description Qty.
1 35128 Foot, 1/4-20 NC x 1 3/16 4
2 14645 Jam Nut, Foot 4
3 32993 Frame, Bottom, 12" X 12"1
32992 Frame, Bottom, 12" X 18"1
4 52342 Label, Bench Scale 1
5 14739 Bolt, Overload, 12" X 12"4
6 19092 Cover, Top, 12" X 12"1
19093 Cover, Top, 12" X 18"
7 26408 Bumper, Round Self Adhesive 12
8 15147 Washer, Locking, 1/4 4
9 14962 Screw Cap, 12" X 18"4
10 19089 Spacer, Load Cell 1
11 15410 Spirit Level Bubble, Plastic 1
12 Load Cell 1
13 19132 Frame, Top, 12" X 12"1
19134 Frame, Top, 12" X 18"1
14 16141 Cable Tie 1
15 15409 Plastic Wire Clamp 1
16 15418 Rubber Grommet, 3/16 X 1/2 od 1
17 14918 Overload Protection Screw, 8-32 X 1/4 1
18 19139 Square Insert Guide 8
Table 4-4. 12" x 12" and 12" x 18" Mild Steel Parts List
Top View of 12" Scale Series with cover
removed to show location of rubber pads
12
13
11
10
8
9
7
6
5
4
32
117 16
15
Section AA (Enlarged)
18
AA
14

Maintenance/Troubleshooting
© Rice Lake Weighing Systems ● All Rights Reserved 15
12" x 18" Model, Stainless Steel
Figure 4-7. 12" x 18" Stainless Steel Parts Illustration
Item Part No. Description Qty.
1 106462 Screw, Cap 1/4-20NC x 1-1/2 Hex Head SST 2
2 14634 Nut, Lock 1/4-20NC Hex SST 4
3 14645 Nut, Jam 1/4-20NC Hex SST 4
4 14862 Screw, Mach 8-32NC x 3/8Phillips Pan Head 2
5 14963 Screw, Cap 1/4-20NC x 3/4 Hex Head SST F593 4
6 15132 Washer, Lock NO 8 Type A Internal Tooth SST 1
7 15138 Washer, Plain STD #8 SST 1
8 15148 Washer, Lock 1/4 Regular Helical Spring SST 8
9 15149 Washer Plain 1/4 SST 4
10 15409 Clamp, Cable NO 8 Hole Nylon 1
11 15410 Level, Spirit Bubble 1
12 15418 Grommet, Rubber 3/16 ID x 7/16 OD 1
13 186226 Frame, Bottom Bench Scale 12 x 18 SST For RLSP4
Load Cell (Goes with 186224)
1
14 186225 Frame, Top Bench Scale 12 x 18 SST For RLSP4
Load Cell (Goes with 186224)
1
15 186936 Top Cover SS Bench Scale 1
16 26408 Bumper, Self Adhesive 3/4 DIA 14
17 35088 Screw, Cap 1/4-20NCX1 Hex 4
18 35128 Foot Bench Scale 1/4-20 x 1-3/16 SST USDA
Approved
4
19 35199 Cap Screw 1/4-20NC x 2 Hex Head SST 2
20 43203 Screw, Set 8-32NC x 1/2 SST 1
21 52342 Label, 4.00 x 1.25 8000T 1
22 52383 Shim, Load Cell 0.25 x 1 x 1.34 SST 2
23 40962 Load Cell 1
Table 4-5. 12" x 18" Stainless Steel Parts List
3
18
13
8
5
15
11
20
22
21
14
12
16
23
10
7
4
6
1
2
9
17
19

BenchMark Series
16 Visit our website www.RiceLake.com
18" x 18", 18" x 24" and 24" x 24" Models, Mild and Stainless Steel
Figure 4-8. 18" x 18", 18" x 24" and 24" x 24" Models Parts Illustration
Item Part No. Description Qty.
1 19141 Foot, 3/8-16 X 78 4
2 14649 Jam Nut, Foot MS 4
14653 Jam Nut, Foot SS 4
3 49766 Frame Bottom, 18" X 18", MS (RL1260/PMW16 Load Cell) 1
49768 Frame Bottom, 18" X 18", SS (RL1260/PMW16 Load Cell) 1
49770 Frame Bottom, 18" X 24", MS (RL1260/PMW16 Load Cell) 1
49772 Frame Bottom, 18" X 24", SS (RL1260/PMW16 Load Cell) 1
49774 Frame Bottom, 24" X 24", MS (RL1260/PMW16 Load Cell) 1
49776 Frame Bottom, 24" X 24", SS (RL1260/PMW16 Load Cell) 1
19108 Frame Bottom, 18" X 18", MS (RL1250 Load Cell) 1
19109 Frame Bottom, 18" X 18", SS (RL1250 Load Cell) 1
19110 Frame Bottom, 18" X 24", MS (RL1250 Load Cell) 1
19111 Frame Bottom, 18" X 24", SS (RL1250 Load Cell) 1
19112 Frame Bottom, 24" X 24", MS (RL1250 Load Cell) 1
19114 Frame Bottom, 24" X 24", SS (RL1250 Load Cell) 1
4 52342 Label Roll, 4" X 1.25"1
5 14742 Bolt, 3/8-16 NC X 1, Hex Head 4
6 19094 Cover, Top, 18" X 18"1
19095 Cover, Top, 18" X 24"1
19096 Cover, Top, 24" X 24"1
7 26407 Bumper, Self Adhesive 20
8 15153 Washer, Lock, 5/16 Regular, MS 8
15154 Washer, Lock, 5/16 Regular, SS 8
Table 4-6. 18" x 18", 18" x 24" and 24" x 24" Models Parts List
13
14161718201
2
3
4
5
6
710 19 11
15
8
9
12
19
21
22
23
7