Rice Lake Washdown User Manual

RoughDeck

*utilizes economical junction box

Low Profile Floor Scale

SS, HE, HP*, HP-H*, HC* and ALTRALITE*

Installation Manual

®

16960 Rev B

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 Model Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Operating Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.0 Installation ...................................................................................................................................... 5

2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2 Site Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4.1 Installing and Adjusting Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4.2 Mounting Plate Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.5 Electrical Interface to the Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.6 Pit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.7 Access Ramps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.0 Adjustments and Calibration ........................................................................................................ 11

3.1 Mechanical Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Corner Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.0 Service information ...................................................................................................................... 13

4.1 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3 Load Cell Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3.1 Load Cell Wiring to the Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.4 Replacement Parts List and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.4.1 Pit Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.4.2 Access Ramps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.4.3 Replacement Parts List and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

RoughDeck Limited Warranty................................................................................................................... 19

For More Information ................................................................................................................................ 20

© Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.

Rice Lake Weighing Systems is an ISO 9001 registered company.

Specifications subject to change without notice.

November 18, 2014

Contents i

ii RoughDeck

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

1.0 Introduction

The RoughDeck® Floor Scales are fully electronic, low profile load receivers. The RoughDeck is available in sizes
from 30 in x 30 in (.76 m x .76 m) to 96 in x 120 in (2.44 m x 3.05 m), and capacities from 2K- to 30K-lbs
(1000–15000 Kg). The RoughDeck comes in several ve rsions, including the stainless steel HE model designed for
harsh washdown environments.

All models use four corner-mounted, FM-approved load cells, with the cells recessed into the frame channels for
protection. A signal-trim summing board for any necessary corner corrections is enclosed in a junction box
mounted on a slide-out tray for easy access. The stainless steel models use a stainless steel NEMA Type 4X
junction box. Mild steel models feature the same board housed in a standard plastic junction box. All models come
pre-trimmed, and corner corrections should not be necessary.

Load cell cables are enclosed in conduit through the main channels, and held down with replaceable cable ties near
each corner, eliminating the possibility of cable damage in portable applications. Also useful for portable
applications are threaded corner holes in the deck for removable eye bolts to allow lifting the scale from above with
chains. Because of the possibility of foot and load cell damage from forklift tines, the scale should always be lifted
from above with chains through the eye bolts.

The adjustable feet are used to allow leveling the scale to make up for minor floor irregularities. For permanent
installations, two of the four feet can be held in place on the floor with optional floor mounting plates to guard
against deck movement.

Other available options include custom frames for pit installations, and access ramps for all sizes and models of the
RoughDeck. Decks designed for use in pits can be ordered with holes drilled in the deck directly above each foot
for adjusting foot height with a screwdriver from above.
optional equipment part numbers.

See Section 4.4 on page 15 for replacement part and

Introduction 1

1.1 Safety

Important

CAUTION

WARNING

DANGER

WARNING

Safety Symbol Definitions

Indicates an imminently hazardous situation that, if not avoided, will result in death or serious
injury.

Indicates a potentially hazar
death, and includes hazards that are exposed when guards are removed.

Indicates a potentially hazardous situation that, if not
injury.

Indicates information about proced
equipment or corruption to and loss of data.

dous situation that, if not avoided could result in serious injury or

avoided may result in minor or moderate

ures that, if not observed, could result in damage to

General Safety

Do not operate or work on this equipment unless you have read and understand the
instructions and warnings in this manual. 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. Proper care is your responsibility.

Before attempting to operate this unit, make sure every individual who operates or works with this unit has
read and understands the following safety information.

Failure to heed may result in serious injury of death.
DO NOT allow minors (children) or inexpe
DO NOT operate without all shields and guards in place.
DO NOT jump on the scale.
DO NOT use for purposes other
DO NOT place fingers into slots or p
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.
DO NOT use near water.
Before opening the unit, ensure the power cord is disconnected from the outlet.
Keep hands, feet and loose clothing away from moving parts.

then weight taking.

rienced persons to operate this unit.

ossible pinch points.

2 RoughDeck Low Profile Floor Scale

1.2 Model Designations

The model identification plate is located on the side of the frame next to the slide-out junction box tray. Include
both model number and serial number when ordering replaceme nt parts.

The following model designations are used to describe the different scale versions:

• HP — Mild steel, high precision, NTEP-certified as “legal-for-trade” and FM-approved load cells.

• HP-H — 20K- and 30K-lb capacity HP models.

• SS — Non-washdown stainless steel, NTEP-certified model, for dry chemical and corrosive environments.

• HE — Washdown stainless steel, external mounted, NTEP-certified model with hermetically-sealed load

cells and NEMA 4X J-box for hostile environments.

1.3 Operating Requirements

Electrical Grounding

For systems where the scale is connected to a 115 VAC circuit, the indicator must be directly connected to an earth
ground with a ground interface cable of no more than 3 resistanc e throughout its length.

Load Cell Excitation

Rated Excitation: 10 VDC, Maximum Excitation: 15 VDC

Grade Level Requirements

The supporting surface for the four feet of the scale must be level within 1/4 in. of horizontal.

Safe Static Overloading Capacity

Maximum: 150% of scale capacity

Nominal Scale Height

2K–10K lb (1000–5000 Kg) models: 3.5 in (89 mm)
20K lb (10000 Kg) models: 4.0 in (102 mm)
30K lb (15000 Kg) models: 5.0 in (127 mm)

Introduction 3

2.0 Installation

Important

Important

2.1 Overview

Standard installation of the RoughDeck floor scale consists of the following steps:

1. Select a site

2. Check levelness and smoothness of site

3. Unpack scale

4. Adjust the four feet on the scale

5. Install mounting plates to the floor

6. Connect cable from junction box to indicator

7.

Calibrate the unit

Pit installations and access ramps are described in Section 2.6 and Section 2.7.

2.2 Site Preparation

Location

The scale must not be loaded beyond its capacity, even momentarily.

• Select a site where overweight loads can maneuver easily without crossing the platform.

• Avoid areas where damage could occur from side impacts of wheels or forklift tines.

• Avoid areas where falling objects could cause

• Avoid areas where water may damage a scale not

• T he scale must be level within 1/4 inch. Choose a site where the floor is level
excessive shimming. The floor may require modification if unable to select and area up to standard.

shock damage.

meant for a washdown environment.

to this standard to avoid

Cabling

The interface cable between the scale and the indicator must be protected against crushing, cutting, or moisture
da

mage.

If the chosen site has such potential dangers, some method of protection, such as running the
cable in conduit, will be required.

4 RoughDeck Low Profile Floor Scale

2.3 Unpacking

Large Platform

(Larger then 5

’

x 5’, and /or more than 10,000lb capacity)

Use two 3/4” eye bolts, insert into threaded holes in

opposite corners of top plate for lifting.

Small Platform

(5

’

x 5’ or smaller and/or 10,000lb or less capacity)

Use one 1/2” eye bolt, insert into threaded hole in

center of top plate for lifting.

WARNING

Important

Remove all packing material and inspect scale for visible damage caused during shipment.
All Rough

when lifting the scale with chains or using a spreader bar.

Deck models have threaded holes in the deck to allow installation of eye bolts with shoulders for use

Lift the scale only with a properly designed spreader bar as shown in Figure 2-1.
Lifting force must be vertical to avoid bending the eye bolts.



Eye bolts must always be inserted into the top of the scale.
the top plate facing up and the eye bolts securely attached through the nuts welded to the
bottom side of the top plate. Lifting from the bottom of the plate could cause nuts to break
loose and the scale to fall.

Figure 2-1. Proper Liftin g Technique

Lifting should always occur with

2.4 Assembly

The following sections describe the assembly of the various component parts of the RoughDeck scale.

2.4.1 Installing and Adjusting Feet

For load cell protection during shipping, the scale feet are shipped detached from the load cells. The feet are
secured to the bottom of the shipping pallet along with the load cell cable, strain relief fitting, and product
literature.

1. Remove all parts from the envelope.

2. Screw one foot into each load cell and turn
underside of the deck.

3. Unscrew each foot three complete turns.

4. Place a spirit level on the deck.

5. Adjust any corners that do not contact the floor
contact the floor surface.

6. When all feet are in contact with the floor, check the deck with the spirit
1/4 inch of level.

all the way in until the foot touches either the load cell or the

by unscrewing the feet on those corners until they just

level to be sure the scale is within

Installation 5

2.4.2 Mounting Plate Installation

3.50" (2K – 20K models); 4.50" (30K)

.562" DIA (2K–10K models)
.812" DIA (20K & 30K

MOUNTING PLATE

SCALE DECK

FOOT

For permanent applications, the scale should be secured to the floor to prevent sideways movement. Two mounting
plates, with holes that slightly exceed the foot diameter, are available as an option for that purpose.

Lift the scale so that the feet are appro
opposed feet. Lower the scale back to the floor, and position the plates as shown in Figure 2-2 so that the boltdown
holes are accessible from above.

Using the mounting plates as templates, drill pilot holes into the floor for suitable anchor bolts. Bolt th

1

the floor using

/2-in anchor bolts (3/4-in bolts for 20K and 30K-lb capacity scales). Recheck foot adjustment and

deck level after this operation.
For installations using access ramps, mounting plates are not necessary as the ramps have built-in mounting plates

to se

cure the scale feet

ximately one inch off the floor. Slide mounting plates under two diagonally

e plates to

Figure 2-2. Mounting Plate Installation

2.5 Electrical Interface to the Indicator

Twenty feet of 6-wire cable to connect the scale to the weight indicator is supplied with eac h scale.

NEMA 4X

If your scale uses the NEMA 4X junction box, push one end of this
relief bushing hole in the tray. Connect the wires to the INDICATO R terminal (shaded area of Figure 2-3) as shown
in the load cell specifications. Pull out excess and tighten

the strain relief bushing to hold the cable snugly.

Standard Junction Box

If using the standard junction box, put the

cable through the hole in the junction box tray. Slide the two parts of the
strain relief flex fitting onto the cable with the threaded piece inside the faceplate and the flexible spiral portion to
the outside. Push the cable end into the junction box and connect the wires to the INDICATOR terminal. Pull out
excess cable and tighten the two parts of the strain relief flex fitting to hold the cable snugly.

cable into the junction box through the strain

6 RoughDeck Low Profile Floor Scale

CELL 1

CELL 4

CELL 2

CELL 3

INDICATOR

+EX

–EX

+SI

–SI

100 K

+SE

–SE

+EX

+EX

+EX

+EX

–EX

–EX

–EX

–EX

+SI

+SI

+SI

+SI

–SI

–SI

–SI

–SI

SHD

SHD

SHD

SHD

23126
Rev. A

SHD

JU1

JU2

JU3

JU4

100 K

100 K

100 K

The cable must be routed to the indicator in a manner that will protect the cable from damage. Two methods of

LOAD CELL CABLE

STEEL COVER

FLOOR

SCREW

LOAD CELL CABLE

STEEL COVER

Strain Relief
Flex Fitting

Figure 2-5. Standard Junction Box

Note

cable protection in non-washdown applications are shown in Figure 2-4. When planning cable routing with either
of these two methods, leave a loose coil of excess cable under
servicing or cleaning.

When the interface cable is protected and in its final
position, complete connections to

See indicator installation manual for wiring
information.

1. If necessary, trim corners as described in

2. Check all strain relief fittings for tightness.

3. Screw on the junction box cover.

4. Slide the junction box tray into the cutout.

5. Secure it with the two #10 x 3/8" screws

Figure 2-3. Junction Box Indicator Terminal

the scale to facilitate future lifting of the scale for

Figure 2-4. Cable Protection

In washdown applications, we recommend removing the junction box entirely from the floor
platform and mounting it externally on a wall or in some other protected location.

the indicator.

Section 3.2.

pro

vided.

Installation 7

2.6 Pit Installation

COVER PLATE

1:24 SLOPE

LOAD CELL

CUP

FOOT ASSEMBLY

GROUT

Note

All RoughDeck models can be installed in a shallow pit using the optional RoughDeck Pit Frame. Optional
height-adjustment holes are available. The following site considerations and pit frame drawings are meant only as
a brief overview of the principles involved with mounting the scale in a floor-level pit. The pit must be installed in
a suitable poured-concrete foundation according to standard construction practices.

Figure 2-6. Heavy Capacity Pit Frame (Top View)

Site Considerations

Debris, floor sweepings, or material spills may accumulate i

n the pit and interfere with scale operation, periodically

clean the pit. All RoughDeck models have threaded holes for eye bolts so the scale can be easily lifted from the pit.
Weight overloads, even momentary ones such as driving a loade

d forklift over a scale corner, will damage load

cells. Plan the pit location away from main traffic areas to prevent accidental damaging overloads.
In washdown applications using HE models, the pit floor must slope to a

center drain with sump or sewer

connections.
A 1:24 slope is recommended for the

pit, with full grouting under the corner pads as shown in Figure 2-7.

Corner pads must be fully grouted.

8 RoughDeck Low Profile Floor Scale

Figure 2-7. Heavy Capacity

2.7 Access Ramps

Longitudinal axis

of load cells

Access for RoughDeck floor scales are designed to bolt to the floor, with built-in mounting plates that attach to the
scale feet. When used with access ramps, side movement of the scale is automatically eliminated, and no other
mounting plates are necessary.

Access ramps can only be attached to the scale on one of the tw
longitudinal axis of the load cells. For example, the scale shown in Figure 2-8 could have an access ramp on the left
side, and/or on the right side. The top and bottom sides, however

o scale sides that are perpendicular to the

, will not accept the ramp mounting plates.

Figure 2-8. Optional Access Ramps

See Table 4-2 and Table 4-3 on page 16 for information about available access ramps.

Installation 9

3.0 Adjustments and Calibration

Important

CELL 1

CELL 4

CELL 2

CELL 3

INDICATOR

+EX

–EX

+SI

–SI

100 K

+SE

–SE

+EX

+EX

+EX

+EX

–EX

–EX

–EX

–EX

+SI

+SI

+SI

+SI

–SI

–SI

–SI

–SI

SHD

SHD

SHD

SHD

23126
Rev. A

SHD

JU1

JU2

JU3

JU4

100 K

100 K

100 K

3.1 Mechanical Adjustments

To accommodate minor floor unevenness, scale fee t can be used to adjust scale height up or dow n a fraction of an
inch.

No jam nuts are supplied for locking the feet, as there is a s
However, if the application being used requires jam nuts to secure the feet, they may be added. The feet will have
to be unscrewed beyond the minimum height to allow room for the jam nuts between the foot pads and the load
cells.

Adjust the Feet

1. Lift the scale corner slightly with a pry ba

r at the foot that needs adjustment.

2. Turn the foot until it is contacting the floor

3. Repeat as needed until all feet are contacting t

4. When height adjustments are co mplete,

recheck level of the deck with a spirit level. The deck must be level

within 1/4".

When adjusting scale feet, use care to prevent scale foot from bottoming out against the
underside of the load cell. Also, the foot stem may be damaged by bending or stripping
threads if extended beyond the maximum height adjustment.

3.2 Corner Corrections

To calibrate the scale, the output from each load cell must be matched by adjusting the signals with potentiometers
at the junction box, a process known as trimming.

All assembled RoughDeck scales are delivered with th
necessary after replacing a load cell.

The indicator must be connected and calibrated
A test weight will be required, recommended test weight for all RoughDeck models is 25% of scale capacity.

ample: 500 lbs for 2K-lb models, 5000 lbs for 20K-lb models.

Ex

1. Remove the junction box cover and identify the correct
(labeled CELL 1, CELL 2, and so on). See Figure 4-4 on page 14 for scale deck corner numbering.

2. With no weight on the scale, zero the indicator.

3. Turn all four potentiometers (shaded areas of Figure 3-1) to increase the reading until a clicking sound is
heard from each potentiometer

. This ensures the maximum signal from each load cell.

4. Place the test weight over one corner and rec

5. Repeat the process for each of the other
used as a reference point and will not be trimmed.

approximately, it does not need to indicate the exact weight va lue.

three corners. The load cell with the lowest corner reading will be

light decrease in accuracy when jam nuts are tightened.

he floor equally.

e junction box corner-trimmed. Corner trimming is only

load cell terminal corresponding to each corner

ord the indicated weight.

10 RoughDeck Low Profile Floor Scale

Figure 3-1. Trim Potentiometers

6. Place the test weight over one of the other three corners and use that load cell’s potentiometer to adjust the
load cell output down to the reference cell output.

7. Repeat this procedure with the other two high corners.

Adjustments are somewhat interactive, and adjusting the three higher outputs may affect the reference cell output,
especially in smaller scale decks. Rezero the indicator and repeat the test until all corners read within ±.1% of the
test weight used.

3.3 Calibration Procedure

Refer to the indicator manual to determine correct calibration procedures.
It is recommended that the scale be exercised before calibration to be certain that everything is seated.

1. Load the scale to near capacity two or three times.

2. With no load on the scale, place the indicator in its calibration mode and perform a zero calibration.

3. Place test weights on the platform equal to 70% - 80% of the scale’s capacity. If several weights are used,
they should be evenly distributed around the platform.

4. Perform a span calibration.

5. Remove the test weights and check the zero reading.

6. Repeat the calibration process if necessary.

Adjustments and Calibration 11

4.0 Service information

Important

Overload Stops on
HC Models only

Figure 4-1. Load Cell Assembly

4.1 Troubleshooting Guide

System Does not Operate—no Display

• Power disconnected: Check

• Indicator fuse blown. Replace

• Interface cable cut or disconnected: Repair

• Signal leads incorrectly installed at indicator: Install accor

Display Stays at Zero

• Indicator faulty: Ser

• Load cell connections faulty: Ch

Erratic Weighs

vice indicator

and reconnect.

fuse. Check for cause.

.

eck cable connections in junction box and at indicator

ding to indicator installation manual

• Vibration near scale: Rem

• Platform not level to within

• Load cell or cable water damage: Replace.

• Debris under load cells or platform: Clean.

• Indicator faulty: Use simulator to test

Consistently High or Low Weights

• Indicator not properly adjusted to zero: Zer

• Platform binding: Obtain ade

• Indicator not calibrated: Calibrate accor

• Load cells faulty: T

• Feet touching deck underside: Adjust fe

ove source of vibration or move scale.

1

/4 in: Level scale by adjusting feet or shimming if necessary.

indicator for stability. Service indicator.

o the indicator according to indicator manual.

quate clearance for free platform movement.

ding to indicator manual and Section 3.3 on page 11.

est and replace load cells if necessary.

et downward to provide clearance.

4.2 Periodic Maintenance

The space between the platform side and pit frame, and the surface beneath the platform must be periodically
cleaned to prevent debris build up. More frequent cleaning of these areas is necessary with scales mounted in pits.

Do not attempt to use scales with load cells that are not hermetically sealed in washdown
applications. Water damage is a common cause of failure in non-hermetically-sealed load cells

Use care with high pressure steam washdowns for hermetically-sealed load cells. The steam may not damage the
load cells, but the elevated temperatures may cause incorrect readings until the unit cools to room temperature.

4.3 Load Cell Replacement

Remove Load Cell

1. Lift scale with chains and proper spreader bar, see Section 2.4 on
page 5.

2. Remove defective load cell

3. Remove foot from load cell.

4. Disconnect load cell cable from junction box and cut cable ties.

5. When the cable is freed, pull cable out of the scale frame
channels

12 RoughDeck Low Profile Floor Scale

.

Install Load Cell

CELL 4

CELL 3CELL 2

CELL 1

1 4

2 3

Note

Note

For Canadian HC models, overload stops should be loosened two full turns before installing new load cells. To
reset overload stops after load cell installation, place a weight equal to 25% of the load cell capacity on the affected
scale corner. Screw in the ov erload stop until the indicator reading changes. Then back off the overload stop 1/6
turn. Repeat for each corner where the load cell has been changed.

1. Set the new load cells near the corne

2. Thread the cable from each load cell through the conduit

rs where they are to be installed.

tubing in the frame to the junction box according

to the wiring diagram in Figure 4-2.

Figure 4-2 shows both the scale and the junction box as viewed from the bottom. To verify correct
load cell/junction box terminal matching, see the numbers on the terminals inside the junction box
and the corner numbering diagram in Figure on page 14.

Figure 4-2. Bottom View of Scale (with Plastic Junction Box)

3. Check that the threaded holes for the load cell screws are free of debris, use compressed air to blow out
holes if necessary.

4. Position load cells with alignment arrows point

ing up toward the deck and loosely install the hex head cap

screws provided, as shown in Figure 4-3.

If the base is used with a pit frame or access ramp, position the load cell to maintain the dimension
shown in Figure 4-3.

5. With the torque wrench, tighten all bolts as follows:

• 2K- 10K - lb capacities:

Torque to 75 ft-lbs.

• 20K-lb and 30K-lb capacities: Torque to 250 ft-lbs.

Service information 13

2K – 10K models: 1.625"
20K models: 2.16"
30K models: 1.66"

Figure 4-3. Foot Pad - Side View

4

3

Figure 4-4. Corner Numbering - Top View

Note

6. Route the load cell cables near each corner so that the cable is free from possible contact with each foot.

7. Hold the cable in position with the adhesi

8. Do not
the coils into the channel near the junction box.

9. Pass each individual end of load cell cable through its gromme
fittings in the NEMA 4X junction box).

10. Corner correction trimming and calibration is
Section 3.2 and Section 3.3 on page 11.

cut load cell cables. Coil extra cable before it enters the junction box, tie with cable ties, and insert

ve-backed cable ties supplied in the hardware kit.

t in the junction box cover (or through cable

necessary after load cell replacement. Follow instructions in

4.3.1 Load Cell Wiring to the Junction Box

The four load cells are each wired to their respective terminals in
the junction box according to the corner numbering system shown
in Figure 3, and the coloring code in t

When using the NEMA 4X stainless steel junc
relief hubs,

1. Pull excess cable out of the junction box enclosure.

2. Tighten the strain relief hu
To be watertight, the hubs must be tightened to the point
where the
hub.

3. Pull on each of the four cables to make sure that do not
slip.

See load cell specifications for proper color code wiring information.

rubber sleeving begins to protrude out of the

he load cell specifications.

tion box with strain

bs with a wrench.

1

2

14 RoughDeck Low Profile Floor Scale

4.4 Replacement Parts List and Accessories

The following tables list the pit frames, access ramps, and replacement part numbers for HP, HC, HE, SS, and
HP-H model RoughDeck floor scales.

4.4.1 Pit Frames

Table 4-1 shows the pit frames available for RoughDeck floor scales.

Platform Size Pit Frame for Model

ft m HP/HC HE/SS HP-H 20K HP-H 30K

2.5 x 2.5 .76 x .76 18757 18758

3 x 3 .92 x .92 18759 18760

4 x 4 1.22 x 1.22 18761 18762 39595 39608

4 x 5 1.22 x 1.53 18765 18766 39596 39609

4 x 6 1.22 x 1.83 18767 18768 39597 39610

4 x 7 1.22 x 2.13 39598 39611

5 x 5 1.53 x 1.53 18763 18764 39599 39612

5 x 6 1.53 x 1.83 18769 18770 39600

5 x 7 1.53 x 2.13 18771 18772 39601 39614

6 x 6 1.83 x 1.83 39602 39615

6 x 8 1.83 x 2.44 39604

7 x 9 2.13 x 2.74 39605

7 x 10 2.13 x 3.05 39606 39619

8 x 10 2.44 x 3.05 39607 39620

Table 4-1. RoughDeck Pit Frames

4.4.2 Access Ramps

Table 4-2 shows the standard access ramps available for 2K-10K lb capacity RoughDeck scales.

Ramp Width x Ramp Approach Length x Ramp Height Access Ramp for Model

ft x ft x inch m x m x mm HP/HC HE/SS

2.5 x 3 x 3.5 .76 x .92 x 89 18779 18780

3 x 3 x 3.5 .92 x .92 x 89 18781 18782

4 x 3 x 3.5 1.22 x .92 x 89 18783 18784

5 x 3 x 3.5 1.53 x .92 x 89 18785 18786

2.5 x 4 x 3.5 .76 x 1.22 x 89 18789 18790

3 x 4 x 3.5 92 x 1.22 x 89 18791 18792

4 x 4 x 3.5 1.22 x 1.22 x 89 18793 18784

5 x 4 x 3.5 1.53 x 1.22 x 89 18795 18796

Table 4-2. RoughDeck Access Ramps (2K - through 10K-lb Models)

Service information 15

Table 4-3 shows the standard access ramps available for 20K and 30K lb capacity RoughDeck scales (HP-H
models)

Ramp Width x Ramp Approach Length x Ramp

Height

ft x ft x inch m x m x mm HP-H 20K HP-H 30K

4 x 4 x 4 1.22 x 1.22 x 102 39585

5 x 4 x 4 1.52 x 1.22 x 102 39586

6 x 4 x 4 1.83 x 1.22 x 102 39587

7 x 4 x 4 2.13 x 1.22 x 102 39588

8 x 4 x 4 2.44 x 1.22 x 102 39589

4 x 5 x 5 1.22 x 1.52 x 127 39590

5 x 5 x 5 1.52 x 1.52 x 127 39591

6 x 5 x 5 1.83 x 1.52 x 127 39592

7 x 5 x 5 2.13 x 1.52 x 127 39593

8 x 5 x 5 2.44 x 1.52 x 127 39594

Access Ramp for Model

Table 4-3. RoughDeck Access Ramps (20K - 30K-lb Models)

16 RoughDeck Low Profile Floor Scale

4.4.3 Replacement Parts List and Accessories

Stainless Steel
Junction Box

Standard Plastic
Junction Box

5

4

7

15

14

1

6

3

2

8

9

10

11

12

13

Item No. Part No. Description

1 21172

21173

Junction box, standard plastic - 4 channel,
Junction box, NEMA 4X - 4 channel, signal trim (SS and HE models)

2 26087 Strain relief flex fitting (H

P/HP-H - H/HC models)

signal trim (HP/HP-H - H/HC models)

3 15611 Cable, 6-wire, deck to indicator
4 26320 Junction box tray (HP/HP-H - H/HC models)
5 14876 Junction box tray screw (H

15377

Rubber grommet, load cell cable (HP/HP-H/HC models)
Rubber grommet, deck t

6 14908 Junction box tray screw (SS and
7 15398

8 15658 Cable tie mount, 1” square

P/HP - H/HC models)

HE models)

o indicator cable (HP/HP-H-H/HC models)

9 15631 Cable ties, 3”

10 15071

15075
40337

11 18756

39021
39022

12 Consult factory for

r

eplacement parts

13 18777

18778
40387
40388

14 15051 Overload stops (HC Canadian le

Load cell screw, (HP/HC models)
Load cell screw, (SS and HE models)
Load cell screw, (HP-H model)

Foot assembly (HP/HC,

SS and HE models)
Foot assembly (20K HP-H model)
Foot assembly (30K HP

-H model)

Load cells

Mounting plate, HP and HC
Mounting plate, SS and HE models, set of
Mounting plate, 20K HP-H models, set of

models, set of two plates (optional)

two plates (optional)

two plates (optional)

Mounting plate, 30K HP-H models, set of two plates (optional)

gal-for-trade models only)

15 15410 Bubble level (HC Canadian legal-for-trade models only)

Table 4-4. Replacement Parts List

Service information 17

RoughDeck Limited Warranty

Rice Lake Weighing Systems (RLWS) warrants that all RLWS equipment and systems properly installed by a
Distributor or Original Equipment Manufacturer (OEM) will operate per written specifications as confirmed by the
Distributor/OEM and accepted by RLWS. RoughDeck fabricated platforms and weldments are warranted against
defects in materials and workmanship for five (5) years. Load cells and all other components are warranted for two
(2) years.

RLWS warrants that the equipment sold hereunder will conform to the current written specifications authorized by
RLWS. RLWS warrants the equipment against faulty workmanship and defective materials. If any equipment fails
to conform to these warranties, RLWS will, at its option, repair or replace such goods returned within the warranty
period subject to the following conditions:

• Upon discovery by Buyer of such nonconformity, RLWS will be given prompt written notice with a
detailed explanation of the alleged deficiencies.

• Individual electronic components returned to RLWS for warranty purposes must be packaged to prevent
electrostatic discharge (ESD) damage in shipment. Packaging requirements are listed in a publication,
“Protecting Your Components From Static Damage in Shipment,” available from RLWS Equipment
Return Department.

• Examination of such equipment by RLWS confirms that the nonconformity actually exists, and was not
caused by accident, misuse, neglect, alteration, improper installation, improper repair or improper testing;
RLWS shall be the sole judge of all alleged no n-conformities.

• Such eq uipment has not been modified, altered, or changed by any person other than RLWS or its duly authorized repair

agents.

• RLWS will have a reasonable time to repair or replace the defective equipment. Buyer is responsible for
shipping charges both ways.

• In no event will RLWS be responsible for travel time or on-location repairs, including assembly or
disassembly of equipment, nor will RLWS be liable for the cost of any repairs made by others.

THESE WARRANTIES EXCLUDE ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WITHOUT

LIMITATION WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. NEITHER RLWS
NOR DISTRIBUTOR WILL, IN ANY EVENT, BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.

RLWS AND BUYER AGREE THAT RLWS’ SOLE AND EXCLUSIVE LIABILITY HEREUNDER IS LIMITED TO REPAIR

OR REPLACEMENT OF SUCH GOODS. IN ACCEPTING THIS WARRANTY, THE BUYER WAIVES ANY AND ALL OTHER
CLAIMS TO WARRANTY.

SHOULD THE SELLER BE OTHER THAN RLWS, THE BUYER AGREES TO LOOK ONLY TO THE SELLER FOR

WARRANTY CLAIMS.

No terms, conditions, understanding, or agreements purporting to modify the terms of this warranty shall have any
legal effect unless made in writing and signed by a corporate officer of RLWS and the Buyer.

© Rice Lake Weighing Systems, Inc. Rice Lake, WI USA. All Rights Reserved.

RICE LAKE WEIGHING SYSTEMS • 230 WEST COLEMAN STREET • RICE LAKE, WISCONSIN 54868 • USA

18 RoughDeck Low Profile Floor Scale

For More Information

Contact Information

Hours of Operation

Knowledgeable customer service representatives are available 6:30 a.m. - 6:30 p.m. Monday through Friday and 8
a.m. to 12 noon on Saturday. (CST)

Telephone

• S ales/Technical Support 800-472-6703

• Canadian and Mexican Customers 800-321-6703

• International 715-234-9171

Immediate/Emergency Service

For immediate assistance call toll-free 1-800-472-6703 (Canadian and Mexican customers please call
1-800-321-6703). If you are calling after standard business hours and have an urgent scale outage or emergency,
press 1 to reach on-call personnel.

Fax

Fax Number 715-234-6967

E-mail

US sales and product information at

[e-mail]

International (non-US) sales and product information at

[e-mail]

Mailing Address

Rice Lake Weighing Systems
230 West Coleman Street
Rice Lake, WI 54868 USA

Service information 19

20 RoughDeck Low Profile Floor Scale

230 W. Coleman St. • Rice Lake, WI 54868 • USA

U.S. 800-472-6703 • Canada/Mexico 800-321-6703 • International 715-234-9171 • Europe [phone]

www.ricelake.com www.ricelake.mx www.ricelake.eu www.ricelake.co.in m.ricelake.com

© Rice Lake Weighing Systems 11/2014 PN 16960 Rev A