Tektronix K420 Instructions Manual

Instructions

K420

Bench Cart

070-8845-04

*P070884504*

070884504

www.tektronix.com

suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes

that in all previously published material. Specifications and price change privileges reserved.

TEKT RONIX and TEK are re gistered tra demarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc.

14200 SW Karl Braun Drive

P.O. Box 500

Beaverton, OR 97077

USA

For product information, sales, service, and technical support:

H In North America, call 1-800-833-9200.

H Worldwide, visit www. tektronix.com to find contacts in your area.

WARRANTY

Tektronix warrants that the products that it manufactures and sells will be free from defects i n ma terials and workmanship

for a period of one (1) year from the date of shipment. If a product proves defective during this warranty period, Tektronix,

at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in

exchange for the defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the

warranty peri od and make suita ble arrangements for the performance of service. Custome r shall be responsible for

packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid.

Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the

Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any

other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate

maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting

from attempts by personnel other than Tekt ronix representatives to install, repair or service the product; b) to repair

damage resulting from improper use or connection to incompatible equipme nt; c) to repair any damage or malfunction

caused by the use of non--Tektronix supplies; or d) to service a product that has been modified or integrated with other

products when the effect of such modification or integration inc reases the time or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED.

TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR

FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE

DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR

BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT ,

SPECIAL, INCIDENT AL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE

VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

K420 Bench Cart Instructions

i

Table of Contents

General Safety Summary ii...................................

Contacting Tektronix iii.............................................

Introduction 1..............................................

Tools 1....................................................

Parts Iden tification 1........................................

Base Assembly 5............................................

Drawer Shelf and Drawer 11...................................

Tilt Shelf 15.................................................

Leg Caps 20.................................................

Nylon Straps 21..............................................

Customization 22............................................

Replaceable Parts 23..........................................

Specifications 24.............................................

25...................................

List of Figures

Figure 1: Identification of S mall Parts 2........................

Figure 2: The K420 Bench Cart 4..............................

Figure 3: Preparing the Strut for Base Assembly 6................

Figure 4: Building Leg Assemblies 7...........................

Figure 4a: Aligning the Leg Assemblies and the Strut 8............

Figure 5: Installing the Casters 9..............................

Figure 6: Preparing the Drawer Sh elf 11.........................

Figure 7: Aligning the Drawer Shelf 12..........................

Figure 8: Installing the Drawer 13..............................

Figure 9: Installing the Press --Stud Retainers 14...................

Figure 10: Preparing the Long Rails 15..........................

Figure 11: Long Rail Alignment Marks on the L eg Assemblies 16....

Figure 12: Preparing the Tilt Shelf with Handle 17................

Figure 13: Aligning the Tilt Sh elf with Handle 17..................

Figure 14: Installation of Tilt S helf Knobs 18.....................

Figure 15: Installing the Leg Caps 20............................

Figure 16: Installing the Nylon Straps with Bu ckles 21.............

ii

K420 Bench Cart Instructions

General Safety Summary

Observe these safety precautions when using the K420 Bench Cart.

Keep the K420 Level

Keep the K420 level at all times, especially when it is loaded with instruments.

The cart is designed to be very stable, but it can fall over if tilted to extremes.

Observe this precaution especially in these cases:

H When rolling the cart across uneven floors.

H When rolling the cart through doorways with uneven thresholds.

H When lifting the cart wheels over cables.

H When rolling the cart up or down ramps.

Do Not Overload Shelves

Do not put more weight on any cart shelf than is listed in the specifications.

Load the top of the cart evenly.

Observe Electrical Safety

All parts of the cart must be treated as electrical conductors, even if they appear

to be nonconducting. Do not rely on the casters to provide insulation between the

cart and the surface it stands on. Conversely, do not rely on the casters to provide

a conductive ground path for the cart.

Test the Stability of Custom Configurations

Changes in shelf location and loading can af fect the balance of the cart. If you

arrange the shelves differently from the configuration described in this manual,

test the cart carefully for stability before using it.

K420 Bench Cart Instructions

iii

Preface

Contacting Tektronix

Phone 1-800-833-9200*

Address Tektronix, Inc.

Department or name (if known)

14200 SW Karl Braun Drive

P.O. Box 500

Beaverton, OR 97077

USA

Web site www.tektronix.com

Sales support 1-800-833-9200, select option 1*

Service support 1-800-833-9200, select option 2*

Technical support Email: techsupport@tektronix.com

1-800-833-9200, select option 3*

6:00 a.m. -- 5:00 p.m. Pacific time

* This phone number is toll free in North America. After office hours, please leave a

voice mail message.

Outside North Ameri ca, contact a Tektronix sales office or distributor; see the

Tektronix web site for a list of offices.

Preface

iv

K420 Bench Cart Instructions

1

Introduction

The Tektronix K420 Bench Cart requires some assembly. This manual tells how

to assemble and use the cart.

You can assemble the K420 Bench Cart by yourself, but it is easier if you have

another person to help you.

You will need a large flat area to assemble the cart. The area should be level and

large enough to move the various parts into place. A carpeted floor space is ideal.

Tools

You will need a 3/4 inch (19 mm) open--end wrench, or an adjustable wrench that

can be adjusted to that size.

Other tools are included with the K420 Bench Cart. These include a 5/32 inch

Allen wrench, a 3/16 Allen wrench, a 1/8 inch Allen wrench, and a circular

bubble level.

Parts Identification

The large pieces of the K420 Bench Cart are packed separately in the shipping

carton. A bag of small parts is packed in a box with these instructions. The

included tools are also packed in this bag. Figure 1 on page 2 shows the small

parts you will be using.

Table 1 on page 3 lists all the parts needed to assemble the cart, including the

large pieces and assemblies. Take an inventory now to familiarize yourself with

the parts for the assembly process.

Introduction

2

K420 Bench Cart Instructions

1/4-20 Cap Head Screw ,

1/2 inch length

1/2 inch Split Lockwasher

1/8inchAllenWrench

LongRail

WeldNut

1/4-20

Shoulder Bolt,

1/2 inch length

Oval Knob

1/8inch thick Kevlar

(plastic) Washer

1/4 inch Tooth Lockwasher

Circular BubbleLevel

Press-Stud Retainer

3/4 inch Steel Washer

Press-On

ProbeHolder

3/16 inch Allen Wrench

5/32 inch Allen Wrench

1/4-20 Set Screw

Figure 1: Identification of Small Parts

Introduction

K420 Bench Cart Instructions

3

Table 1: Parts List

Quantity Desscription

Large Parts

2 Locking Casters

2 Non--Locking Casters

1 Tilt Shelf wi th handle

1 Drawer Shelf

1 Drawer

1 Strut

2 Leg assemblies

2 Leg Caps

2 Nylon Straps with buckles

Small Parts in Bag

4 1/2 inch Split Lockwashers

8 1/4--20 Cap Head Screws, 1/2 inch length

2 1/4--20 Shoulder Bolts, 1/2 inch length

2 Oval Knobs

6 1/8 inch thick Kevlar (plastic) Washers

2 3/4 inch Steel Washers

8 1/4 inch Tooth Lockwashers

10 Weld Nuts

2 Long Rails

2 1/4--20 Set Screws

2 Press-- Stud Retainers

1 Press--On Probe Holder

Small Tool s in Bag

1 3/16 inch Allen Wrench

1 5/32 inch Allen Wrench

1 1/8 inch Allen Wrench

1 Circular Bubble Level

Introduction

4

K420 Bench Cart Instructions

Locking Caster

Non-Locking Caster

Stru t

Leg Assembly

Leg Cap

Tilt Shelf with handle

Drawer Shelf

Drawer

Front

Figure 2: The K420 Bench Cart

K420 Bench Cart Instructions

5

Base Assembly

Begin assembling the cart by joining the leg assemblies using the strut, and then

putting on the casters. You will use these parts:

H 2 Locking Casters

H 2Non--LockingCasters

H 2 Extrusions

H 2Legs

H 4 Bumpons

H 41/4--20x2inchScrews

H 4 1 inch Fender Washers

H 13/16HexKey

H 41x3inchEndCaps

H 1Strut

H 4 1/2 inch Split Lockwashers

H 4 1/4 20 Cap Head S crews, 1/2 inch length

H 4 1/4 inch Tooth Lockwashers

H 4WeldNuts

You will use a 3/4 inch (19 mm) wrench or adjustable wrench, and the 3/16 inch

Allen wrench included with your cart.

1. Prepare the strut as shown in F igure 3. P osition the weld nut with the raised

threaded flange toward the strut. Leave each screw assembly loose; do not

screw the weld nut onto the cap head screw more than one full turn.

Base Assembly

6

K420 Bench Cart Instructions

Front

WeldNut

1/4 inch Tooth Lockwasher

1/4-20 Cap Head Screw

Figure 3: Preparing t he Strut for Base Assembly

2. On each leg assembly, observe that there is a small, clear, plastic button

(bumpon) on the horizontal leg bar. This button is on the inside of the cart, at

the back. Position the leg assemblies as shown in Figure 4. Leave a space

between the leg assemblies about equal to the length of the strut.

Base Assembly

K420 Bench Cart Instructions

7

Figure 4: Building Leg Assemblies

3. Orient extrusion so the end with threaded holes is on the bottom If shelf

position pencil marks are present on one of the slotted sides of the extrusion

there should be one mark 13 inches from this end. You will build two leg

assemblies.

Base Assembly

8

K420 Bench Cart Instructions

4. Place long screw through washer and insert through bottom of leg tube (side

with large caster nuts) and into the extrusion. Screw will extend through top

of leg tube to receive threaded ends of extrusion. Hand tighten with hex key.

CAUTION. Leg tube can be crushed if screw is over tightened.

Max torque is 3--6 ft --lbs. Repeat for second assembly.

5. Apply two bumpons to the top of each leg as shown in the illustration. They

go on the side of the extrusion with pencil marks for each assembly.

6. Install end caps into end of each leg. Don’t install end caps into extrusions.

7. Position the strut horizontally between the leg assemblies, as shown in

Figure 4a, with the open side of the strut to the back. Line up the weld nuts

with the back groove in the leg assemblies.

Front

Clear plastic buttons

(oneon each leg assembly)

Figure 4a: Aligning the Leg Assemblies and the Strut

Base Assembly

K420 Bench Cart Instructions

9

8. Slide the strut down to the base of the cart, adjusting the distance between

the leg assemblies as needed. When complete, make sure the strut is resting

tight against the clear plastic buttons on the leg assemblies.

9. Use the 3/16 inch Allen wrench to tighten the cap head screws. Tighten them

first snugly, then go back and tighten them firmly.

NOTE. If you have a torque wrench available, tighten these and all shelf screws

to 60 in.... lb (6.8 N.... m) torque.

10. Tip the cart onto its back as shown in F igure 5, resting it on the work surface

by the tops and backs of the leg assemblies.

11. Identify which casters are locking and which are non-- locking. The locking

casters, which go on the front of the cart, have an extra tab that you step on

to lock the wheels.

Front

Locking

Casters

1/2inch Split

Lockwashers

Non-

Locking

Casters

Figure 5: Installing the Casters

Base Assembly

10

K420 Bench Cart Instructions

12. On the locking casters, place a 1/2 inch split lockwasher on each threaded

shaft, then install the casters into the two front holes in the bottoms of the

leg assemblies. Tighten the casters only until they are snug using the 3/4

inch (19 mm) wrench.

13. On the non--locking casters, place a 1/2 inch split lockwasher on each

threaded shaft, then install the casters into the two back holes in the bottoms

of the leg assemblies. Tighten the casters only until they are snug.

14. Return the cart to the upright position.

K420 Bench Cart Instructions

11

Drawer Shelf and Drawer

Install a drawer shelf and drawer in the cart. You will use these parts:

H 1DrawerShelf

H 1Drawer

H 4 1/4 20 Cap Head S crews, 1/2 inch length

H 4 1/4 inch Tooth Lockwashers

H 4WeldNuts

H 2 Press--Stud R etainers

You will use the 3/16 inch Allen wrench and the circular bubble level included

with your cart.

1. Prepare the drawer shelf as shown in F igure 6 by installing a cap head screw,

a tooth lockwasher, and a weld nut in each of the four side holes of the shelf.

Leave each screw assembly loose; do not screw the weld nut onto the cap

head screw more than one full turn.

Weld Nut

1/4 inch Tooth Lockwasher

1/4-20 Cap Head Screw

Figure 6: Preparing t he Drawer Shelf

Drawer Shelf and Drawer

12

K420 Bench Cart Instructions

2. Position the drawer shelf horizontally between the leg assemblies, as shown

in Figure 7. Position the shelf so the open edge is to the front of the cart.

Front

Figure 7: Aligning the Drawer Shelf

3. Slide the drawer shelf down to into the position shown in F igure 8. (A light

pencil line has been marked on the insides of the leg assemblies at this

position.) Slide the drawer shelf slowly between the leg assemblies to avoid

scratching the paint. Use the circular bubble level to make sure the shelf is

level.

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Tektronix K420 Instructions Manual

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