Tektronix K420 Instructions Manual
Instructions
K420
Bench Cart
070-8845-04
www.tektronix.com
*P070884504*
070884504
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidia ries or
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. Informat ion in this publication supercedes
that in all previously published material. Specifications a nd price c hange privileges reserved.
TEKTRONIX and TEK are registered trademarks 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 sell s will be free from defects in materials 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 period and make suitable arrangements for the performance of servic e. Customer 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 t he re turn 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 , fa ilure 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 Tektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; 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 increases 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 W ARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE
VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Table of Contents
General Safety Summary ii...................................
Contacting Tektronix iii.............................................
Introduction 1..............................................
Tools 1....................................................
Parts Identification 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 Small 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 Shelf 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 Leg Assemblies 16....
Figure 12: Preparing the Tilt Shelf with Handle 17................
Figure 13: Aligning the Tilt Shelf with Handle 17..................
Figure 14: Installation of Tilt Shelf Knobs 18.....................
Figure 15: Installing the Leg Caps 20............................
Figure 16: Installing the Nylon Straps with Buckles 21.............
K420 Bench Cart Instructions
i
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.
T est the Stability of Custom Configurations
Changes in shelf location and loading can affect 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.
ii
K420 Bench Cart Instructions
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 num ber is toll free in North America. After office hours, please leave a
voice mail message.
Outside North America, contact a Tektronix sales office or distributor; see the
Tektronix web site for a list of offices.
K420 Bench Cart Instructions
iii
Preface
iv
K420 Bench Cart Instructions
Introduction
Tools
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.
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.
K420 Bench Cart Instructions
1
Introduction
Weld Nut
1/4-20 CapHead Screw ,
1/2 inchlength
1/4 inch Tooth Lockwasher
1/2 inch Split Lockwasher
3/16 inch AllenWrench
3/4 inch Steel Washer
1/4-20
1/2 inchlength
Press-On
ProbeHolder
ShoulderBolt,
LongRail
1/4-20Set Screw
1/8inch thick Kevlar
(plastic) Washer
5/32 inch AllenW rench
Circular Bubble Level
Oval Knob
Press-Stud Retainer
1/8inchAllenWrench
Figure 1: Identification of Small Parts
2
K420 Bench Cart Instructions
Table 1: Parts List
Quantity Desscription
Large Parts
2 Locking Casters
2 Non--Locking Casters
1 Tilt Shelf with 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
Introduction
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 Tools in Bag
1 3/16 inch Allen Wrench
1 5/32 inch Allen Wrench
1 1/8 inch Allen Wrench
1 Circular Bubble Level
K420 Bench Cart Instructions
3
Introduction
Tilt Shelf with handle
Drawer Shelf
Leg Cap
Drawer
Leg Assembly
Strut
Non-Locking Caster
Front
Locking Caster
Figure 2: The K420 Bench Cart
4
K420 Bench Cart Instructions
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 Screws, 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 Figure 3. Position 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.
K420 Bench Cart Instructions
5
Base Assembly
Front
WeldNut
1/4 inch Tooth Lockwasher
1/4-20 Cap Head Screw
Figure 3: Preparing the 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.
6
K420 Bench Cart Instructions
Base Assembly
K420 Bench Cart Instructions
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.
7
Base Assembly
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.
Clearplastic buttons
(oneon each leg assembly)
Front
Figure 4a: Aligning the Leg Assemblies and the Strut
8
K420 Bench Cart Instructions
Base Assembly
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 Figure 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.
Non-
Locking
Casters
Locking
Casters
1/2 inch Split
Lockwashers
Front
K420 Bench Cart Instructions
Figure 5: Installing the Casters
9
Base Assembly
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.
10
K420 Bench Cart Instructions
Drawer Shelf and Drawer
Install a drawer shelf and drawer in the cart. Y ou will use these parts:
H 1DrawerShelf
H 1Drawer
H 4 1/4 20 Cap Head Screws, 1/2 inch length
H 4 1/4 inch Tooth Lockwashers
H 4WeldNuts
H 2 Press--Stud Retainers
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 Figure 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 the Drawer Shelf
K420 Bench Cart Instructions
11
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