Western Under-Frame Mount #65890 - 1988-96 Chevy/GMC 1500 / 2500 / 2500HD / 3500 Installation guide

Brand: Western

Model: Under-Frame Mount #65890 - 1988-96 Chevy/GMC 1500 / 2500 / 2500HD / 3500

Type: Installation guide

LIT. NO. 13760

Ocober 1, 2002

CHEVROLET IGMC

UNDER-FRAME MOUNT

INSTALLATION INSTRUCTIONS

FOR SINGLE-STAGE AND

TWO-STAGE TAILGATE SPREADERS

The under-frame mount is remmended for use on the following vehicles with an 8 foot box:-

. - 198..1996 Chevrolet I GMC ..1500 /250 /2500 HD /3500.

This mount is NOT applicabJe to trucks equippe with a short (6-1/2 foot) box.

Read and understad Installation Instructions betoreinstaIJing the under~fraß1e mount.

TABLE OF CONTENTS

SAFETY ....... .. .. .. .. .. .. . 1

Safety Defmitions " .. " .. 1

Safety Procedures . . . .. :. 1

Battry Safety. . " . .. . . . . . 1

WEIGHT RESTRICTIONS. .. .. .. .. . . . . . 2

UNDER-FRAME MOUNT

INSTALLATION. . . .. .. . . 3

Rear Brackets Installatiön . 3

Subframe Assembly . . . . 4

Subfrme Assembly Installation" " . . 4

Secondary Frame Assembly.. . 5

Mounting the Secondary Frame 5

Hopper Installation. .. . 5

ABBREVIATION KEY ............ 7

PARTS LIST " " . . . . . " " .. .. . .. .. 8

Under-Frae Mount Assembly . 8

Chevrolet / GMC Mounts . . . . . . . . . 10

Douglas Dynamics reserves the right under its product improvement procedures to change constrction or design detals and

furnish equipment when so altered without reference to illustrations or specifications used herein.

October 1 , 2002 Printed in the U.S.A. lit. No. 13760

SAFETY

Safety Definitions

Read this manual and aU spreader labels before

installing or operating the spreader.

A. .,., -, W., . .. ARNIN ,.,G: The, symbol at left

identifies a SAFETY

WARNING that indicates a

potentially hazardous situation that,

if not avoided, could result in death

or serious personal injury.

CAUTON: Indicates a situation that, if

not

"., avoided, could result in damage to product

or propert.

N, ,., ,OTE: Identies tips, helpfui hints,and

maintenance information the reader should

know.

Safety Procedures

Observe the following safety procedures before

and durig the use of the spreader.. By following

these rules and applying common sense, possible

personal injur and potential damage to the

machine may be avoided.

A ¡WARG:

. Before startng the spreader, veriy all

personnel and equipment are clea of the

spreader spray area.

¡CAUTION:

. Do not operate a spreader in need of

maintenance.

. Before operating the spreader. reassemb1e

any pars or hardware removed for

cleaning or adjusting.

. Before operating the spreader, remove

materials such as cleaning rags, brushes,

and hand tools from the spreader.

Lit. No. 13760

.N,. OTE: If the spreader obstrcts the view of

the license plate, check for any local

regulations that may apply.

NOTE: If

rear directionallbrake lights are

,,' obstrcted when mounting the sp~ader, the

lights must be relocated, or auxiliar directional

brake lights must be instaled to side of spreader

brackets.

Battery Safety

AWARNING: Follow these

.. . warins to avoid persna

injury and damage to product or

property.

. Avoid exposing battery to a spark or

flame.

. Always charge battery in a well ventilated

area.

. A void contact with battery acid.

. Ahvays disconnect battery before

removing or replacing any electrcal

components.

. Never lay anything ana battery. This

could result in electrcal shock or burns

and could cause explosions.

Octóbêr1,2002

WEIGHT RESTRICTIONS

AWARNING; The nse of

" ", ,', " under-frame or in-bed mounts

on half-ton trcks is restrcted to

, spreading only salt or calcium

chloride (max. 70 lb. per cu. ft.).

Failure to comply could result in

exceeng the payload capacity. See

Fi~ures i & 2.

AWARG: Check the

... vehcle's load rati

certification sticker for maximum

vehicle capacity and DO NOT load

beyond the vehicle GVWR or

GA WR. Overloading could result in

an accident or damage to the vehicle.

The following table gives information regarding

the Class IV receiver hitch.

"".... ~ . . ~.._u~__

MAX. GROSS MAX.

HITCH TYPE TONGUE WT

TRLR WT (LB.) (LB.)

WEI'GHT 10,000 I1000

DISTRIBUTING

WEIGHT I

CARRYING 10.00

1000

BALL MOUNT -

950 Ib

10 ft

370.51b

3.9ft3

Sand = 951b/ft3

10 ftx 951b =950 Ib

Figure J

October 1, 2002

400 Ib

10 fts

156 Ib

3.9 ft

Salt = 40 Iblft (Avg)

10 ft3 X 40 Ib = 400 lb

Figure 2

Very Coarse = 35 Iblft3

Coarse = 45 Ib/ft3

Fine = 50 Ib/ff

When tightening fastener, refer to Table I,

Torque Char for the reommended fastener

values..

5/16-18 11 18 28

3116 19 31 4$

3124 24 4$ 68

ffM4 ~ æ ~

11..13 45 75 115

9I1e.12 66 110 16$

5111 93 150 225

Metrc Grade 8.8 (Ft-Lb.)

eOI i.

M 12 60

M 14 95

2Lit. No. 13760

UNDER-FRAME MOUNT INSTAllATION

N. .. . OTE:Remove any existing trailer hitch and

otber after-market equipment which may

interfere with the installation of this product

according to these instrctions.

A WARNING: Before working

...' ,...... with th, e spreader, secure a11

loose fitting clothing and

unrestrined hair.

N...... OTE: Ins,tall all faste~ers finger tight until

assembly 1S complete. Then tighten

according to the Torque Cbar on page 2.

Rear Brackets Installalion

1. Ren10ve outboard bumper brackets by

removing two bolts from vehicle frame and

two bolts securing bracket to bumper. See

Figure 3.

Figure 3

Driver's Side Shown

2. Position rear subfrae mountig brackets to

vehicle frame and align holes.

,Position outbard bumper brackets over

sub frme mounting brackets.

Install one 1/2u x 1-3/411 grade 8 bolt and 1/2"

flat washer though the bottom hole in the

bumper bracket, subframe mounting bracket,

and vehicle frame. Retain with J/21t flat

washer and 1/2" locknut. See Figure 4.

Lit. No. 13760

Figure 4

Driver's Side Shown

3. Instal1 one 1/2" x 1-3/4" grade 8 bolt and 1I211

flat washer through upper bumper bracket

hole"thee 1/211 flat wasers (btween bumper

bracket and vehicle frame), and vehic1e

frme. Retain with a 1I2U flat ,vasher and a'

1I2u locknut. See Figure 4.

4. Insta o~e 1/2" x 2"gi:ade 5 bolt and 1/2" flat

WåshefthroughfrOIlt note iiisûbfrafe

mountig bracket and vehicle frame. Retan

with 1l2ll flat washer and 112ft locknut. See

Fìgure 4.

5. Install onginaI bumper bracket bolts in

bnmpê.r.

3October 1, 2002

UNDER-FRAME MOUNT INSTALLATION

Subframe Assembly

1. Insert receiver hitch into su bframe mounts to

furtest (narow) position and align holes.

2. InstaU two 5/811 x 4u grade 8 bolts per side

(four totaJ) and washers (one on each side of

the crosstube). See Figure 5.

Figure 5

3. Position front brackets outside of subfre

and retain with one 1/2J1 x 1-3/4" grade 5 bolt,

1I211 flat washer and 1/2" locknut. See Figure

N OTE:Drver-side bracket has a notch on top

· . · facg frnt Cnside bracket has a bevel

on top facing front.

Figure 6

October 1, 2002

Subframe Assembly Installation

1. Position assembled subframe under trck

between two rear subfrme brackets.

2. Install two 1/2" x 1-3/4" grde 5 bolt, 1/2"

flat washer and 1I2ll locknut (per side) to hold

subframe to rea brackets.

3. Swing front of subframe assembly up until

front brackets ar seated against bottom frame

flange.

CAUTION: Before drlling any holes,

. " check both sides of the material for àny

wires, fuel lines, fuel tank, etc. that may be

damaged by driUing.

4. Usingbtacket asätèmplàte,cèfitetpurlch and

dril a 17/3211 bole in vertical web of frame,

one on each side.. See Figure 7. .

Figure 7

Drier~sSUle Shown

5. Instál1 one 1/2ll x 2" grade S bolt and 1/2" flat

washer (per side) with the head of the bolt

inside the web of the frame. Retan with 1/2"

flat washer and 1/2n locknut.

6. Tighten aU fasteners according to the Torque

Chart on page 2.

4Lit No. 13760

UNDER-FRAME MOUNT INSTALLATION

Secondary Frame Assembly

i. Position center secondar frame sections

between curb- and driver-side secondar

frame sections. See Under-Frame. Mount

Assembly drawing on page 8.

NOTE: Secondar frame must be assembled

. . .. with mount ba to inside of vertcal tube.

Top of center section should be approxìmately

six inches above top öf vertical tubes. The notch

in the top cross-member must face rearward.

NOTE: Center secondar fre may be

.. " '..assembled three or six inches lower for use

with higher trcks.

2. Align holes and install six 3/8" x 2..11211 grade

8 boIts through vertical tubes =and , center

aection sideplate. Retain with flat washer and

locknuts, three on each side.

3. - Tighten all fasteners according to the Torque

Chart on page 2.

Mounting the Secondary Frame

1. Position secondar frame behind trck and

insert mount bar of secondary frame into

subframe pockets. See Figure 8.

Figure 8

Lit. No. 13760

2. Slide secondar fre into subfrme until

3/411 holes align.

3. Install two 3/4" pins througb subframe and

secondar frame.

4. Retain 3/4lt pins by installing 3116" linchpin

into hole in 3/4" pins. S~ Figure 9.

Figure 9

Hopper Installation

1 & Lift hopper assembly and tip slightly forward.

See Figure 10.

Figure 10

5October 1, 2002

UNDER.FRAMEMOUNT ASSEMBLY

2. Position tabs on the hopper assembly over the

top of the installed secondar frame assembly

and lower the hopper assembly. See Figure

11.

Figure 11

3. Allow hopper assembly to rotate unti1 the

bottom contacts secondar frame assembly.

4. Insert hoJd..down pins on each side and secure

with haiin cotters. See Figure 12.

Figure 12

October 1,2002

5. Connect spreader-side wirng haress to

vehicle-side wirng haress. See Figure 13.

N... OTE: Grease the electrical connections

using dielectric grease.

VEHICLE.SIDE

WIRING HARNESS

Figure 13

C. ......AUTION: Both pins must be in place and

seèured with hairpin cotter pins. The

hopper assembly may become unstable if the

pins are not properly secure while the vehicle

is in motion.

6Lit. No. 13760

ABBREVIATION KEY

ASSY

eTR

Lit. No. 13760

Assembly

Cap Screw

Center

Curb-Side

Driver-Side

Grade

Hex

Lok

NYIS

PP "

SAE

STD

zye

Nylon Insert

PrevaiIing Torque

Society of Automotive Engineers

Standar

Type

Zinc Plate

Zinc Yel10w Chromate

October 1, 2002

PARTSLIST -

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\\\'\"""''...., '.., ",'-'--, ...."', ....'..".." ....

"'.. ....'....,..

"'", ....",\\,I

¡i

,..'"

,..

"",..,#

.."

Under-Frame Mount Assembly

l..

. ''-............

. ......,

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ø - '..........

. .'....

~..... , ~

IYI ~ "

127"" "

, .." '

. ....

October 1, 2002 8

,~........,..

ø ..

p~'

:,~7

...... l

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....

Ut. No. 13760

PARTS LIST

Under-Frame Mount Assembly

MOUNT SUBFRE - CU

MOUN SUBFRAM - DR

SECONDARY FRAME ,. CTR,

SECONDARY FRAME

SECOND,ARY FRAME

RECEIVR HIæ WI LABELS

(includes items i 7 and 18)

7 6 3/8~ 16X2~ 112 HX CS 08 ZYC

8 4 5/8-11X4 HX CS 08 zyç

9 8 5/8 PLAIN WASHER TV A SAE ZP

i 0 4 S/8-11FT HX LK NUT NYS LYC

11 6 3/8 PLAI WASHE TY A SID ZP

126 3/8-16FT fIX LK NU NYS ZYC

13 2 3/4X2-3/4HITCHPINZYC

14 2 PIN l/2f'X.5"

15 2 LINCHIN 3/16tt

16 2 HAIRPIN COTIR l/8t1

17 i LABEL - INORMATION (W ARNJNG)

18 i LABEL - INFORMATION (RATING)

Par 7-15 are found in the following assembly:

1 BOLT BAG ASSY

ITEM QTY.

1 i

2 1

3 )

4 1

5 1

6 1

DESCRIPTON

NOTE:. See Owner's Manufor repai par

numbers. _

Lit. No. 13760 9October 11 2002

PARTS LIST

Chevrolet I GMC Mounts

~~5

ITEM QTY. DESCRIPTON

i 1 MOUNTBRACKBT-6M-REAR-DR

2 i MOUNT BRACKET-GM-REAR-CU

3 I MOUN BRACKE~GM~RON~DR

4 1 MOUN BRACKET-GM-FRONT-CU

5 4 112-l3XI-3/4 HX CS G8 ZYC

6 6 1/2-13 X 1-3/4 fI CS 05 ZP

7 4 112-13 X 2HX CS G5 ZP

8 24 1/2 PLAIN WASHER TY A SID ZYC

9 i 4 1/2- i 3 PT HX LK NUT NYIS ZYC

,N.,.OTE: See Owner's Manual for repair part

numbers. _

October 1, 2002 10 Lit No. 13760

Western Under-Frame Mount #65890 - 1988-96 Chevy/GMC 1500 / 2500 / 2500HD / 3500 Installation guide

Brand: Western

Model: Under-Frame Mount #65890 - 1988-96 Chevy/GMC 1500 / 2500 / 2500HD / 3500

Type: Installation guide

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Western Under-Frame Mount #65890 - 1988-96 Chevy/GMC 1500 / 2500 / 2500HD / 3500 Installation guide

Western Under-Frame Mount #65890 - 1988-96 Chevy/GMC 1500 / 2500 / 2500HD / 3500 Installation guide

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