General Machine Products CD-28 User Manual

ADAMS
MODEL CD-22
MODEL CD-28

CONTINUOUS DUTY WINCH

Installation, Operation and

Maintenance Manual

General Machine Products Co., Inc.

3111 Old Lincoln Highway Trevose, PA 19053 USA

Tel: [phone] Fax: [phone] Email: [e-mail]

TABLE OF CONTENTS

GENERAL ………………………………………………………………….. Page 2
MAJOR COMPONENTS …………………………………………………... Page 3
ACCESSORIES …………………………………………………………….. Page 3
USE …………………………………………………………………………. Page 3
HYDRAULIC REQUIREMENT …………………………………………... Page 3
INSTALLATION …………………………………………………………... Page 3
CONTROLS ………………………………………………………………... Page 4
WINCH CLUTCH AND DRAG BRAKE INFORMATION .……………... Page 4
CALIPER BRAKE ASSEMBLY INSTALLATION ………………………. Page 6
AUTOMATIC BRAKE …………………………………………………….. Page 6
PREPARING FOR OPERATION………………………………………….. Page 7
OPERATING THE WINCH ………………………………………..………. Page 7
MAINTENANCE …………………………………………………………... Page 8
LUBRICATION ………………………………………………..…………... Page 8
PRECAUTIONS ……………………………………………………………. Page 9
WIRE ROPE INFORMATION …………………………………………….. Page 10
WINCH IDENTIFICATION ……………………………………………….. Page 11
ACCESSORIES …………………………………………………………….. Page 11

BASIC DETAILS CD-22 CD-28

Maximum Rated Pull-Bare Drum 20,000 lbs. 20,000 lbs.
Maximum Rated Pull-Full Drum 9,000 lbs. 9,000 lbs.
Drum Width 22.5” 28”
Net Weight 925 lbs. 935 lbs.
Cube Dimension 24” High X 24” Wide X 60” long 65” long

BASIC DETAILS …………………………………………………………... Page 2

GENERAL

The Model CD-22 and CD-28 winches are derived from Bell System Spec. 8003­LlB and 8003-L2B. Differing only in the drum width, they are suitable for appli­cations involving stationary or mobile mounting. Driven by a series of highly
efficient helical gears, these units will not generate excessive heat under long,
maximum pull conditions.

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MAJOR COMPONENTS

ACCESSORIES

• Winch Drive Assembly

• Final Drive Assembly

• Safety Brake Assembly

• Drum Assembly

• Clutch Assembly

• Drag Brake Assembly

• Hanger

• Frame

Levelwind Model CH-22 or CH-28, Overw i nd o r Un der wind
(Derived from Bell System Spec. 8414).
Three speed transmission-hydromechanical Model 240-584
(Derived from Bell System Spec. 8111).
Three speed transmission-hydraulic Model 230-1600
Drum shaft extension

USE

HYDRAULIC
REQUIRMENT

INSTALLATION

The Models CD-22 and CD-28 can be driven mechanically, hydromechanically
or hydraulically. Both winches have been primarily designed for placing under­ground communication cable or electrical conductor. However, they can be used
for most applications where a long, continuous pull is required.

Mechanically - for mobile mounting, using the truck engine as the prime source of
power, through a split shaft or side mount power take-off and silent chain drive to
the winch input shaft.

Hydromechanically - for mobile mounting, using the truck engine as the prime
source of power, through a split shaft or side mount power take-off coupled to a
hydraulic pump, driving a hydraulic motor integrally mounted to the mechanically
shifted three speed transmission and silent chain drive to the winch input shaft.

Hydraulically - for mobile mounting, using the truck engine as the prime source of
power, through a split shaft or side mount power take-off, coupled to a hydraulic ;
pump, driving a three speed hydraulic motor and silent chain drive to the winch
input shaft.

Stationary mounted units can also be driven mechanically, hydromechanically or
hydraulically. The prime source of power can vary.

Hydromechanical - to obtain the maximum rated pull and line speed, using the
three speed transmission model 240-584, the system should have an operating pres­sure of 2,000 psi and a flow of 55 GPM. The pressure relief should be set at 2,200
psi.

Hydraulic - to obtain the maximum rated pull and line speed, using the three speed
transmission Model 230-1600, the system should have an operating pressure of
2,000 psi and a flow of 30 GPM. The pressure relief should be set at 2,100 psi.

Suction line hoses are 1" diameter minimum; return line hoses are IV" diameter.
The recommended hydraulic oil reservoir capacity for the Model 240-584 three

speed transmission is eighty gallons; for the Model 230-1600, sixty gallons.
The suction line is fitted with a 100 mesh strainer; the return line is fitted with a 10

micron by-pass type filter.
For additional details and information concerning the Model 240-584 three speed

transmission, see drawings 15669-1 and 15669-2; for Model 230-1600, see draw­ings 230-1600-1 and 230-1600-2.

For mobile applications, the winch is normally mounted behind the chassis cab in
the forward section of the body load area, directly to the chassis frame or sub­frame. Two standard cast steel mounting brackets are furnished with each winch.

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CONTROLS

Sufficient clearance should be allowed between the front body panel or other re­strictive members and the winch to permit normal maintenance.

For standard installations, place the winch assembly on the chassis frame so that the
levelwind is facing rearward and the drum shaft is projecting toward the right or
curb side.

The normal direction of drum rotation for pulling in is clockwise when viewed
from the right side of the vehicle. The wire rope is wound onto the drum from the
top. Deviation from this standard mounting procedure could cause severe heat and
operational difficulties.

With the two mounting brackets on the winch frame, locate the winch drum center­line on the chassis frame center-line. Slide the mounting brackets tight to the chas­sis frame. Using the eight %" diameter pre-drilled holes in each bracket as a guide,
finish drill all holes in both brackets for a tight fit, using the %" -18 x 2" long class
five hardened steel bolt furnished in the winch mounting kit.

Weld both sides of the mounting bracket to both winch frame rails. Do not weld
the mounting brackets to the chassis frame.

All of the mounting hardware and, if ordered, the drum shaft extension, are
shipped in a parts box attached to the winch or shipping crate.

To protect the entire winch assembly against rust, various parts are sprayed with a
rust inhibitor and both drive housings are filled with oil when shipped from the
factory. If the winch will be placed in outside stock for an indefinite period, care
should be taken to prevent oil contamination or rust due to condensation.

When the winch has been mounted, consideration must be given to the control of:
Drum direction of rotation
Drum speed
Winch clutch and drag brake (disc type)
Drag brake (band or ca liper type)

Because of the wide variation in the type of controls available, it is the responsibil­ity of the dealer to furnish and install those required in the bid specifications,
whether they are conventional or automatic. This is particularly true for drum
rotation direction and speed.

On all units there is a drag brake assembly. The brake is either a disk, band or cali­per type, depending on the date of manufacture. Disk or band type brakes are con­trolled by a push-pull handle at the right rear of the vehicle. Caliper type brakes are
controlled by a hydraulic actuator at the left rear. For correct brake identification,
check the winch serial number, the date of manufacture and additional information
found on pages 4, 5, and 6 of this booklet.

WINCH CLUTCH
AND DRAG BRAKE
GNERERAL INFORMA­TION

SHIFTING OF THE CLUTCH SHOULD ONLY BE DONE WHEN THE DRUM
AND DRAG BRAKE ROTATION HAS STOPPED.

When shifting from the disengaged to the engaged position, the operator should
make certain that full engagement is accomplished. Normally, proper engagement
is identified by a characteristic clang of the clutch plate and the drum.

When the winch clutch is disengaged, the drum will rotate freely on the drum
shaft. It should also be noted that power can still be transmitted through the drum­shaft to the drum shaft extension to drive a capstan or reel.

Under present mechanized, high winch line speed conditions, it is extremely impor­tant to operate the disc, band or caliper type drag brake properly, maintaining suffi­cient tension on the wire rope. This will enable the levelwind assembly to operate
properly, minimize over-spinning of the drum and help provide suitable coils and
lays of wire rope.

THE DRAG BRAKE IS USED TO CONTRO L THE DRUM SPEED ONLY. IT IS
NEVER TO BE USED TO HOLD THE LOAD.

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