HOGG & DAVIS HYDRA 985 User manual

HYDRA 985
The information, specifications, and illustrations in this manual are on the basis of
information available at the time it was written. The specifications, torque values,
pressures of operation, measurements, adjustments, illustrations, and other
items can change at any time. These changes can affect the service of the given
product.
For the complete and most current information, contact:
Hogg & Davis, Inc
P.O. Box 405 / 3800 Eagle Loop
Odell, OR 97044-0405
541-354-1001
541-354-1080 Fax
For most recent manual
version please visit:
www.hoggdavis.com

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Contents
PRODUCT WARNINGS ........................................4
OPERATIONS ......................................................5
DIESEL ENGINE SPECIFICATIONS ............................................................................................................... 6
INTRODUCTION......................................................................................................................................... 6
GENERAL SPECIFICATIONS. ....................................................................................................................... 6
TRAILER ORIENTATION.............................................................................................................................. 8
MAIN FRAME AND AXLE ........................................................................................................................... 8
CONTROLS................................................................................................................................................. 9
LOADING INSTRUCTIONS ........................................................................................................................10
HYDRAULIC CONTROLS ...........................................................................................................................11
Power Unit Features ...........................................................................................................................11
FRONT HYDRAULIC CONTROLS ...........................................................................................................12
FRONT CONTROL BANK....................................................................................................................... 13
REEL CARRYING RACKS (MANDREL RACKS) ........................................................................................ 14
POWERED IDLER WHEELS AND HYDRAULIC CONTROLS.....................................................................14
AUXILIARY POWER SHAFT...................................................................................................................14
POWER UNIT .......................................................................................................................................14
JACKSTANDS........................................................................................................................................ 15
STEER-GO OPERATION ........................................................................................................................ 16
MANUERVERING INSTRUCTIONS............................................................................................................ 16
TO STEER AND MOVE.......................................................................................................................... 17
THE JOYSTICK ...................................................................................................................................... 17
ON BOARD AIR COMPRESSOR............................................................................................................. 18
BRAKE CONTROLLERS.......................................................................................................................... 18
TOOL CIRCUIT (OPTIONAL)......................................................................................................................19
LEVELWIND OPERATIONS ....................................................................................................................... 20
LEVELWIND COMPONENTS................................................................................................................. 21
PULLING PROCEDURES............................................................................................................................22
OVERHEAD WIRE................................................................................................................................. 22

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UNDERGROUND PULLING...................................................................................................................23
SERVICE ............................................................24
HYDRA 985 Lubrication .......................................................................................................................25
JACKSTAND INSTALLATION ................................................................................................................. 26
DRIVE ROLLER MAINTENANCE............................................................................................................27
DRAWDAR INSPECTION ...................................................................................................................... 28
ACME ADJUSTING SCREW................................................................................................................... 28
MANDREL RACK STABILIZER INSTALLATION ....................................................................................... 29

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PRODUCT WARNINGS
These warning labels and others like it are placed in critical areas of the machine. The warnings
are to be read and fully understood prior to operation of the unit.

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OPERATIONS

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INTRODUCTION
The Hogg & Davis, Inc HYDRA 985 Cable Reel Unit
is an advanced design cable pulling trailer that
provides tremendous pulling forces in a compact
vehicle. Its total design provides for easy
operations and affords great savings in set-up and
manpower. Full utilization of the HYDRA 985 will
greatly improve your cable installation and
removal operations.
This manual is designed to make you familiar with
the machine and its operation.
READ THIS MANUAL THOUROUGHLY BEFORE
OPERATING THE MACHINE
GENERAL SPECIFICATIONS.
 REEL CAPACITY: 108” dia X 56” wide
 HYDRAULIC REEL LIFITING CYLINDERS
 HYDRAULIC POWERED IDLER WHEEL
 HYDRASTATIC TRANMISSION POWER
UNIT
 CADMIUM PLATED, QUICK RELEASE
JACKSTANDS
 20,000 STUB STPINDLE AXLE
 AIR BRAKES w/ABS
 2.5” REEL MANDREL WITH TAPERED
CENTERING CONES, LOCKING
COLLARS, AND NYLATRON BEARINGS
DIESEL ENGINE SPECIFICATIONS
3TNV88-BDSA General
Specification
36.0 HP (26.9 kW) @ 3000 rated rpm*
____________________________________________________________________________
__________________
Type• • • 3 Cylinder, 4-Cycle, Liquid Cooled
Diesel Engine
Bore • • • • • • • • • • • • • • • • • • • • • • 88 mm
Stroke • • • • • • • • • • • • • • • • • • • • • 90 mm
Displacement • • • • • • • • • • • • • • • • • 1.642 L
Aspiration • • • • • • • • • • • • • Naturally
Aspirated
Combustion System • • • • • • • • • • Direct
Injection
Rotation (from flywheel end) • • • • • •
Counterclockwise
Dry Weight • • • • • • • • • • • • • 341 lbs (154 kg)

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TRAILER ORIENTATION
The HYDRA 985 is made up of four (4) major
working components (see Fig.1) they are:
A. MAIN FRAME AND AXLE
B. POWER UNIT
C. POWER IDLER WHEEL AND CONTROLS
D. REEL CARRYING RACKS
MAIN FRAME AND AXLE
The main frame and axle carry the entire weight of the
trailer and its payload. Constructed of heavy steel, the
main frame will provide many years of durable service and
minimum maintenance. The fenders and tool
compartments are incorporated as part of the main frame
structure.
The axle is of the 20,000 lb capacity stub type. Heavy duty
brakes, hubs and bearings provide many years of service
over all highway types.
LUBRICATION SCHEDULE SHOULD
BE FOLLOWED
D
B
A
C

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CONTROLS
The control panel has a variety of gauges and switches that control certain functions during the operation
of the HYDRA 985. Here is a description of these controls. (Figure 2)
A. Hydrastatic Pressure Gauge: This gauge alerts the operator to the system pressure at all times
during operation. IT IS NOT A GAUGE TO ILLUSTRATE line pull.
B. Front / Rear Control: This switch isolates the front and rear controls of the unit during operation.
C. Ignition Switch
D. Switch Panel: This panel contains various switches to control functions of the unit. Depending on
options installed the location of the switches may vary. They Include: Two speed on the fly shift
to Hi or Low speed, marker beacons, level wind, auxiliary air compressor, work lights, auxiliary
hydraulic tool circuit, etc.
E. Joystick: Spring return to Neutral control joystick for operating the Pay out or Take up feature of
the puller. Proportional control allows for infinite speeds and pulling force during operation. An
"OPERATOR PRESENT" switch may be installed on certain units. This provides security against
payout under power. Unit will not pay out until the switch has been pressed and the joystick
moved out of the neutral position
A
E
D
C
B

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LOADING INSTRUCTIONS