Allied Systems H6H User manual

This manual must be with the vehicle
on which this winch is installed.
Please check the Allied Systems website
regularly for updates to this manual.
www.alliedsystems.com
P/N 599038W 7/2018

®
7/2018
Printed in USA
A Product of Allied Systems Company
Sherwood, Oregon USA
Winch Model H6H
Date Delivered
Serial Number
Date Installed
Special Equipment or Attachments

Foreword
The safe and efficient operation of a winch requires skill
and alertness on the part of the operator. To develop the
skills required, the operator must:
• Receive training in the proper operation of the winch
and the machine on which it is mounted.
• Understand the capabilities and limitations of the
winch and the machine on which it is mounted.
• Become familiar with the winch and the machine on
which it is mounted and see that they are maintained
in good condition.
• Read and understand the SAFETY SUMMARY
and OPERATING PROCEDURES contained in this
Operating Manual.
In addition, a qualified person experienced in the
operation of the winch must guide a new operator
through several load handling applications before the
new operator attempts to operate the equipment alone.
It is the employer’s responsibility to make sure that the
operator can see, hear, and has the physical and mental
ability to operate the equipment safely.
This operating manual contains basic information neces-
sary for the operation and maintenance of a winch.
Optional equipment is sometimes installed that can
change the characteristics described in this manual.
Make sure the necessary instructions are available and
understood before operating the winch.
Some of the components described in this Operating
Manual will NOT be installed on your winch. If you have
questions about any item on your winch or described in
this operating manual, contact your local winch dealer,
or contact Allied Systems Company:
Allied Systems Company
21433 SW Oregon Street
Sherwood, OR 97140 USA
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
Also visit our website, www.alliedsystems.com, where
the most current copy of this manual is always available.
Foreword
i
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ii
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Note: For repairs and overhaul, contact your
Allied winch dealer. If you maintain your own
equipment, a service manual is available for
your specific winch.
Note: This publication may be translated to
different languages for sole purpose of easy
reference in non-English speaking locations.
Should there be differences in interpretations
to the text, please refer to the English
language edition published by Allied Systems
Company as the controlling document.

iii
Contents
Foreword .................................................................... i
Contents....................................................................iii
Safety Summary ....................................................... v
General
Introduction................................................................. 1
Operating Principles of Winch.................................... 1
Nameplate .................................................................. 3
Wire Rope Selection .................................................. 4
Winch Descriptions..................................................... 5
Oil Specifications ....................................................... 6
Oil Capacity ............................................................... 6
Serial Number Codes................................................. 7
Optional Equipment.................................................. 10
Operation
Checks Before Operation......................................... 11
Checks During Operation......................................... 11
Operating Procedures .............................................. 12
BRAKE-ON & LINE-IN ............................................. 12
LINE-OUT................................................................. 15
HI-SPEED Operation................................................ 15
BRAKE-OFF............................................................. 15
FREESPOOL Operation........................................... 16
FREESPOOL Drag Adjustment....................... 17
Winch Troubleshooting Chart ................................... 18
Maintenance
Maintenance............................................................. 19
Maintenance Points ........................................... 19
Maintenance Schedule ...................................... 20
Operating Techniques
Tractor or Skidder Operation.................................... 21
How To Move A Disabled Vehicle............................. 24
Working on A Steep Slope....................................... 26
Tractor Is Down The Slope ................................ 26
Other Equipment Is Down The Slope................ 27
Optional Equipment
Integral Arch ............................................................. 29
Fairlead..................................................................... 29
Drawbar .................................................................... 30
Optional Gear Ratios................................................ 30
Contents

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Intentionally Blank

v
Safety Summary
General Safety Notices
The following pages contain general safety warnings
which supplement specific warnings and cautions
appearing elsewhere in this manual. All electrical and
hydraulic equipment is dangerous. You must thoroughly
review and understand the Safety Summary before
attempting to operate, troubleshoot or service this winch.
The following symbols/terms are used to emphasize
safety precautions and notices in this manual:
DANGER
The “DANGER” symbol indicates a
hazardous situation which, if not avoided,
will result in death or serious injury.
Carefully read the message that follows
to prevent serious injury or death.
WARNING
The “WARNING” symbol appears
wherever incorrect operating procedures
or practices could cause serious injury
or death. Carefully read the message that
follows to prevent serious injury or death.
CAUTION
The “CAUTION” symbol appears where a
hazardous situation which, if not avoided,
could result in minor to moderate injury
and equipment damage.
Safety Summary

vi
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NOTICE
This signal word alerts to a situation that
is not related to personal injury but may
cause equipment damage.
NOTE: …
The term “NOTE” highlights operating
procedures or practices that may improve
equipment reliability and/or personnel
performance.
Safety Regulations
Each country has its own safety legislation. Know and
understand these regulations and comply with them in
full. This also applies to local bylaws and regulations in
force on a particular worksite.
Should the recommendations in this manual deviate
from those in the users’ country, the national regulations
should be followed.
NOTE: All possible safety hazards cannot
be foreseen so as to be included in this
manual. Therefore, you must always be
alert to potential hazards that could
endanger personnel and/or damage the
equipment.
Operation, Inspection, and Maintenance Warnings
WARNING
The winch shall not be used for hoisting.
WARNING
Use hearing protection when operating
winches.
WARNING
Maximum permissible system pressure
and flow: 4250 PSI / 55 GPM.

vii
Safety Summary
• Inspect the winch before each use:
xMake sure that the controls and instruments
operate correctly.
xReport the need for repairs immediately.
xDo not work with a damaged or worn wire rope.
xDo not use a winch that needs repairs.
xIf the wire rope and ferrule must be removed
from the drum, make sure the end of the
wire rope and ferrule are controlled when
the ferrule is released. The end of the wire
rope can suddenly move from the drum like a
compressed spring when the ferrule is released
and cause an injury.
• Stay in the operator’s seat when operating the
winch.
• Do not stand on the vehicle when operating the
winch.
• Avoid winch operation near people or other
machines.
Obey the following cautions and
warnings before using your winch, to
avoid equipment damage, personal
injury or death.
• Do not operate the winch unless your are authorized
and trained to do so.
• Do not operate the winch unless the vehicle is
equipped with a screen to protect the operator if
the wire rope breaks.
• Read, understand, and follow the operating,
inspection, and maintenance instructions in this
Operating Manual.
• Do not use the control levers for hand holds when
entering or leaving the vehicle.
• Do not permit other people near the control area
when you inspect or repair a machine.
• Never inspect, repair, or perform maintenance on
a machine that is in motion.

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• Never stand nor permit others to stand in the bight
(loop) of a wire rope.
• Do not stand nor permit others to be near the winch
or wire rope when there is tension on the wire rope.
• Observe jobsite rules.
• Be in complete control at all times.
• Do not use the control levers as hangers for clothes,
water bags, grease guns, lunch pails, etc.
• Do not leave the vehicle when the winch wire rope
is under tension.
• Do not permit riders on the vehicle or load.
• Do not use the winch as an anchor for a double or
two-part line.
• Do not pull the hook through the throat or over the
drum, which will cause damage.
• When the winch is not in use, make sure the control
lever is in BRAKE-ON position and the winch brake
is applied.
• Do not use winch as a hoist. Tractor and skidder
mounted winches are designed for towing.
• Always inspect wire rope, tail chain and other rigging
components for wear, damage, broken strands or
abuse before use.
• Never use wire rope, tail chain or other rigging that
is worn-out, damaged or abused.
• Never overload wire rope, tail chain or rigging.

ix
Safety Summary
• Wire rope and tail chain will fail if worn-out,
overloaded, misused, damaged, improperly
maintained or abused. Wire rope or tail chain failure
may cause serious injury or death!
KG
KG
• Do not terminate wire rope to tail chain by the use
of a knot.
• Do not handle wire rope if the hook end is not free.
A load could break away, suddenly tensioning the
wire rope, resulting in serious injury or death.
• Stay clear of wire rope entry areas (fairlead or arch
rollers, winch drum etc).
• Make sure ground personnel are in plain view of the
operator, and at a distance of at least 1½ times the
working length of the wire rope.
• Make sure that any hand signals used by ground
personnel are clearly defined and understood by
everyone involved.
• Do not attempt to “jerk” or “shock” a load free. Doing
so can cause loads in excess of the rated capacity
of the wire rope, winch, or mounting hardware.
• Replace any parts only with genuine Allied Winch
parts. Refer to Parts Manual 599039W.
• Maintain a minimum of three (3) complete wraps
of wire rope on the drum for normal operation. It
may help to paint the last five wraps of wire rope
a contrasting color, to serve as a visual indicator.
• Do not handle wire rope with bare hands. Wear
leather gloves at all times.
• Align the tractor with the load to prevent side loading
the winch, and to maintain even spooling of the
wire rope.

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• If applying tension to the wire rope manually during
spooling:
xensure that the operator is winching in slowly,
xkeep your hands and clothing well clear of any
rollers or the winch drum,
xdo not maintain tension by letting the wire rope
to slip through your hands,
xuse a hand-over-hand technique to maintain
tension.
• Be aware of the ground conditions, and make sure
the ground and tractor are stable enough to pull
the intended load.
• Do not attempt to pull loads in excess of the rated
capacity of the winch.
• Keep yourself informed of any applicable codes,
regulations and standards for the job.
• Your winch may have temperature shut-off system
for protection of tractor and winch. Manual override
of high temperature shut-off will cause damage to
tractor and winch.
• This winch is neither intended, designed, nor rated
for any application involved in the lifting or moving
of personnel.
• Use only the lubricants listed in the Oil Specifications.
See Page 6.
• Do not weld on any part of the winch. Contact Allied
Systems if weld repairs are needed.
• The hydraulic system must be kept clean and free
of contamination at all times.
• Be aware of the hazards of pressurized hydraulics:
xWear personal protective equipment, such as
gloves and safety glasses, whenever servicing
or checking a hydraulic system.
xAssume that all hydraulic hoses and components
are pressurized. Relieve all hydraulic pressure
before disconnecting any hydraulic line.
xNever try to stop or check for a hydraulic leak
with any part of your body; use a piece of
cardboard to check for hydraulic leaks.
xSmall hydraulic hose leaks are extremely
dangerous, and can inject hydraulic oil under
the skin, even through gloves.
xInfection and gangrene are possible when
hydraulic oil penetrates the skin. See a doctor
immediately to prevent loss of limb or death.

xi
Safety Summary
Notes

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Notes

1
General
Introduction
This Operating Manual contains basic information
necessary for the operation and maintenance of the
H6H winch.
Operating Principles of Winch
A winch is normally installed on a skidder or tractor to:
• increase the pulling power of the skidder or tractor.
• reach into an area where a skidder or tractor cannot go.
• make lift functions available when special attachments
are installed (see page vii).
The winch is powered by an internal hydraulic motor
connected to the tractor hydraulic system. Oil flow and
pressure are converted to rotational energy by the winch
motor. On the H6H, torque is transmitted through a
holding brake, a planetary speed reducer and two gear
reductions to the drum. Hydraulic oil is supplied by the
tractor mounted pump. The winch utilizes oil, filtration
and cooling provided by the tractor circuit. Operation of
the winch is controlled by a control lever and electrical
switches located at the tractor’s control station.
The tractor must be running and the auxiliary hydraulic
function switch, if equipped, must be on. LINE-IN, LINE-
OUT and BRAKE-ON are controlled by a proportional
control lever. When the control lever is in the BRAKE-ON
or centered position, the holding brake is automatically
applied. Pushing the lever away from the operator
releases the brake and reels wire rope off the drum
(LINE-OUT). Pulling the lever towards the operator
releases the brake and reels wire rope onto the drum
(LINE-IN). Releasing the lever causes it to return to the
BRAKE-ON position, which stops the drum rotation
and applies the holding brake. Moving the lever a small
amount results in slow wire rope movement for inching
control. Line speed increases proportionally as the lever
is moved farther.
By moving the control lever to full stroke, HI-SPEED is
activated. Control pressure actuates the motor swash plate
to reduce motor displacement and increase motor rpm.
If pressure in the main circuit exceeds a factory set level,
General

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2
the motor will automatically increase motor displacement
to prevent motor stall. Motor stall will occur when the load
exceeds winch capacity. When the control lever is returned
to the BRAKE-ON position, the brake is automatically
applied.
The switch panel contains two rocker switches to control
FREESPOOL, and BRAKE-OFF.
The tractor must be running to supply both hydraulic and
electrical powers to operate these functions.
WARNING
FREESPOOL should not be used if there is a
load on the wire rope. An uncontrolled release
of the load will occur. Loss of the load can
result in equipment damage, personal injury
or death.
The yellow indicator panel on the selector switch lights
when the winch is in FREESPOOL. The red indicator in
the BRAKE-OFF switch will also light even though that
switch is in the off position.
When FREESPOOL is selected, a hydraulically-actuated
sleeve disengages the drum pinion from the intermediate
shaft. The drum is now disconnected from the brake and
the winch cannot support a load. The control lever will
still operate the winch motor but the drum will not turn.
When the BRAKE-OFF switch is selected, the brake-off
clutch is disengaged, allowing the tractor to move away
from a towed load. BRAKE-OFF is controlled by the
rocker switch with a red indicator. A safety lock prevents
the switch from accidentally being turned on. To operate
the switch, slide the locking tab first, then push the rocker
switch.
The BRAKE-OFF position is used when there’s a load
on the winch wire rope. It allows the operator to move the
tractor away from the load while spooling wire rope off the
drum in a controlled manner.
In BRAKE-OFF, hydraulic pressure is applied to release
the brake-off clutch. As wire rope is pulled from the winch,
the turning drum back-drives the winch gear train to the
brake-off clutch. The winch motor, brake, and planetary
reducer remain stationary. Mechanical drag through the
gear train and viscous drag in the brake-off clutch keep the
wire rope from bird-nesting as it is spooled off the drum.

3
General
WARNING
BRAKE-OFF should not be used to lower a
suspended load or a load that can slide down
a slope.
Nameplate
Each winch is shipped from the factory with a nameplate
as shown in Figure 1. The nameplate is stamped with:
• winch model
• winch serial number
• maximum bare drum line pull
• maximum wire rope diameter
DO NOT operate the winch with larger diameter wire
rope. If the nameplate is missing, DO NOT operate the
winch until its capacity is known.
The serial number for the winch is also stamped into the
frame next to the nameplate.
Figure 1 - Nameplate

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4
pocket if there is a load on the wire rope with
fewer than 3 complete wraps on the drum. This
will cause a loss of load and possible injury.
When spooling wire rope from the drum, it is
very difficult for the operator to know when
nearing the end of the wire rope. It is recom-
mended that the last 5 wraps of wire rope be
painted a contrasting color to alert the operator
that the end of the usable wire rope has been
reached.
Figure 2 - Drum Line Capacities
Figure 3 - Ferrule Size and Type
Wire Rope Selection
Each winch model can have a variety of wire rope sizes
installed by the user. The maximum wire rope size is
shown on the nameplate. See Figure 2 for approved wire
rope sizes and drum capacities. When a larger diameter
wire rope is used, the length of wire rope installed on the
drum will be shorter. In some situations, the winch can
create a tension in the wire rope that is greater than the
strength of the wire rope. The user must be careful to
select a wire rope that has enough strength and length
for the job.
WARNING
During operation of the winch, the operator
must know or estimate the line pull and make
sure that the line pull is within the capacity of
the winch and the specifications of the wire
rope installed on the drum. A broken wire rope
under high tension can return suddenly in the
direction of the winch and cause equipment
damage, injury or death.
The wire rope may disengage from the ferrule
Ferrule Size & Type
Light Ferrule 2 1/4” x 2.0” Dia.
Wire Rope Diameter Capacity (Drum: 10 in.)
19mm (3/4 in.) 126 m (413 ft.)
22mm (7/8 in.) 91 m (297 ft.)
25mm (1.0 in.)* 70 m (230 ft.)
Notes:
1. Loosely or unevenly spooled line will change capacities.
2. Use flexible wire rope with independent wire rope center.
3. Ferule size: 2.0 in dia, 2 1/4 in long.
* If your winch is equipped with the optional arch, the largest
wire rope diameter approved for use is 7/8 inch.

5
General
Winch Descriptions
Figure 4 - H6H Towing Winch
XXXXXXX
1
23
4
5
6
8
10
13
12
7
XXXXXX
X
11
1. Drum
2. Access Cover for Motor & Winch Hydraulics
3. Plug to Drain Oil
4. Plug to Check Oil Level
5. Tie Bar
6. Fill Plug
7. Bearing Retainer for Intermediate
Shaft
& FREESPOOL drag Adjuster
8. Right Side Drum Shaft
9. Drawbar (Not Shown)
10. Breather
11. Maintenance & Warning Decals
12. Serial Number Stamp
13. Serial Number Plate

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6
Oil Specifications
The hydraulic winch motor and control system operate
off of the tractor implement hydraulic system. The winch
gear case is filled with hydraulic transmission oil and is
separate from the tractor hydraulic system. Factory fill for
the gear case is oil meeting Caterpillar TO-4 specification
SAE 30 weight. For proper operation of the BRAKE-OFF
clutch, only oils meeting this specification should be used
in the winch gear case.
Other hydraulic oils meeting this specification are:
ExxonMobil, Mobiltrans HD-30
Chevron, Chevron Drive Train Fluid HD SAE 30.
Oil Capacity
The oil capacity for H6H winch is 4 gallons (15 liters).