Ingersoll-Rand FORCE 5i FH10i Setup guide

Product Maintenance
Information
FORCE 5i Hydraulic Winch
Model
FH10i
(Dwg. MHP3010)
Save These Instructions
R
Form MHD56421
Edition 2
October 2013
45895125
©2013 Ingersoll-Rand

OnlyallowIngersoll Rand trainedtechnicianstoperformmaintenanceonthisproduct.ForadditionalinformationcontactIngersollRand factoryornearest
Distributor.
For additional supporting documentation refer to Table 1 ‘Product Information Manuals’ on page 2.
Manuals can be downloaded from http://www.ingersollrandproducts.com.
The use of other than genuine Ingersoll Rand replacement parts may result in safety hazards, decreased performance and increased maintenance and will invalidate all
warranties.
Original instructions are in English. Other languages are a translation of the original instructions.
Refer all communications to the nearest Ingersoll Rand Office or Distributor.
Table 1: Product Information Manuals
Publication Part/Document Number Publication Part/Document Number
Product Safety Information Manual (Non-Man Rider) MHD56250 Product Parts Information Manual MHD56422
Product Information Manual MHD56420
INSPECTION
Frequent inspections should be performed on equipment in regular service. Refer
to Product Information Manual.
nPeriodic Inspection
Refer to Table 2 ‘Inspection Classifications’ on page 2 for suggested winch
inspection classifications for Periodic Inspection intervals. Select inspection period
conditions most appropriate to application conditions.
Table 2: Inspection Classifications
Conditions Normal Heavy Severe
Typical Use (operating time) Infrequent Regular Continual/Constant
Load Range Usually light loads, occasional max. loads Usually medium loads, frequent max. loads Usually max. loads or almost max. loads
Installation Protected/Enclosed/Dry Not Sheltered/Exterior Full Exposure
Atmosphere Clean/Non-Corrosive Dirty/Non-Corrosive/Freshwater Marine Dirty/Corrosive/Saltwater Marine
Climate Dry/Stable Temperature Wet/Moderate Temperature Fluctuations Wet/Severe Temperature Fluctuations
Maintain written records of periodic inspections to provide an accumulative basis
forcontinuingevaluation. Inspectallitems listedinthe ‘FrequentInspection’section
of the Product Information Manual. Also inspect the following at the suggested
intervals recommended in Table 3 ‘Maintenance Interval Chart’ on page 3:
1. Siderails and Uprights. Check for deformed, cracked or corroded main
components. Replace damaged parts.
2. Fasteners. Check retainer rings, capscrews, nuts and other fasteners on winch,
including mounting bolts. Replace if missing or damaged and tighten if loose.
3. Drum and Sheaves. Check for cracks, wear or damage. Replace if necessary.
4. Wire Rope. In addition to ‘Frequent Inspection’ requirements, also inspect for
the following:
a. Build-up of dirt and corrosion. Clean with steam or a stiff wire brush to
remove dirt and corrosion if necessary.
b. Loose or damaged end connection. Replace if loose or damaged.
c. Check wire rope anchor is secure in drum.
d. Verify wire rope diameter. Measure the diameter of the wire rope from
crown-to-crownthroughoutthe lifeofthe wirerope.Recording of theactual
diameter should only be done with the wire rope under equivalent loading
and in the same operating section as accomplished during previous
inspections. If the actual diameter of the wire rope has decreased more than
1/64 inch (0.4 mm) a thorough examination of the wire rope should be
conducted by an experienced inspector to determine the suitability of the
wire rope to remain in service. Refer to Dwg. MHP0056 on page 2, A. Wire;
B. Crown to Crown; C. Strand; D. One Lay.
A
B
C
D
(Dwg. MHP0056)
5. All Components. Inspect for wear, damage, distortion, deformation and
cleanliness. If external evidence indicates damage, disassemble as required to
conduct a detailed inspection. Inspect gears, shafts, bearings, sheaves, springs
and covers. Replace worn or damaged parts. Clean, lubricate and reassemble.
6. Brakes. Individually test brakes installed to ensure proper operation. Brakes
must hold a 125%ratedload at mid drum without slipping. If indicated by poor
operation or visual damage, disassemble and repair brake(s). Check all brake
surfaces for wear, deformation or foreign deposits. Clean and replace
components as necessary. Adjustments can be made to the band brake to
compensate for normal brake lining wear. Refer to ‘Adjustments’ on page 6.
If brake band cannot be adjusted to hold rated load, replace the brake band
assembly. Adjustments cannot be made to the disc brake. The disc brake must
be repaired as described in “MAINTENANCE” on page 6.
7. FoundationorSupportingStructure.Checkfordistortion,wearandcontinued
abilitytosupportwinch and rated load. Ensurewinchisfirmly mounted and that
fasteners are in good condition and tight.
8. Labelsand Tags.Checkfor presence andlegibilityof labels. Replaceifdamaged
or missing.
9. Winch Guard. Verify fasteners are tight and in good condition. Ensure guard is
in good condition.
10. Press Roller (optional feature). Inspect rollers for wear and grooves or ridges.
Ensurerollersrotatefreely.Lubricaterollerboresifrotationisroughorstiff.Check
springs keep press rollers tight against wire rope drum diameter.
11. Drum Locking Pin (optional feature). Check handle operation engages and
disengages locking pin. Lubricate if operation is stiff.
nRecords and Reports
Inspection records, listing all points requiring periodic inspection should be
maintained for all load bearing equipment. Written reports, based on severity of
service, should be made on the condition of critical parts as a method of
documenting periodic inspections. These reports should be dated, signed by the
person who performed the inspection, and kept on file where they are readily
available for review.
nMaintenance Intervals
Refer to ‘Periodic Inspection’ on page 2 and Table 2 ‘Inspection Classifications’
on page 2 for maintenance interval guidance.
2Form MHD56421 Edition 2

Table 3: Maintenance Interval Chart
Normal Application
The following work can be completed by owner maintenance personnel
System Hydraulic Filter Inspect system filter every 45 days or 125 hours.
Grease Fittings Lubricate grease fittings every 180 days or 500 hours.
Gearbox Oil Level Check oil level in gearbox every 180 days or 500 hours. Replace oil yearly.
It is recommended that the following work be completed by an Ingersoll Rand trained service technician.
Standard Components 1 year or
1,000 hrs 2 years or 2,000 hrs 3 years or 3,000 hrs 4 years or 4,000 hrs 5 years or 5,000 hrs 6 years or 6,000 hrs 8 years or 8,000 hrs
Inspect Motor X X X
Inspect Manual Band Brake X X X X X X X
Inspect Disc Brake X
Inspect Gearbox X
Replace Winch Anchor Bolts X X
Inspect Drum, Housings and Main Frames X X X
Optional Components
Emergency Shut-Off Valve X X X X X X X
Press Roller X X X X
Drum Locking Pin X X X X
Heavy Application
The following work can be completed by owner maintenance personnel
System Hydraulic Filter Inspect system filter every 30 days or 100 hours.
Grease Fittings Lubricate grease fittings every 90 days or 250 hours.
Gearbox Oil Level Check oil level in gearbox every 180 days or 500 hours. Replace oil yearly.
It is recommended that the following work be completed by an Ingersoll Rand trained service technician.
Standard Components 1 year or
1,000 hrs 2 years or 2,000 hrs 3 years or 3,000 hrs 4 years or 4,000 hrs 5 years or 5,000 hrs 6 years or 6,000 hrs
Inspect Motor X X
Inspect Manual Band Brake X X X X X X
Inspect Disc Brake X
Inspect Gearbox X
Replace Winch Anchor Bolts X X
Inspect Drum, Housings and Main Frames X X
Optional Components
Emergency Shut-Off Valve X X X X X X
Press Roller X X X
Drum Locking Pin X X X
Severe Application
The following work can be completed by owner maintenance personnel
System Hydraulic Filter Inspect system filter every 30 days or 100 hours.
Grease Fittings Lubricate grease fittings every 90 days or 250 hours.
Gearbox Oil Level Check oil level in gearbox every 90 days or 250 hours. Replace oil yearly.
Drum Band Brake Check band brake adjustment every 90 days or 250 hours.
It is recommended that the following work be completed by an Ingersoll Rand trained service technician.
Standard Components 1 year or
1,000 hrs 2 years or 2,000 hrs 3 years or 3,000 hrs 4 years or 4,000 hrs 5 years or 5,000 hrs 6 years or 6,000 hrs 8 years or 8,000 hrs
Inspect Motor X X X X
Inspect Manual Band Brake X X X X X X X
Inspect Disc Brake X X
Inspect Gearbox X X
Replace Winch Anchor Bolts X X X
Inspect Drum, Housings and Main Frames X X X X
Optional Components
Emergency Shut-Off Valve X X X X X X X
Press Roller X X X X
Drum Locking Pin X X X X
Note: Hours are for actual winch drum rotation.
Recommend complete general overhaul.
Form MHD56421 Edition 2 3

INSPECTION REPORT
Ingersoll Rand Force 5 Infinity Series Models FH10i Hydraulic Winches
Model Number: Date:
Serial Number: Inspected by:
Reason for Inspection: (Check Applicable Box)
1. Scheduled Periodic Inspection:
(_____ Months _____ Years) Operating Environment:
Normal ____ Heavy ____ Severe ____
2. Discrepancy(s) noted during Frequent Inspection
3. Discrepancy(s) noted during maintenance
4. Other: ___________________________
Refer to the Product Information and Parts Information Manual and “INSPECTION” section for the general inspection criteria. Also, refer to appropriate National Standards
and Codes of Practice. If in doubt about an existing condition, contact the nearest Ingersoll Rand distributor or the factory for technical assistance.
COMPONENT CONDITION CORRECTIVE ACTION NOTES
Pass Fail Repair Replace
Uprights and Siderails
Drum Band Brake (125% Load Test)
Disc Brake (125% Load Test)
Drum Band Brake (Visual Inspection)
Disc Brake (Visual Inspection)
Motor
Hydraulic System
Fasteners
Reduction Gears
Labels and Tags ---
Shafts
Winch Guard
Wire Rope Wedge ---
Wire Rope ---
Other Components (list in NOTES section)
Optional Features
Press Roller
Drum Locking Pin
Testing: Pass Fail NOTES
Operational (No Load)
Operational (10% Load)
Operational (Maximum Test Load*)
*Maximum test load is 125% of rated line pull. Testing to more than 125% of rated load may be required to set relief valve or comply with standards and regulations set
forth in areas outside the USA.
This page may be photo copied and used as an inspection record.
4 Form MHD56421 Edition 2

TROUBLESHOOTING
This section provides basic troubleshooting information. Determination of specific causes to problems are best identified by thorough inspections performed by personnel
instructed in safety, operation and maintenance of this equipment. The chart below provides a brief guide to common winch symptoms, probable causes and remedies.
SYMPTOM CAUSE REMEDY
Winch does not operate. Insufficient oil supply. Verify oil supply pressure and volume at winch inlet meets the requirements listed
in the “SPECIFICATIONS” section in Product Information Manual. Clean oil filter.
Winch is overloaded. Reduce load to within rated capacity.
Disc brake does not release. Pressurize disc brake release port and check for excessive leakage from the case
drain port. If excessive leakage is noted disassemble and repair motor as
recommended by the motor manufacturer.
Shipping plugs may still be in place. Remove shipping plugs in valve and motor ports.
Band brake does not release. Disengage manual band brake.
Motor may be damaged. Remove and disassemble motor as recommended by the motor manufacturer.
Examine all parts and replace any that are worn or damaged.
System relief valves set too low. Adjustsystemreliefvalvestomeetstherequirementslistedinthe“SPECIFICATIONS”
section in Product Information Manual.
Load continues to move when winch is
stopped. Brake is slipping. Check brake band lining wear. Check brake friction disc wear.
Winch is overloaded. Reduce load to within rated capacity.
Control valve may not be correct type. The
correct control valve should have all ports
open to reservoir when the spool is in the
neutral position.
If the motor ports in the valve are blocked by the spool (closed center) when the
control valve is in the neutral position, remove valve and replace with correct
tandem center (A & B to tank) or float center motor spool (P, A & B to tank) valve.
There is excessive back pressure acting on
the reverse port of the winch motor and disc
brake charge port.
Install pressure gauges in motor lines. Run the pump at its maximum RPM and, with
the control valve in the neutral position, read the pressure gauges. Pressure greater
than 140 psig (9.6 bar/9.8 kg/cm²) is too high. Check hose and control valve size.
Replace if necessary.
Winch does not lift load or does not lift
rated capacity. Winch does not lift/pull
load.
Motor may be damaged. Remove and disassemble motor as recommended by the motor manufacturer.
Examine all parts and replace any that are worn or damaged.
Insufficient oil supply. Verify oil supply pressure and volume at winch inlet meets the requirements listed
in the “SPECIFICATIONS” section in Product Information Manual. Clean oil filter.
No oil supply to winch. Check oil supply line connections, hoses and valves.
Winch is overloaded. Reduce load to within rated capacity.
System not delivering full pressure to winch. Confirm pump is running and on stroke. Check upline flow controls are set as
required to run the winch.
Relief valve dumps full pressure. Confirm no downline restrictions of valves are blocking free flow back to tank.
Relief valve set too low. Install pressure gauges in motor lines and apply a stall pull on the winch. If pressure
is low, increase relief valve setting until recommended pressure is obtained.
Relief valve is partially open. Remove relief valve and visually inspect and repair or replace worn or damaged
parts.Cleanall partsthoroughlyin a suitablesolvent.Reassemble, reinstallandreset
relief valve pressure setting.
Oillevelinreservoirtoolow.Suctionline may
be restricted or have an air leak causing
cavitation at the inlet pump. ‘Whining’ noise
at pump is an indication of this problem.
Check oil level in reservoir. Check suction line externally and internally for damage.
Replace suction line if damaged. If cavitation has occurred, it is recommended that
the pump be disassembled and inspected for worn, pitted and damaged parts.
Repair and replace parts as necessary.
Oil leak from motor end of winch. Reduction assembly is leaking. Disassemble winch and inspect reduction assembly seals.
Motor does not run smoothly, runs hot or
makes excessive noise during operation. Air entering hydraulic system. Check hoses and hose connections.
Incorrect oil type. Replace oil with type recommended in “LUBRICATION” section in Product
Information Manual.
Winch runs slow. Improper hose or fitting sizes. Check fittings, connections and hoses for correct size and length. Replace parts that
may cause restricted line flow. Inspect filter.
Motor may be damaged. Remove and disassemble motor as recommended by the motor manufacturer.
Examine all parts and replace any that are worn or damaged.
Brake(s) not releasing. Refer to brakes in “MAINTENANCE” on page 6.
Insufficient oil supply. Verify oil supply pressure and volume at winch inlet meets the requirements. Refer
to “SPECIFICATIONS” section in Product Information Manual. Clean oil line filter.
Hydraulic oil may be cold. Run hydraulic pump to warm and circulate oil through system.
Control valve lever hard to actuate, or lever
does not spring return to neutral. Valve spool sticking. Remove and disassemble control valve. Repair control valve as recommended by the valve manufacturer.
Automatic Disc Brake:
Brake fails to release. Low oil supply pressure. Ensure the oil pressure at the inlet to the disc brake is at least 300 psig (2069 kPa/
20.7 bar).
Leaking piston seals. Inspect brake breather. If oil escapes from breather when attempting to release
brake, replace brake seals.
No release pressure at brake port. Check line between manifold and brake.
Sticking brake piston. Apply 155 psig (1100 kPa/11 bar) to the brake release port and check for brake disc
movement. If brake discs do not move, disassemble and inspect the disc brake as
described in the manufacturer’s literature.
Form MHD56421 Edition 2 5

MAINTENANCE
WARNING
• Never perform maintenance on the winch while it is supporting a load.
• Before performing maintenance, tag controls:
WARNING - DO NOT OPERATE -
EQUIPMENT BEING REPAIRED.
•Only allow Ingersoll Rand trained Technicians to perform maintenance on
this product.
•After performing any maintenance on the winch, test winch to 125% of its
rated line pull at mid drum before returning to service. (Testing to more
than125%ofratedlinepullmay be required to comply with standards and
regulations set forth in areas outside the USA.)
• Shut off hydraulic system and depressurize lines before performing any
maintenance.
• Do not use Trichloroethylene to clean parts.
•Useofotherthangenuine IngersollRand partsmayresultinsafetyhazards,
decreasedperformance,andincreasedmaintenanceandmay invalidateall
warranties.
nGeneral
Correct disassembly (to prevent loss or damage of good parts), repair, assembly,
testing and adjusting are critical to proper winch operation. Maintenance
procedures are technical in nature and require training and experience to
accomplish correctly. In addition, repair and testing require specialized equipment
that is not typically found at the products mounting site.
Proper use, inspections and maintenance increase the life and usefulness of your
Ingersoll Rand equipment. During assembly, lubricate gears, nuts, capscrews and
all machined threads with applicable lubricants. Use of anti-seize compound and/
or thread lubricant on capscrew and nut threaded areas prevents corrosion and
allows for easy disassembly of components.
It is extremely important that anyone involved with maintaining the product be
familiar with the servicing procedures of these products and be physically capable
of conducting the procedures. These personnel shall have skills that include:
1. Proper and safe use and application of mechanics’ common hand tools as well
as special Ingersoll Rand or recommended tools.
2. Safety procedures, precautions and work habits established by accepted
industry standards.
Ingersoll Rand cannot know of or provide all the procedures by which product
operations or repairs may be conducted and the hazards and/or results of each
method. If operation or maintenance procedures not specifically recommended by
the manufacturer are conducted, it must be ensured that product safety is not
endangered by the actions taken. If unsure of an operation or maintenance
procedure or step, personnel should place the product in a safe condition and
contact supervisors and/or the factory for technical assistance.
NOTICE
• Refer to the Product Parts Information Manual for drawings unless
specified elsewhere.
nMaintenance Intervals
Refer to Table 3 ‘Maintenance Interval Chart’ on page 3 for recommended
maintenance schedule.
nAdjustments
nWinch Guard
Refer to Dwg. MHP2946.
Winch guard panels must be adjusted to suit wire rope departure angle. Adjust per
procedures in Product Information Manual.
nDisc Brake
Refer to Dwg. MHP2992.
Disc brake adjustment is not required. If disc brake does not hold rated load,
disassemble and repair as recommended by the disc brake manufacturer.
If brake assembly is removed or disassembled, ensure breather is installed and
located at top of brake housing during reassembly.
nManual Band Brake (optional feature)
Refer to Dwg. MHP0627.
1. Release wire rope tension on drum.
2. Rotate handwheel (104) counterclockwise to release brake bands.
3. Loosen nut (120) and turn adjustment screw (127) to provide 1/16 to 1/8 inch
(1.6 to 3.2 mm) gap between band lug and end of adjustment screw when brake
is applied.
4. When correct gap is obtained, tighten nut (120).
5. Check brake band is partially lifted from drum diameter to reduce drag when
brake is not in use.
CAUTION
•Whenanypartofbrake liningthicknessmeasures 0.062inch(2 mm)orless,
brake bands (128) must be replaced.
nHydraulic System General Maintenance
Hydraulic systems operate efficiently when properly maintained. The following
information should be developed into a routine maintenance procedure to ensure
the hydraulic system and components operate efficiently.
nHydraulic Motor
Inspect as recommended per motor manufacturer’s literature. Establish a schedule
as part of an overall maintenance schedule.
nReservoir
Maintain fluid level at all times. The fluid should be checked after the first 10 hours
of initial operation. If satisfactory, routine checks should be made each 100 hours of
operation to verify that the fluid (class and type) meets the requirements of the
pump.Changefluid every 1000to2000hours of operationdependingupon severity
of application and operating environment. If manufacturer’s requirements
recommend fluid changes sooner, follow those recommendations.
nSpare Parts
Spare filter elements should be available to allow filter replacement as necessary to
maintain a clean hydraulic oil supply. Other spare parts (hoses, fittings, etc.) should
also be available to limit equipment downtime in the event that repairs are
necessary.
nCleanliness
Keep equipment clean. A thick layer of dirt acts as insulation, causing the hydraulic
system to retain heat resulting in higher operating temperatures. If the system is
opened for inspection or repair, a clean work area prevents foreign contaminants
from entering the system and damaging component internal parts.
nFilter Maintenance
Filters must be maintained. The key to good filtration is effective filter
maintenance. Check filter condition frequently.
Keep a record of how often filters need replacing and use this record to establish a
service schedule. Routinely replacing the filter before it affects operation of the
winch reduces unexpected downtime and potential wear. A system may be
equipped with the best filters available, and the filters positioned properly so they
candothe most good,but,if the filters arenotreplaced when dirty,themoney spent
for the filters and their installation will have been wasted. A filter that gets dirty after
1dayof serviceandthen isnot cleaneduntil29 dayslaterallows 29daysof unfiltered
fluid. A filter is only as good as the maintenance given to it.
Service Suggestions:
1. Set up a filter maintenance schedule and follow it carefully.
2. Replace the original filter cartridge after 50 hours of operation.
3. Change or clean filters as required or indicated by visual indicators on filters
supplied with such devices.
a. Average Operating Environment - replace filter cartridge after each 500
hours of operation.
b. Dirty Operating Environment - replace filter cartridge after each 250 hours
of operation.
4. Clean suction strainers after first 10 hours of operation and every 100 hours
thereafter.
5. Inspect filter elements that have been removed from the system for signs of
other system damage.
6. Do not return to the system any fluid that has leaked out.
7. Always keep supplies of fresh fluid covered tightly.
8. Use clean containers, hoses and funnels when filling reservoir. Use of a filter cart
when adding fluid is highly recommended.
9. Use common sense precautions to prevent entry of dirt into components that
have been temporarily removed from the system.
10. Make sure that all clean-out holes, filler caps and breather cap filters on the
reservoir are properly fastened.
11. Donotrun the system unlessallnormally provided filtration devicesarein place.
12. Make certain that the fluid used in the system is a type recommended by the
manufacturer’s of the system or components.
The above recommendations are based on an open system equipped with micro-
air breathers. Open systems without micro-air breathers are not recommended.
Visual inspection cannot be used to determine cartridge replacement. Particles
below 40 microns are not visible to the human eye.
Before changing from one type of fluid to another (for example, from a petroleum-
base to a fire-resistant fluid) consult component and filter manufacturers on the
selection of the fluid and the filters that should be used. Follow recommended
flushing procedures when changing fluids. Also consult ANSI B93.5M-1979 “Practice
for the Use of Fire Resistant Fluids for Industrial Hydraulic Fluid Power Systems.”
6Form MHD56421 Edition 2

nDisassembly
nGeneral Disassembly Instructions
The following instructions provide necessary information to disassemble, inspect,
repair, and assemble product. Parts drawings are provided in Product Parts
Information Manual.
If a product is being completely disassembled for any reason, follow the order of
topics as they are presented. It is recommended that all maintenance work on
product be performed in a clean dust-free work area.
In the process of disassembling product, observe the following:
1. Never disassemble product any further than is necessary to accomplish needed
repair. A good part can be damaged during the course of disassembly.
2. Never use excessive force when removing parts. Tapping gently around
perimeter of a cover or housing with a soft hammer, for example, is sufficient to
break the seal.
3. Do not heat a part with a flame to free it for removal, unless part being heated
is already worn or damaged beyond repair and no additional damage will occur
to other parts.
In general, products are designed to permit easy disassembly and assembly. The
use of heat or excessive force should not be required.
4. Keep work area as clean as practical, to prevent dirt and other foreign matter
from getting into bearings or other moving parts.
5. All seals, gaskets and ‘O’ rings should be discarded once they have been
removed. New seals and ‘O’ rings should be used when assembling product.
6. When grasping a part in a vise, always use leather-covered or copper-covered
vise jaws to protect the surface of part and help prevent distortion. This is
particularly true of threaded members, machined surfaces and housings.
7. Donotremoveanypart whichisapressfit inoron asubassembly unlessremoval
of that part is necessary for repairs or replacement.
8. When removing ball bearings from shafts, it is best to use a bearing puller. When
removing bearings from housings, drive out bearing with a sleeve slightly
smaller than outside diameter of bearing. The end of sleeve or pipe which
contacts bearing must be square. Protect bearings from dirt by keeping them
wrapped in clean cloths.
nWinch Disassembly
NOTICE
• Remove band brake if equipped. Refer to
‘Manual Band Brake (optional feature)’ on page 6 for specific instructions.
Refer to Dwgs. MHP0875 and MHP3005.
1. Remove wire rope from drum.
2. Operate winch to position reduction gear drain plug at its lowest position.
3. Relievepressureinhydraulic lines by operating winchcontrolseveral times after
hydraulic supply has been shut off.
WARNING
• Shut off, bleed down and disconnect hydraulic supply line before
performing any disassembly procedures.
•The weight of a winch with a 24 inch (610 mm) long drum and no wire rope
is 3550 lb. (1610 kg). Exercise caution when lifting and moving winch.
4. Disconnect and tag hoses to motor and control valve..
5. Remove winch from its mounting and take to a suitable work area before
beginning disassembly.
6. Drain oil from reduction gear assembly by removing one plug (406) when
positioned at its lowest point and one plug (406) from its highest point to vent.
Refer to Dwg. MHP0567 in Product Information Manual. If winch is equipped
with a band brake, elevate the winch outboard end (opposite from motor end)
to prevent draining oil from contaminating brake band lining.
7. Remove band brake, winch guard and any other externally mounted winch
attachments.
8. Remove winch guard if equipped. Refer to ‘Winch Guard Disassembly’
on page 7.
9. Remove tubing and fittings from control valve to brake assembly (20).
10. Removenuts(8)and lockwashers (3) securing motorassemblytodisc brake (20).
Support motor and pull motor straight away from winch. Refer to motor
manufacturer’s literature if motor disassembly and service is required.
11. Remove brake assembly (20). If brake assembly sticks, tap it with a soft faced
hammer until assembly separates.
12. Remove capscrews (4) and pull brake adapter (6) from drum shaft (41).
13. Remove seal adapter (10) from brake adapter (6).
14. Remove ‘O’ ring (33) and oil seal (2) from seal adapter (10) if they require
replacement.
15. Remove input shaft (9).
16. Remove retainer ring (36) from inside drum shaft (41). Tap out input shaft (9)
with bearing (37), with a plastic mallet if necessary.
17. If coupling (49) came out with input shaft (7) remove at this time. If not, reach
into drum shaft (41) and remove coupling (49). Remove retainer ring (45) from
inside coupling (49).
18. Support drum (96).
19. Remove capscrews (119) and lockwashers (117) which secure siderails (98) to
inboard upright (42). Drive out dowel pins (183).
20. Remove inboard upright (42).
21. Remove capscrews (39) from drum shaft (41). Drive out dowels (62). Pry drum
shaft (41) from upright (42).
22. Remove ‘O’ ring (43).
23. Remove capscrews (582) and lockwashers (306).
24. Tap end cover (193) loose and remove.
25. Remove capscrews (192) and bearing retainer (191).
26. Remove remaining capscrews (119) and lockwashers (117) that attach siderails
(98)to outboardupright(184). Driveout remainingdowelpins(183)and remove
siderails (98).
27. Pull outboard upright (184) away from drum (96).
28. Remove bearing (188).
29. Position drum (96) vertically (with reduction gear assembly facing up).
30. Remove capscrews (63) holding adapter (52) onto drum.
31. Install two 1/2 inch - 13 NC x 2 inch capscrews into threaded holes in outer bolt
pattern ring of adapter (52). Use these capscrews as jacking bolts to break seal.
Attach suitable lifting eyes to these bolts and lift reduction gear assembly out
of drum and place on a clean work surface.
32. Remove all plugs (406) from reduction gear.
33. Remove capscrews (50) and nuts (48). Using a hammer and punch, tap spring
pins (40) into support (405). With a plastic mallet, tap adapter (52) until it is free
of support (405).
34. Replace plugs (406) and loosely tighten.
nWinch Guard Disassembly (optional feature)
Refer to Dwg. MHP2946.
1. Remove capscrews (197) and washers (117) securing lifting lugs (194) to
uprights.
2. Remove panels (805) and (807) one section at a time, by removing nuts (804)
and crossbars (806).
3. Remove capscrews (408) and washers (306) that secure panels (801), (802) (803)
and (810) to winch uprights.
4. Remove panels.
nManual Band Brake Disassembly (optional feature)
Refer to Dwg. MHP0627.
1. Remove nuts (102), lockwashers (103) and U-bolts (109).
2. Remove nut (110), handwheel (104), bearing (111) and tube (112).
3. Pull out brake screw (114). Catch spring (113) as brake screw clears.
4. Remove capscrews (116) and washers (117). Remove anchor (118) and plate
(122).
5. Remove capscrews (119) and washers (117). Remove support (126).
6. Slide brake band halves (128) off drum (96).
7. Remove capscrews (124), washers (123) and nuts (115) and separate brake band
halves.
nReduction Gear Disassembly
NOTICE
• It is extremely important to maintain a clean work area when reduction
gear assembly is disassembled.
• Disassembly is not recommended. If it is unavoidable, use the following
steps.
Refer to Dwg. MHP0875.
1. Place reduction gear assembly on a clean work bench. Have a couple of wooden
blocks available to prevent assembly from rolling around. There will also be a
small amount of oil remaining in housing so have some absorbent material
readily available.
2. Using a hammer and punch, drive spring pins (404) in, until they are completely
in input housing (424).
3. Remove capscrews (401) and, using a plastic mallet, tap seal support (400) until
loose and remove.
4. Remove oil seal (402) and ‘O’ ring (403).
5. Remove capscrews (425).
6. Using a plastic mallet, tap support (405) and ring gear (409) to separate.
7. Remove ‘O’ ring (408) and bearing (407).
8. Pull out planetary support (410) assembly.
9. From planet gear side reach into planetary support hub and remove retainer
ring (420). Spacer (422) may be on shaft (445) or still in spacer (418). Remove at
this time.
10. Push spacer (418) out of planetary support and remove ‘O’ ring (419).
NOTICE
•Donotdisassembleplanetarygearsfromtheir housings unless required to
replace damaged parts. Disassembly directions 11 and 12 apply only to
planetary gears (415) housed in planetary support (410). For information
on other planetary assemblies (430 and 440) contact your Ingersoll Rand
distributor or the factory.
11. Place planetary support (410) in a container. Holding the planet gear (415) with
one hand, slowly push planet gear shaft (417) out of support. Carefully remove
planet gear. When thrust bearings (413) become free squeeze together with
fingers. Once spring pins (412) are free they may fly out or roller bearings (414)
might start to fall out. Remove planet gear assembly and carefully place in
container.
12. Slide thrust bearings (413) off ends of planet gear (415) and push out all roller
bearings (414) into container.
13. Separate ring gear (409) from input housing (424) and remove ‘O’ ring (408).
14. Remove spacer (423).
15. Remove capscrews (439).
16. Separate input housing (424) from ring gear (436) and remove ‘O’ ring (434).
17. Remove retainer ring (427) from input housing (424) and pull out cylinder roller
bearing (426).
18. Remove sun gear (429) and spacer (428). Separate the two.
19. Remove planetary assembly (430).
20. Remove sun gear (433) and spacer (422). Separate the two.
21. Remove retainer ring (435) from sun gear (433).
22. Tap out spring pins (437). Separate ring gear (436) from input housing (438) and
remove ‘O’ ring (434).
23. Tap out spring pins (443). Remove capscrews (448) and separate input housing
(438) from ring gear (444) and end cover (446).
24. Remove planetary assembly (440) and ‘O’ ring (442).
25. Remove ‘O’ ring (442) and shaft (445).
Form MHD56421 Edition 2 7

26. Remove capscrews (452) and separate front cover (450). Remove thrust plate
(449) and gasket (447).
27. Remove adjusting screw (453).
nMotor Disassembly
Refer to motor manufacturer’s literature for motor maintenance instructions. It is
not recommended that the motor be disassembled unless it is known that problems
exist.
nPress Roller Disassembly (optional feature)
Refer to Dwgs. MHP2945.
1. Compress the ends of the springs (405) and (406) to disengage from siderail (98)
and pins (413) on press roller arm (407).
CAUTION
• Use care when releasing springs (405) and (406) from press roller. Springs
are under tension.
2. Loosen collars (404).
NOTICE
• Ensure press roller assembly is adequately supported before removing
shaft (403).
3. Remove capscrews (408) and washers (409) from both ends of shaft (403), and
carefullyslideshaft (403)throughhole inupright(42). Pressrollerassembly (400)
and collar (404) will fall away from shaft (403).
4. It is not necessary to remove bushings (410) unless replacing.
5. Remove springs (405) and (406) from press roller arm (407).
6. Removecapscrews (408),washers(409)androllers(402)from endsof pressroller
arm (407).
nDrum Locking Pin Disassembly (optional feature)
Refer to Dwg. MHP2675.
1. Remove capscrews (305) and washers (306) to separate drum locking pin
assembly from winch upright (184).
2. Unscrew drum lock pin (312) from shaft (304). Separate spring (310), drum lock
pin (312) and housing (308) from assembly.
3. Remove nut (303) and capscrew (302) to separate handle (301) from shaft (304).
4. Remove bushing (311) from winch upright (84) only if replacement is required.
nCleaning, Inspection and Repair
nCleaning
Clean all winch component parts in solvent (except drum brake bands). The use of
a stiff bristle brush will facilitate removal of accumulated dirt and sediments in the
reduction assembly, on housings, frame and drum. If bushings have been removed,
it may be necessary to scrape old Loctite® from bushing bores. Dry each part using
low pressure, filtered compressed air. Clean drum brake band using a wire brush or
emery cloth. Do not wash drum brake band in solvent. If drum brake band lining is
oil soaked, it must be replaced.
nInspection
All disassembled parts should be inspected to determine their fitness for continued
use. Pay particular attention to the following:
1. Inspect all gears for worn, cracked or broken teeth.
2. Inspect all bushings for wear, scoring or galling.
3. Inspect shafts for ridges caused by wear. If ridges caused by wear are apparent
on shafts, replace shaft. Inspect all surfaces on which oil seal lips seat.
4. Inspect all bearings for play, distorted races, pitting, and roller or ball wear or
damage. Inspect bearings for freedom of rotation.
5. Inspect all threaded items and replace those having damaged threads.
6. Inspect drum band brake lining for oil, grease and glazing. If drum band brake
lining is oil-soaked, replace brake bands as a set. Remove glazed areas of band
brake lining by sanding lightly with a fine grit emery cloth.
7. Measure thickness of drum band brake lining. If drum brake band linings are less
than 0.062 in. (2 mm) thick anywhere along edges replace brake bands (128) as
a set.
nRepair
Actual repairs are limited to removal of small burrs and other minor surface
imperfections from gears and shafts. Use a fine stone or emery cloth for this work.
Do not use steel wool.
1. Worn or damaged parts must be replaced. Refer to the applicable Parts Listing
for specific replacement parts information.
2. Inspect all remaining parts for evidence of damage. Replace or repair any part
that is in questionable condition. Cost of the part is often minor in comparison
with cost of redoing job.
3. Smooth out all nicks, burrs or galled spots on shafts, bores, pins or bushings.
4. Examine all gear teeth carefully, and remove nicks or burrs.
5. Polishedgesofallshaft shoulderstoremovesmallnicks causedduringhandling.
6. Remove all nicks and burrs caused by lockwashers.
7. Replace all gaskets, oil seals and ‘O’ rings removed during winch disassembly.
nAssembly
nGeneral Assembly Instructions
•Use all new gaskets and seals.
•Replace worn parts.
•Assemble parts using matchmarks attached during disassembly. Compare
replacement parts with originals to identify installation alignments.
•Lubricateallinternalparts with rustandoxidationinhibiting lubricant, ISO
VG 100 (SAE 30W).
•Apply a light coat of Loctite® 243 to all threaded components prior to
assembly, unless otherwise specified.
nDisc Brake and Motor Assembly
Ensure disc brake and motor are assembled in accordance with manufacturer’s
literature.
nReduction Gear Assembly
Refer to Dwg. MHP0875.
NOTICE
• During assembly of components apply a light coat of Loctite® 242 to all
threaded fasteners. Clean all mating surfaces. ‘O’ rings can be held in place
with a coating of EP grease applied to groove.
• It is extremely important to maintain a clean work area when reduction
gear assembly is reassembled. During reassembly clean each part
thoroughly and lightly coat with appropriate lubricant as described in
‘Recommended Lubricants’ of “LUBRICATION” section in the Product
Information Manual.
1. If removed, install planetary gears (415) into planetary support (410) as follows:
a. Install a pair of spring pins (412) into holes in planetary support (410).
b. Install and center roller spacer (416) in planet gear (415) bore.
c. Place 40 roller bearings (414) in each side of planet gear (415), a light coat
ofgreasewillhelp to hold them inplace.Placea thrust bearing (413) oneach
side of planetary gear assembly and squeeze.
d. Depress one spring pin (412) and slide planetary gear assembly over it.
Depressother sideandtipgearassembly intoplanetary support.Rotategear
assembly around spring pins until shaft hole aligns.
e. Push planet gear shaft (417) into place. Repeat for remaining two gear
assemblies.
f. Ensure each planet gear (415) rotates freely, without sticking or binding.
2. Fasten thrust plate (449) to front cover (450) with screws (453) and loosely
tighten.
3. Place a new gasket (447) on end cover (446). Install capscrews (452) through
front cover (450), gasket (447) and into end cover (446) and tighten.
4. Lubricate and install new ‘O’ ring (442) into groove on end cover (446). Apply a
bead of Loctite® 515 sealant to mating surface.
5. Align ring gear (444) with spring pins (443) and press ring gear on end cover
(446). Apply a bead of Loctite® 515 sealant to mating surface.
6. Lubricate and install new ‘O’ ring (442) into input housing (438).
7. Slideshaft(445)intoplanetary assembly(440).Insert thisassembly intoringgear
(444).
8. Align spring pins (443) with input housing (438) and press down.
9. Insert capscrews (448) through end cover (446) and into input housing (438).
Refer to “TORQUE CHART” on page 10 for torque requirements.
10. Lubricateandinstall new‘O’ring (434)into groove oninput housing(438).Apply
a bead of Loctite® 515 sealant to mating surface.
11. Align ring gear (436) with spring pins (437) and press down.
12. Install retaining ring (435) onto sun gear (433) and slide down shaft (445) into
planetary assembly (440).
13. Install spacer (422) into sun gear (433).
14. Install planetary assembly (430) into ring gear (436).
15. Slide sun gear (429) onto shaft (445) and into planetary assembly (430). Insert
spacer (428) into sun gear (429).
16. Insert bearing (426) into input housing (424). Install retainer ring (427).
17. Lubricateandinstall new‘O’ring (434)into groove oninput housing(424).Apply
a bead of Loctite® 515 sealant to mating surface.
18. Align spring pins (437) with input housing (424) and press down.
19. Insertcapscrews (439)throughinputhousing(438)andinto inputhousing (424).
Refer to “TORQUE CHART” on page 10 for torque requirements.
20. Insert spacer (423) into input housing (424) with bevel facing housing.
21. Lubricate and install new ‘O’ ring (419) onto outer groove on spacer (418). Insert
spacer (422) into center recess in spacer (418). Place this assembly into planetary
support (410) from planet gear end.
22. Insert retainer ring (420) in planetary support to hold spacer assembly in place.
23. Lubricate and install new ‘O’ ring (408) into groove in input housing (424). Apply
a bead of Loctite® 515 sealant to mating surface.
24. Align ring gear (409) with spring pins (404) and push down.
25. Insert planetary support assembly into ring gear (409).
26. Lubricateand installnew‘O’ring(408) intogroove insupport(405).Applya bead
of Loctite® 515 sealant to mating surface.
27. Align support (405) with spring pins (404) and push down.
28. Insert capscrews (425) through input housing (424) into support (405). Refer to
“TORQUE CHART” on page 10 for torque requirements.
29. Insert ball bearing (407) into support (405).
30. Insert oil seal (402) into seal support (400) (lip facing out).
31. Lubricate and install new ‘O’ ring (403) in groove in support (405). Apply a bead
of Loctite® 515 sealant to mating surface.
32. Align bolt holes with seal support (400) and support (405).
33. Insert capscrews (401) through seal support, into support and tighten.
34. Turn adjusting screw (453) in until end play is eliminated, then back it out two
turns.
nDrum Assembly
Refer to Dwgs. MHP3005 and MHP0875.
8Form MHD56421 Edition 2

NOTICE
• During assembly of components apply a light coat of Loctite® 242 to all
threaded fasteners.
•Clean all mating surfaces. ‘O’ rings can be held in place with a coating of EP
grease applied to groove.
1. Position drum (96) in vertical position, with reduction gear side facing up.
2. Remove plugs (406) from reduction gear support (405). Apply a bead of Loctite®
515 sealant on reduction gear surface that mates with adapter (52).
3. Place adapter (52) on reduction gear and align bolt holes. There is one place on
adapter with no hole. This should be positioned over one of plug (406) holes.
This becomes the drain/fill location (other 3 plugs will be blocked). Install
capscrews (50) through adapter (52) and attach nuts (48). Refer to
“TORQUE CHART” on page 10 for torque requirements. With a hammer and
punch, drive spring pins (404) into adapter (52) until about 1/16 inch (1.5 mm)
below surface.
4. Apply a bead of Loctite® 515 sealant to surface of drum (96) where adapter (52)
will mate.
5. Install two 1/2 inch - 13 NC x 2 inch capscrews with suitable lifting eyes into
threaded holes in outer bolt pattern ring of drum adapter (52). Lift reduction
gearassembly intodrum(96).Alignbolt holesand installcapscrews(63)through
adapter (52) and into drum (96). Refer to “TORQUE CHART” on page 10 for
torque requirements.
6. Place drum in horizontal position.
nWinch Assembly
Refer to Dwgs. MHP2992 and MHP3005.
NOTICE
• During assembly of components apply a light coat of Loctite® 242 to all
threaded fasteners.
•Clean all mating surfaces. ‘O’ rings can be held in place with a coating of EP
grease applied to groove.
1. Install bearing (188) in outboard upright (184).
2. Install outboard upright (184) on drum end. Ensure assembly is kept centered
on journal during this step.
3. Install bearing retainer (191). Secure with capscrews (192). Refer to “TORQUE
CHART” on page 10 for torque requirements.
4. Apply a bead of Loctite® 515 sealant to mating surface of outboard upright (184)
andinstallend cover (193).Securewithcapscrews (582) andwashers(306). Refer
to “TORQUE CHART” on page 10 for torque requirements.
5. Lubricate and install ‘O’ ring (43) on drum shaft (41).
6. Insert drum shaft (41) into inboard upright (42), aligning dowel pin holes.
7. Install dowel pins (62) flush or slightly below surface of drum shaft (41).
8. Install capscrews (39). Refer to “TORQUE CHART” on page 10 for torque
requirements.
9. Install inboard upright (42) onto reduction gear input shaft. Ensure splines on
drum shaft (41) align with splines in reduction gear.
10. Installsiderails (98)touprights (42)and (184)andlooselysecureusing capscrews
(119) and washers (117).
11. Tap dowel pins (183) into position until flush with siderails.
12. Tighten capscrews (119) evenly. Refer to “TORQUE CHART” on page 10 for
torque requirements.
13. Lightly coat input shaft (9) with Loctite® 609 and press bearing (37) onto input
shaft (9). Install retainer ring (38).
14. Insert retainer ring (45) into middle of coupling (49). Place onto reduction gear
end of input shaft (9).
15. Install input shaft assembly into drum shaft (41). Install retainer ring (36) in bore
of drum shaft (41).
16. Install studs (7) in brake adapter (6), using Loctite® 242, if they were removed.
17. Lubricate and install ‘O’ ring (33) on seal adapter (10). Install oil seal (2) in seal
adapter (10) ensuring seal lip is toward reduction gear.
18. Install seal adapter assembly in brake adapter (6) bore.
19. Lubricate and install 'O' ring (15) on drum shaft (41).
20. Install brake adapter (6) on drum shaft (41) being careful not to damage ‘O’ ring
(15). Secure in position with capscrews (4) using Loctite® 242.
21. Align holes in brake assembly with studs (7) and install brake assembly (20) on
brake adapter.
22. Installmotorassembly (29) onstuds(7) andsecurewith lockwashers (3)andnuts
(8).
23. Install manifolds (26) and (27) on motor ports using capscrews (23). Lightly coat
capscrew threads with Loctite® 242. Refer to “TORQUE CHART” on page 10 for
torque requirements.
24. Install fittings (34) and hose assembly (32) between brake and manifold (27).
nWinch Guard Assembly (optional feature)
Refer to Dwg. MHP2946.
1. Secure frames (801), (802), (803) and (810) to uprights (42) and (184) with
capscrews (408) and washers (306).
2. Secure lifting lugs (194) to uprights with capscrews (197) and washers (117).
3. Installpanels(805) and (807)oneat a time,beginningwith thelower(805) panel.
4. Install first crossbar (806) with nuts (804).
5. Attach panel to crossbar (806).
6. Hold second panel (805) in place and install second crossbar (806) by sliding
through (hooked) edges of the two panels.
7. Secure crossbar (806) with nuts (804).
8. Continue until all panels are in place.
9. Tighten all fasteners and check winch guard is secure. Ensure wire rope does not
interfere with winch guard during winch operation.
nDrum Locking Pin Assembly (optional feature)
Refer to Dwg. MHP2675.
1. Install new bushing (311) in winch upright (184) if replacement was required.
2. Install shaft (304) in handle (301) and secure with nut (303) and capscrew (302).
3. Install cover (307) on shaft (304) so capscrew holes are aligned with holes in
upright when handle (301) is in a horizontal position.
4. Installhousing (308),spring(310),anddrumlockpin (312)on shaft(304). Tighten
drum lock pin (312) on thread of shaft (304). Apply a small amount of Loctite®
242 to threads. Refer to “TORQUE CHART” on page 10 for torque requirements.
5. Install drum locking pin assembly in upright and secure with capscrews (305)
and washers (306).
nPress Roller Assembly (optional feature)
Refer to Dwg. MHP2945.
1. If bushings (410) have been removed, replace and install in uprights (42) and
(184),andinbothendsofarm(407).Greasebushings(410)foreaseofinstallation.
2. Install center roller (402) in press roller arm (407) and install shaft (411) through
both parts.
3. Install outside rollers (401) and secure with capscrews (408) and washers (409).
Apply a small amount of Loctite® 242 to threads of capscrews.
4. Install springs (405) and (406) so that the shorter end of the springs is toward
the inner portion of the arm (407) where the pins (413) are located.
5. One person positions press roller so the top of arm (407) is curved up toward the
undersideofthe drum (96),andholds press rollerinplace while theotherperson
completes installation.
6. Adjust both springs (405) and (406) so that the long end of springs is on the
inside of siderail (98).
NOTICE
• Do not engage shorter end of spring behind pins of arm (407) until after
shaft (403) has been installed and secured, and press roller assembly
adjusted to center of drum.
7. Install shaft (403) through hole in leg of upright (42) only.
8. Install one collar (404) on end of shaft (403) between upright and press roller
assembly.Donot tightencollar (404)untilsteps 11and12 havebeen completed.
9. Install shaft (403) through press roller assembly (400).
10. Install second collar (404) and slide shaft through hole in leg of upright (184).
Ensure that the long end of springs (405) and (406) are still between the siderail
(98) and drum (96). Do not tighten collar (404) until steps 11 and 12 have been
completed.
11. Secure shaft (403) to uprights using capscrews (408) and washers (409). Apply a
small amount of Loctite® 242 to threads of capscrews.
12. Adjustpressroller assembly so thatitis centered between thedrumflanges, and
tighten collars (404).
13. Useextremecaution and pry shortendof one spring (405)sothat it is positioned
behind the pin (413) of arm (407).
14. Repeat step 13 for spring (406).
NOTICE
• Use caution when installing springs (405) and (406); springs are under
tension.
nTesting
nOperational Test
Prior to initial use, winches shall be tested to ensure proper operation.
1. Check oil level in reduction gear assembly and disc brake are correct. Top off
levels as required before operation as described in the “LUBRICATION” section.
2. Run winch with no load. Confirm leak-free connections.
3. Install 0-3,000 psi (0-207 bar) pressure gauges with gauge snubbers teed into
the winch at or near the motor A and B ports. Run winch with no load. Record
pressure in both directions. Confirm winch hauls in when pulling throttle, and
pays out when pushing throttle. Ensure controls operate smoothly and winch
responds without sticking, binding or hesitation.
4. NewDrum BrakeBandLiningRun-inProcedure:Allnewdrumbrake bandlinings
require a ‘run-in’ period. Operate the winch without load in the payout direction
while gradually applying the brake. Allow the brake to slip for approximately
one minute. Winch motor may stall as drum brake band lining fully engages. Do
not allow brake to overheat.
5. Check operation of brakes. Adjust band brake if necessary as described in the
“MAINTENANCE” section.
6. Check operation of limit switches, locking mechanisms and all safety devices
when equipped.
7. Check foundation mounting fasteners are secure.
8. Install winch guard when provided.
nLoad Test
Prior to initial use, all extensively repaired winches shall be load tested by or under
thedirection ofan IngersollRand trainedTechnician andawrittenreportfurnished
confirming the rating of winch. Test loads shall not be less than 100% of rated line
pull and should not exceed 125% of rated line pull. To test winch at 125% of rated
load apply following load with wire rope on the first layer of the drum:
FH10i Winch 34,500 lbs (15,698 kg)
NOTICE
• Testing to more than 125% of rated line pull may be required to set relief
valve or comply with standards and regulations set forth in areas outside
of the USA.
Form MHD56421 Edition 2 9

TORQUE CHART
Standard Coarse Thread Torque
Size SAE Grade 5 SAE Grade 8
Dry Lubricated PTFE Dry Lubricated PTFE
1/4-20 8-10 6-7 4 12-14 9-10 5-6
5/16-18 17-20 13-15 8-9 25-28 18-21 11-13
3/8-16 31-35 23-26 14-16 44-49 33-37 20-22
7/16-14 49-56 37-42 22-25 70-79 52-59 31-36
1/2-13 75-85 57-64 34-38 106-121 80-90 48-54
9/16-12 109-123 82-92 49-55 154-174 115-130 69-78
5/8-11 150-170 113-128 68-77 212-240 159-180 95-108
3/4-10 267-302 200-227 120-136 376-426 282-320 169-192
7/8-9 429-487 322-365 193-219 606-687 455-515 273-309
1-8 644-729 483-547 290-328 909-1030 681-772 409-463
1 1/8-7 794-900 596-675 357-405 1288-1460 966-1095 580-657
1 1/4-7 1121-1270 840-952 504-571 1817-2059 1363-1545 818-927
Standard Fine Thread Torque
Size SAE Grade 5 SAE Grade 8
Dry Lubricated PTFE Dry Lubricated PTFE
1/4-20 10-11 7-8 4-5 14-15 10-12 6-7
5/16-24 19-22 14-16 9-10 27-31 20-23 12-14
3/8-24 35-40 26-30 16-18 49-56 37-42 22-25
7/16-20 55-63 41-47 25-28 78-88 58-66 35-40
1/2-20 85-96 64-72 38-43 120-136 90-102 54-61
9/16-18 121-137 91-103 55-62 171-194 128-146 77-87
5/8-18 170-193 127-144 76-87 240-272 180-204 108-122
3/4-16 297-337 223-253 134-152 420-476 315-357 189-214
7/8-14 474-537 355-403 213-242 669-758 502-568 301-341
1-12 704-798 528-599 317-359 995-1127 746-845 448-507
1 1/8-12 1023-1159 767-869 460-572 1444-1637 1083-1227 650-736
1 1/4-12 1425-1615 1069-1211 641-727 2012-2280 1509-1710 905-1026
Metric Coarse Thread Torque
Size Class 8.8 / 9.8 Class 10.9
Dry Lubricated PTFE Dry Lubricated PTFE
M6x1 9-10 6-7 4 11-12 8-9 5-6
M8x1.25 21-23 16-18 9-11 26-30 20-22 12-13
M10x1.5 41-47 31-35 19-21 53-60 39-45 24-27
M12x1.75 71-81 54-61 32-36 91-103 68-77 41-46
M14x2 115-130 86-98 52-59 147-166 110-125 66-75
M16x2 165-187 124-140 74-84 227-257 170-193 102-116
M20x2.5 321-364 241-273 144-164 443-502 332-376 199-226
M22x2.5 439-497 329-373 197-224 605-686 454-514 272-309
M24x3 556-630 417-473 250-284 767-869 575-652 345-391
M30x3.5 1103-1250 827-938 496-563 1521-1724 1141-1293 685-776
Metric Fine Thread Torque
Size Class 8.8 / 9.8 Class 10.9
Dry Lubricated PTFE Dry Lubricated PTFE
M8x1 22-25 17-19 10-11 28-32 21-24 13-14
M10x1.25 44-49 33-37 20-22 56-63 42-47 25-28
M12x1.25 78-89 59-67 35-40 100-113 75-85 45-51
M14x1.5 125-141 93-106 56-64 159-180 119-135 72-81
M16x1.5 176-200 132-150 79-90 243-276 183-207 110-124
M18x1.5 257-291 193-219 116-131 355-402 266-302 160-181
M20x1.5 358-406 268-304 161-183 494-559 370-420 222-252
M22x1.5 484-548 363-411 218-247 667-756 500-567 300-340
M24x2 609-690 456-517 274-310 839-951 630-713 378-428
M30x2 1227-1390 920-1043 552-626 1692-1918 1269-1438 761-863
Notes:
1. Definitions:
DRY: Cadmium plate, zinc plate, and oiled fasteners.
LUBRICATED: Molysulfide paste, carnaba wax, molysulfide grease and
copper-based anti-seize coated fasteners.
PTFE: 2% minimum PTFE coated fasteners.
2. All torque values foot-pounds unless noted.
3. SAE grade 5 equivalent to ASTM A325 Type 2 and ASTM A449.
4. SAE grade 8 equivalent to ASTM A354 Grade BD, ASTM A490 Type 1.
5. If mixing fasteners use lowest torque value.
6. Torque values 75 to 85% of fastener proof load ref.
10 Form MHD56421 Edition 2