Instruction manual, Selection information, Safety alert – Grove Gear Stainless Steel User Manual

Page 3: Important information, General operation, Installation, Synthetic lubricants, Oil & weight specifications

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Phone: (262) 878-1221

Fax: (262) 878-1968


Instruction Manual

Selection Information

Read ALL instructions prior to operating reducer. Injury to personnel or reducer failure may be caused by improper installation,

maintenance or operation.

Written authorization from Grove Gear is required to operate or use reducers in man lift or people moving devices.

Check to make certain application does not exceed the allowable load capacities published in the current catalog.

Buyer shall be solely responsible for determining the adequacy of the product for any and all uses to which Buyer shall apply the

product. The application by Buyer shall not be subject to any implied warranty of fitness for a particular purpose.

Safety Alert

• Forsafety,BuyerorUsershouldprovideprotectiveguardsoverallshaftextensionsandanymoving

apparatus mounted thereon. The User is responsible for checking all applicable safety codes in his area

and providing suitable guards. Failure to do so may result in bodily injury and/or damage to equipment.

• Hotoilandreducerscancausesevereburns.Useextremecarewhenremovinglubricationplugsandvents.

• Makecertainthatthepowersupplyisdisconnectedbeforeattemptingtoserviceorremoveany

components. Lock out the power supply and tag it to prevent unexpected application of power.

• Reducersarenottobeconsideredfailsafeorself-lockingdevices.Ifthesefeaturesarerequired,a

properly sized, independent holding device should be utilized. Reducers should not be used as a brake.

• Anybrakesthatareusedinconjunctionwithareducermustbesizedorpositionedinsuchawaysoasto

not subject the reducer to loads beyond the catalog rating.

• Liftingsupportsincludingeyeboltsaretobeusedforverticallyliftingthegearboxonlyandnoother

associated attachments or motors.

• UseofanoilwithanEPadditiveonunitswithbackstopsmaypreventproperoperationofthebackstop.

Injury to personnel, damage to the reducer or other equipment may result.

• Overhungloadssubjectshaftbearingsandshaftstostresswhichmaycauseprematurebearingfailureand/

or shaft breakage from bending fatigue, if not sized properly.

• Testrununittoverifyoperation.Iftheunittestedisaprototype,thatunitmustbeofcurrentproduction.

• Ifthespeedreducercannotbelocatedinaclearanddryareawithaccesstoadequatecoolingairsupply,

then precautions must be taken to avoid the ingestion of contaminants such as water and the reduction in

cooling ability due to exterior contaminants.

• Mountingboltsshouldberoutinelycheckedtoensurethattheunitisfirmlyanchoredfor

proper operation.

Important Information

In the event of the resale of any of the goods, in whatever form, Resellers/Buyers will include the following language in a

conspicuous place and in a conspicuous manner in a written agreement covering such sale:

The manufacturer makes no warranties or representations, express or implied, by operation of law or otherwise,

as to the merchantability or fitness for a particular purpose of the goods sold hereunder. Buyer acknowledges

that it alone has determined that the goods purchased hereunder will suitably meet the requirements of their

intended use. In no event will the manufacturer be liable for consequential, incidental or other damages. Even

if the repair or replacement remedy shall be deemed to have failed of its essential purpose under Section

2-719 of the Uniform Commercial Code, the manufacturer shall have no liability to Buyer for consequential dam-


Resellers/Buyers agree to also include this entire document including the warnings above in a conspicuous place and in a

conspicuous manner in writing to instruct users on the safe usage of the product.

This instructions manual should be read together with all other printed information such as catalogs, supplied by Grove Gear.



Instruction Manual

General Operation

1. Run the motor which drives the reducer and check the direction of reducer output rotation. Consult motor nameplate for

instructions to reverse the direction of rotation.

2. Attaching the load:  On direct coupled installations, check shaft and coupling alignment between speed reducer and loading

mechanism.  On chain/sprocket and belt/pulley installation, locate the sprocket or pulley as close to the oil seal as possible to

minimize overhung load. Check to verify that the overhung load does not exceed specifications published in the catalog.

3. High momentum loads: If coasting to a stop is undesirable, a braking mechanism should be provided to the speed reducer output

or the driven mechanism.

The system of connected rotating parts must be free from critical speed, torsional or other type

vibration, no matter how induced. The responsibility for this system analysis lies with the purchaser of

the speed reducer.


1. Mount the unit to a rigid flat surface using grade 5 or higher fasteners. The mounting fasteners should be the largest standard size

that will fit in the base mounting hole. Shim as required under flange or base feet which do not lie flat against the mounting surface.

2. For shipment of standard units, pipe plugs are installed in the unit and a vent plug is packed separately. After mounting the unit

in position, remove the appropriate pipe plug and install the vent plug in the location shown on page 5. These conditions are not

covered by warranty. Check for correct oil level. Contact the factory for level and vent recommendations on non-standard mounting

positions. Units with optional internal pressure compensating system do not use vents. See internal pressure compensating

system under Lubrication for further information.

3. Units supplied with an internal pressure compensation system, do not require a vent and can be used as supplied from the

factory. Do not loosen the nut holding the stem of the pressure compensator, and do not block the hole in the stem. Do not blow

pressurized air into the hole, and avoid spraying washdown chemicals directly into the hole.

4. Connect motor to speed reducer.

For safety, purchaser or user should provide protective shields over all shaft extensions and any moving

apparatus mounted on the unit. The user is responsible for checking all applicable safety codes in his

area and providing suitable shields.

Make certain that all tools and other items are clear from rotating parts before starting machine.

Stand clear, and start machine slowly to be sure all components are secure and operating properly.

Special consideration should be given to high inertia loads connected to the output shaft. Consult the

factory for further details.


Altering the mounting position may require special lubrication provisions which must be factory installed.

Do not operate the reducer without making sure it contains the correct amount of oil. Do not overfill

or underfill with oil, or injury to personnel, reducer or other equipment may result. Units with an internal

pressure compensation system are lubed and sealed for life, so in most applications it will not be neces-

sary to drain or re-fill the unit.

A unit cannot be used as an integral part of a machine superstructure which would impose additional

loads on the unit other than those imposed by the torque being transmitted either through a shaft-

mounted arrangement, and any shaft mounted power transmitting device. (e.g., sprockets, pulleys,


For safe operation and to maintain the unit warranty, when changing a factory installed fastener for any

reason, it becomes the responsibility of the person making the change to properly account for fastener

grade, thread engagement, load, tightening torque and the means of torque retention.

Inspect shafts and components for paint, burrs, or other imperfections before installing components. Do

not use excessive force or pounding to install components onto unit shafts, as this may cause damage

to shafts, bearings, or gears.

Test run unit to verify operation. If the unit being tested is a prototype, that unit must be of current

production configuration.

Phone: (262) 878-1221

Fax: (262) 878-1968












Instruction Manual

The precision-made gears and bearings in Grove Gear Speed Reducers require high-grade lubricants of the proper viscosity to main-

tain trouble-free performance.

Phone: (262) 878-1221

Fax: (262) 878-1968


For temperature ranges not shown, contact factory.

For lubrication of worm reducers (secondaries of helical worm reducers), contact factory.

Synthetic Lubricants

All standard reducers ordered from the factory are filled with Mobil Glygoyle 460 Polyglycol (PAG) lubricant to operate within a -10°

to120° F ambient temperature range. Prior to startup, verify that the oil is at the level shown on the drawings on page 5. Lubricant

type is stamped on all nameplates.

Change Intervals: Standard compounded lubricants (non-synthetic) should be changed every six months or 2500 operating hours,

whichever comes first. Factory installed synthetic lubricants should be changed only when performing maintenance that requires gearbox


Internal pressure compensating system: Reducers with the optional internal pressure compensating system do not require a vent and

can be used as supplied from the factory.

Oil & Weight Specifications

Always check for proper oil level after filling. Capacities vary somewhat with model and mounting position.




In the Food and Drug Industry (including animal food), consult the lubrication supplier for recommendation of

lubricants which are acceptable to the Food and Drug Administration and/or other authoritative bodies having

jurisdiction. Factory supplied PAGoilisacceptableforincidentalfoodcontact(NSFH1)foruseinandaround

food processing areas.

Do not mix different oils in the reducer. Grove Gear reducers are shipped standard with PAG lubricant – this





Housing Material











Size 1

19 LBS

Cast Iron

Size 2

22 LBS


Size 3

45 LBS


Size 1

9.5 LBS

Size 2

11.5 LBS

Stainless Steel

Size 1

22 LBS

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