Important selection information, Lubrication, Maintenance - standard units – Grove Gear E Series Right Angle User Manual

Page 4: General operation, Installation, Approved lubricant grade, Mobil pag 460 h1 synthetic lubricant

background image

Important Selection Information

Read ALL instructions and safety precautions prior to operating

unit. Injury to personnel or unit failure may be caused by improper

installation, maintenance, or operation.

Check to verify that the application does not exceed the capacities

published in the current catalog.

Written authorization from Grove Gear is required to operate or use

gear units in man lift or people moving devices.

The system of connected rotating parts must be free from critical

speed, torsional, or other type vibration, regardless of how induced.

The responsibility for this system analysis lies with the purchaser of

the gear unit.

Buyer shall be solely responsible for determining the adequacy of the

product for any and all uses to which the buyer shall apply the product.

The application by buyer shall not be subject to any implied warranties

of merchantability or fitness for a particular purpose.

Grove Gear E Series Reducer Models

These instructions apply to all Grove Gear E Series Reducer Models

18HE to 60HE.


All Grove Gear E Series Reducers are splash lubricated. The

unique design of the reducers permits nearly universal mounting by

placing a fill, drain and oil level plug at the proper location for mount-

ing positions. See mounting figures on this page.

Review the approved mounting positions and lubrication levels

identified in the Mounting Position Figures in Figure 1. Do not

deviate from the mounting positions or lubrication levels shown

without contacting Factory.

After selecting the position that the unit will be mounted but before

operating: Remove Fill Plug, clean threads on the removed plug and

the plug hole with degreaser. Install Breather Plug securely in gear

case. Note — Plug with breather must always be installed on top most

plug hole of gear case, opposite Drain Plug.

Variations From Normal Conditions

Input speeds higher than 1800 RPM may require an adjustment in oil

level. For vertical output, factory modifications (grease pack and nilos

ring) are required. For input speeds up to 1150 RPM, the high oil level

can be used, without factory modifications. This level, as specified in

the oil capacity chart will be at the center of the top bearing. It can

be checked with a dipstick to obtain the level specified in the chart

from the top housing face.


Use only Mobil PAG Synthetic oil.

Oil should be changed with regular frequency if unit is used in a severe

environment such as dusty or humid.

Oil, housings, and other components can reach high temperatures

during operation, and can cause severe burns. Use extreme care

when removing lubrication plugs and vents while servicing the unit.

Figure 1





















Maintenance - Standard Units

Your Grove Gear reducer has been tested and adjusted at Factory. Dismantling or replacement of components must be done by Grove

Gear to maintain the warranty.

1. Frequently check the oil level of the reducer. If oil level is low, (refer to Figure 1) add proper lubrication through the filler plug until

it comes out the oil level plug.

2. Inspect vent plug often to insure it is clean and operating.

3. Always check for proper oil level after filling. Do not overfill or underfill with oil, or injury to personnel, reducer, or other equipment

may result. Proper fill quantities in Table 1.

4. Do not mix different oils in the reducer.

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

shaft 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, 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. Failure to vent the unit can cause premature seal wear

or loss of seal and oil. 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. Do not blow pressurized air into the hole, and avoid

spraying washdown chemicals directly into the hole.

3. Connect motor to speed reducer.

E Series helical bevel gear reducers will likely backdrive. Use of a brake or external holding device is required if any evidence of

backdriving is not desired.

Special consideration should be given to high inertia loads connected to the output shaft. Consult the Factory for further details.

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.

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, couplings).

For safe operation and to maintain the unit warranty, when changing a Factory installed fastener for any reason, it be-

comes 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.

Mounting bolts should be routinely checked to ensure that the unit is firmly anchored for proper operation.


The Grove Gear line of speed reducers utilizes premium quality seals which are the state-of-the-art in sealing technology. Seals are,

however, a wear item and eventually need to be replaced. Replacement can be easily accomplished by following the steps below:

1. Remove the worn seal without damaging the shaft surface or the seal bore. This can be done by drilling a .062 diameter hole in the

seal casing (being careful not to drill into the bearing behind the seal). Install a #10 sheet metal screw into the hole and pry out the


2. Clean the seal bore of sealant.

3. Before installing the new seal, use electrical tape to cover any keyways on the shaft to prevent seal lip damage.

4. Grease the seal lips with bearing grease and apply a sealant to the seal bore.

5. Slide the seal into the shaft being careful not to fold the inner lip over on any shaft steps.

6. Press the seal into its bore with a sleeve that presses on the seal casing, being careful to keep the seal square in its bore.

Approximate Oil Capacities

Grove Gear E Series Reducers


Quantity (Pints)









Approved Lubricant Grade

Grove Gear Gear Lubricant


Ambient Temperature

-10 to 120 °F

-23 to 52 °C

Operating Temperature

To 225 °F

To 107 °C

AGMA Number


IS0-ASTM Viscosity Grade


Mobil PAG 460 H1 Synthetic Lubricant

All standard reducers ordered from Factory are filled with Mobil

Glygoyle 460 polyglycol (PAG) lubricant or equivalent suitable

for continuous option within a -10° F to 120° F ambient tempera-

ture range. Double and triple reduction units have separate oil

sumps and must be filled/checked independently. Lubricant type

is stamped on all nameplates.

Mobil PAG 460 H1 Synthetic Lubricant is recommended for E

Series gear reducers in most applications. This lubricant provides

the ultimate efficiency, thermal capacity, and wide operating

temperature range, excellent for low start-up temperatures and

high operating temperatures. Mobil PAG 460 is approved for

USDA/NSF H1 use in food processing facilities where there is

the possibility of incidental contact with food. This fully synthetic

polyglycol lubricant has high thermal and oxidative stability for

longer lubrication intervals, and is well suited for lubed-for-life

applications. The high efficiency reduces operating costs, and the

increased life reduces maintenance costs.

PAG Synthetic Lubricants are not compatible with any other

lubricants, and must never be mixed. Topping off with the wrong

lubricant could cause unit failure.

Food grade lubricants must always be stored separately from

non-food grade lubricants, to prevent the possibility of using the

wrong lubricant. Separate pumps and containers must always be

used with food grade lubricants, to prevent contamination.

Change Intervals

Factory installed synthetic lubricants should be changed only

when performing maintenance that requires gearbox disassembly.

Do not mix nonsynthetic and synthetic oil in the unit.

Do not mix PAG synthetic with any other oil type.

If unit is used in the food or drug industry (including animal food)

consult the petroleum supplier or Grove Gear for recommendations

of lubricants which meet the specifications of FDA, USDA and/or

other authoritative bodies having jurisdiction. Standard lubricants

are not suitable for these applications or these industries. Mobil

PAG 460 is approved for USDA/NSF H1 service.

Always check for proper oil level after filling. Capacities vary

somewhat with model and mounting position. Oil should rise to

bottom edge of level hole. Do not overfill.

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.


For safety, purchaser or user must provide protective guards over

all shaft extensions and any moving apparatus mounted on the unit.

The user is responsible for checking and complying with all appli-

cable safety codes in his area and providing suitable guards. Failure

to do so may result in bodily injury and/or damage to equipment.

Wear protective clothing and eye shields when installing or

maintaining unit and machine.

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, or by

any shaft mounted power transmitting device such as sprockets,

pulleys, or couplings.

Units ARE NOT to be considered fail safe or self locking devices.

If these features are required, a properly sized, independent

holding device must be utilized. Reducers are not to be used

as a brake.

Any brakes that are used in conjunction with a unit must be sized

or positioned in such a way so as to not subject the unit to loads

beyond the capacities published in the current catalog.

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.

Overhung loads subject shaft bearings and shafts to stress which

may cause premature bearing failure and/or shaft breakage from

bending fatigue, if not sized properly.

Make certain that the power supply is disconnected before

attempting to service or install the unit, or remove or install any

components. Lock out the power supply, and tag it to prevent

unexpected application of power.



Table 1

Table 2