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WARNING: Because of the possible danger to person(s) or 

property from accidents which may result from the improper 

use of products, it is important that correct procedures be 

followed. Products must be used in accordance with the 

engineering information specified in the catalog. Proper 

installation, maintenance and operation procedures must 

be observed. The instructions in the instruction manuals 

must be followed. Inspections should be made as necessary 

to assure safe operation under prevailing conditions. Proper 

guards and other suitable safety devices or procedures as 

may be desirable or as may be specified in safety codes 

should be provided, and are neither provided by ABB nor 

are the responsibility of ABB. This unit and its associated 

equipment must be installed, adjusted and maintained by 

qualified personnel who are familiar with the construction 

and operation of all equipment in the system and the 

potential hazards involved. When risk to persons or property 

may be involved, a holding device must be an integral part 

of the driven equipment beyond the speed reducer output 

shaft.

WARNING: To ensure the drive is not unexpectedly 

started, turn off and lock-out or tag power source before 

proceeding. Failure to observe these precautions could 

result in bodily injury. 

WARNING: All products over 25 kg (55 lbs) are noted on the 

shipping package. Proper lifting practices are required for 

these products.

Instruction Manual

 

Dodge

®

 Torque-Arm

 Speed Reducers

Straight Bore & Taper Bushed

TXT805

TXT905

These instructions must be read thoroughly before installation or operation. This instruction manual was accurate at the time of 
printing. Please see baldor.com for updated instruction manuals.

Note! The manufacturer of these products, Baldor Electric Company, became ABB Motors and Mechanical Inc. on 

March 1, 2018. Nameplates, Declaration of Conformity and other collateral material may contain the company name of 

Baldor Electric Company and the brand names of Baldor-Dodge and Baldor-Reliance until such time as all materials have 

been updated to reflect our new corporate identity.

arranged relative to the mounting positions as follows:

Horizontal Installations

 -Install the magnetic drain plug in 

the hole closest to the bottom of the reducer. Throw away 
the tape that covers the filter/ventilation plug in shipment 
and install plug in topmost hole. Of the 3 remaining plugs 
on the sides of the reducer, the lowest one is the minimum 
oil level plug.

Vertical Installations

 -Install the filter/ventilation plug in 

the hole provided in the top face of the reducer housing. 
Use the hole in the bottom face for the magnetic drain plug. 
Of the 5 remaining holes on the sides of the reducer, use 
a plug in the upper housing half for the minimum oil level 
plug.

F-POSITION

E-POSITION

P

P

L

L

D

D

B

B

VERTICAL MOUNT

HORIZONTAL APPLICATIONS 

B=BREATHER               D=DRAIN                    L=LEVEL                   P=PLUG

D

D

D

D

L

L

L

L

P

P

P

P

B

B

B

B

D-POSITION

C-POSITION

B-POSITION

A-POSITION

Figure 1 - Mounting Positions

The running position of the reducer in a horizontal application is 
not limited to the four positions shown in Figure 1. However, if 
running position is over 20º either way in position “B” and “D”, 
or 5º either way in position “A” or “C,” the oil level plug cannot 
be safely used to check the oil level, unless during the checking 
the torque arm is disconnected and the reducer is swung to 
within 20º for position “B” or “D” or 5º for position “A” or “C” of 
the positions shown in Figure 1. Because of the many possible 
positions of the reducer, it may be necessary or desirable to 
make special adaptations using the lubrication fitting holes 
furnished along with other standard pipe fittings, stand pipes 
and oil level gauges as required.

Installation

NOTE: This r

educer is compatible with the ABB Ability 

Smart Sensor, that can be installed in the adapter plug 

labelled “smart sensor”. The plug and sensor can be 

moved to different locations as required by mounting 

position.

1.  Replace the plastic plugs that protect the threaded holes 

in the reducer housing with the eyebolt supplied with the 
reducer.

2.  Determine the mounting position of the reducer (Figure 1). 

Note that the reducer is supplied with either 4 or 7 plugs; 
4 around the sides for horizontal installations and 1 on 
each face for vertical installations. These plugs must be 

Summary of Contents for Torque-Arm TXT805

Page 1: ...dated to reflect our new corporate identity arranged relative to the mounting positions as follows Horizontal Installations Install the magnetic drain plug in the hole closest to the bottom of the reducer Throw away the tape that covers the filter ventilation plug in shipment and install plug in topmost hole Of the 3 remaining plugs on the sides of the reducer the lowest one is the minimum oil lev...

Page 2: ...ion adjustment when using V belt drive 6 7 RIGHT ANGLE OR MAY VARY 20 IN TENSION OR COMPRESSION TORQUE ARM AND BELT TAKE UP TORQUE ARM MAY BE LOCATED TO THE RIGHT IF DESIRED Figure 4 Angle of Torque Arm Lubrication CAUTION Unit is shipped without oil Add proper amount of recommended lubricant before operating Failure to observe this precaution could result in damage to or destruction of the equipm...

Page 3: ...25 F Torque Arm Reducer Size TXT805 TXT905 301 400 220 220 201 300 220 220 151 200 220 220 126 150 220 220 101 125 220 220 81 100 320 220 41 80 320 220 11 40 320 320 1 10 320 320 Table 2 Lubrication Recommendations ISO Grades Output RPM ISO Grades For Ambient Temperatures of 15 F to 60 F Torque Arm Reducer Size TXT805 TXT905 301 400 150 150 201 300 150 150 151 200 150 150 126 150 150 150 101 125 1...

Page 4: ...protect gear reducers during periods of extended storage Preparation 1 Drain oil from the unit Add a vapor phase corrosion inhibiting oil VCI 105 oil by Daubert Chemical Co in accordance with Table 3 2 Seal the unit airtight Replace the vent plug with a standard pipe plug and wire the vent to the unit 3 Cover all unpainted exterior parts with a waxy rust preventative compound that will keep oxygen...

Page 5: ...5 TXT905 66 Bushing Assembly 1 272048 2 15 16 Bore 1 272045 3 3 16 Bore 1 272032 272056 3 7 16 Bore 1 272033 272077 3 15 16 Bore 1 272034 272078 4 3 16 Bore 1 272035 272079 4 7 16 Bore 1 272080 4 15 16 Bore 68 Lockwasher 6 419013 419014 Key Bushing to Shaft 2 15 16 Bore 1 443247 3 3 16 Bore 1 443247 3 7 16 Bore 1 443171 443249 3 15 16 Bore 1 443173 272119 4 3 16 Bore 1 443174 272108 4 7 16 Bore 1 ...

Page 6: ...05 Straight Bore and Taper Bushed Speed Reducers NOTE The two digit numbers are for reference only Order parts by the six digit numbers in the Parts List Each six digit number is a complete identification of the part or assembly ...

Page 7: ...For ease of tightening screws make sure screw threads and threaded holes in bushing flanges are clean A tap can be used to clean out the threads Use caution to use the proper size tap to prevent damage to the threads 4 Remove the outside bushing the reducer and then the inboard bushing Disassembly 1 Drain all oil from the reducer 2 Position reducer on its side and remove all housing bolts Gently t...

Page 8: ...100 C cSt ISO VG AGMA GRADES GRADES GEAR OILS SUS 100 F SUS 210 F SAE KINEMATIC VISCOSITIES SAYBOLT VISCOSITIES 200 300 100 90 80 70 60 55 50 45 40 VISCOSITIES CAN BE RELATED HORIZONTALLY ONLY VISCOSITIES BASED ON 96 VI SINGLE GRADE OILS ISO ARE SPECIFIED AT 40 C AGMA ARE SPECIFIED AT 40 C SAE 75W 80W AND 85W SPECIFIED AT LOW TEMPERATURE EQUIVALENT VISCOSITIES FOR 100 F AND 200 F ARE SHOWN SAE 90 ...

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