Dodge HYDROIL TORQUE-ARM HXT325C, Parts Replacement Manual

1

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 Dodge nor are 

the responsibility of Dodge. 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.

Parts Replacement Manual For HYDROIL

®

 TORQUE-ARM

®

 Speed 

Reducers Taper Bushed For Char-Lynn H, S, T and 2000 Series 

6B Spline Motors

SIZES: HXT325C, HXT425C/HXT415C, HXT525C

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

dodgeindustrail.com

for updated instruction manuals.

These instructions must be read thoroughly before installing or operating this product.

NOTE: The reducer is compatible with the Dodge Ability 

Smart Sensor, that can be installed in the adapter plug 

labeled “smart sensor”. The plug and sensor can be moved 

to different locations as required by mounting position.

REDUCER INSTALLATION

1.  On sizes HXT3B, HXT4B, and HXT5C, replace the plastic 

plug that protects the threaded hole in the reducer housing 
with the eyebolt supplied with the reducer.

2.  Determine the running position of the reducer (see Fig. 

1). Note that the reducer is supplied with either 6 plugs; 
4 around the sides for horizontal installations and 1 on 
each face for vertical installations. These plugs must be 
arranged relative to the running positions as follows:

Horizontal Installations 

– Install the magnetic drain plug 

in the hole closest to the bottom of the reducer. Install vent 
plug in topmost hole. Of the 2 remaining plugs on the sides 
of the reducer, the lowest one is the minimum oil level plug.

HORIZONAL APPLICATIONS

VERTICAL MOUNT

Position A

Position B

Position C

Position D

Position E

Position F

B = Breather

D = Drain

L = Level

P = Plug

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 
from sketches, 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 in positions “B” and “D” or 5º in positions “A” and “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 gages as required.