Ingersoll-Rand ES50T Manual Do Utilizador

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10. Motor Assembly replacement

NOTE HOLE

LOCATION

BLUE

RED

(Dwg. TPD1052)

Unsolder the two motor leads. Note the location of the red 

and blue leads to the hole in the side of the motor.

Solder the motor leads to a new motor as illustrated above.

Carefully check the Reverse Switch (9) to make sure that the 

motor runs in the correct rotation as indicated on the Switch. 

If the motor does not run in the correct rotation, reverse the 

leads.

Plate for the motor leads.
11. Pushrod replacement

Remove the Gear Case (37) from the Motor Assembly.

Pull the Pushrod (35) out of the motor and replace it with a 

new one.

Pull the Pushrod (46) out of the Gear Case. Lightly coat a new 

Pushrod with Ingersoll Rand No. 67 Grease and insert it into 

the Gear Case.

After replacing both Pushrods, adjust the timing of the Switch 

Plate (10) as described in Step 7(e).

a.

b.

c.

a.

b.

c.

d.

12. Gear replacement

Pull the Gear Case (37) away from the Motor Assembly.

The joint between the Gear Case and Clutch Housing (53) is a 

left-hand thread. Using one wrench on the gear case flats and 

another on the flats of the Clutch Housing, turn the Housing 

clockwise to separate the two parts.

Remove the Cam (43), two Cam Pins (44), Thrust Washer (42), 

Spindle Assembly (40) and Gear Head Assembly (38) from the 

clutch end of the Gear Case.

Inspect the Gear Head Planet Gears (39), Spindle Planet  

Gears (41) and the gear teeth in the Gear Case for chipped or 

broken teeth. Apply a small amount of Ingersoll Rand No. 67 

Grease to the Gears, Gear Case and Cam.

Insert the Gear Head Assembly, Planet Gears first, into the 

clutch end of the Gear Case. Make certain the Planet Gears 

mesh with the gear case spline.

Insert the Spindle Assembly, gear end leading, into the Gear 

Case. Make certain the Spindle Planet Gears mesh with the 

pinion of the Gear Head. Install the Thrust Washer, Cam,  

Cam Pins and Collar into the Gear Case.

The joint connecting the Gear Case to the Clutch Housing is a 

left-hand thread. Thread the Housing onto the Gear Case in a 

counterclockwise direction and tighten the joint to  

21 ft-lb (28.5 Nm) torque.

13. Place the assembled motor, gearing and clutch unit in the left 

side of the Housing.

14. For Models ES45T and ES5OT, place the right side of the 

Housing against the left side and install the three Housing 

Screws.

 

For Model ES5OTC, place a bead of Perma-Lok GasketMaker* 

HH190 around the edge of Shield Plate and the mating edges of 

the Housing. Place the right side of the Housing against the left 

side and install the three Housing Screws.

15. For Models ES45T and ES5OT, thread the Coupling (55) onto the 

Gear Case and tighten it with a wrench.  

For Model ES5OTC, thread the Nose Collar (61) onto the Gear 

Case and tighten it with a wrench.

a.

b.

c.

d.

e.

f.

g.

Screwdriver fails 

to rotate  (reverse or 

forward)

Is there power to the tool?

Defective Power Cord Assembly (6). Replace the Power Cord 

Assembly if necessary.

No power from the Controller. Repair or replace (see Controller 

Service Manual).

1.

2.

Does the Trigger Switch click when the Trigger 

is depressed?

Defective Trigger Switch (8). Replace the Trigger Switch.

Does the Trigger Switch turn on power to 

the Motor?

Trigger pad worn. Replace the Trigger (17).

Can the bit be turned by hand when the tool 

is unplugged?

Planetary gearing defective. Replace the Planet Gears (39 or 

41), Spindle Assembly (40) and Gear Head Assembly (38).

2.   Clutch defective.  Repair or replace the clutch.

1.

Does the tool operate properly when bumped 

and jiggled?

Defective power cord.  Replace the Power Cord Assembly (6).

Forward/Reverse Switch defective. Replace the Forward/

Reverse Switch (9).

Defective solder connection.  

Check all solder connections; resolder where necessary.

Defective Armature.  Replace the Motor Assembly.

Brush contact defective. Replace the Brush Assembly.

1.

2.

3.

4.

5.

Does brush wear appear normal?

Worn or defective Brushes. Replace the Brush Assemblies (24).

Defective Commutator. Replace the Armature (31).

1.

2.

Does motor appear to be in good condition?

Carbon buildup or dirt on Armature (31).

Clean the Armature using a good electrical contact cleaner 

and blow dry.

1.

2.