Repair
44 3A2012J
Disconnect the Air Motor
See manual 3A2315 for air motor service and parts
information. See F
IG
. 36 on page 45.
1. Relieve the pressure, see page 24.
2. Disconnect main air supply line from the inlet on the
air control panel (AE).
3. Disconnect grounding wire.
4. Disconnect items from the air motor:
a. Note location of all air hoses connected to air
motor then disconnect the hoses from the air
motor.
b. Remove top pin (AA) connecting upper catalyst
pump arm to air motor, then remove bolts (AB)
connecting lower catalyst pump arm to air motor
then remove catalyst pump and control arms
assembly (AC).
c. Remove two bolts (AD) securing air control
panel to air motor then remove air control
panel (AE).
5. Hold the flats of the air motor piston rod with a
wrench. Use another wrench to loosen the coupling
nut (A). Lower the coupling nut (A) enough to
remove the coupling collars (B), then remove the
coupling nut (A).
6. Use a 23 mm socket to remove the tie rod nuts (AF).
7. Use a 13 mm socket to loosen the top two
screws (AG) that secure air motor to mounting
bracket (AH).
8. Lift up on the air motor to remove it. The tie
rods (AJ) will remain attached to the air motor.
9. Use a socket on the flats of the tie rods (AJ) to
remove them from the bottom of the air motor.
10. See air motor manu al 3A2315 for repair procedures
and parts information.
Reconnect the Air Motor
See F
IG
. 36 on page 45.
1. Screw the tie rods (AJ) into the bottom of the air
motor. With a wrench on the flats of the tie rods,
torque to 50-55 ft-lb (68-75 N•m).
2. Align the tie rods (AF) with the holes in the pump
adapter. Carefully lower the air motor into place.
3. Attach the tie rod nuts (AF) to tie rods then torque to
50-60 ft-lb (68-81 N•m).
4. Install and tighten the screws (AG) that secure air
motor to mounting bracket (AH).
5. Install coupler spring guard and TSL reservoir.
6. With coupling
collars(B) in
place, hand
tighten the cou-
pling nut, then
torque to
75-80ft-lb
(102-108 N•m).
7. Connect the air
and fluid hoses.
8. Attached grounding wire to true earth ground.
ti12812a ti12813a
A
C
B
The equipment must be grounded to reduce the risk of
static sparking and electric shock. Electric or static
sparking can cause fumes to ignite or explode.
Improper grounding can cause electric shock.
Grounding provides an escape wire for the electric
current
ti12817a
B
A