TM 55-4920-428-13
(2) Remove the oil fill plug.
(3) Add oil through the fill port until oil appears at the oil level port.
(4) Install the oil level and oil fill plugs.
3-6. Electrical Unit Push On/Push Off Switch
e
a.
b.
c.
d.
f.
g.
h.
i.
3-7.
a.
b.
c.
d.
3-8.
a.
b.
c.
d
3-9.
a.
b.
c.
d.
Lamp Replacement.
(See fig. 6-3.) Pry the lens retainer from the switch (64, 65,66, or 67). Use a knife blade or equal.
Remove the retainer and lens by pulling upon the retainer until the lens unsnaps from the switch.
Remove the lens and packing from the retainer.
Pull the defective lamp from the lamp socket. Use fingers to remove lamp.
Insert the replacement lamp into the lamp socket. Use fingers to insert lamp.
Position the lens and packing into the retainer. Position the retainer on the switch.
Snap the retainer into position by pressing down.
Snap the lens into position by pressing down.
Perform an operational check of the lamp (para 2-6).
Electrical Unit Knob Replacement.
(See fig. 6-3.) Loosen the two recessed screws on the knob (49 and 50).
Remove the knob from the shaft.
Position the replacement knob on the shaft.
Tighten the two screws on the flat.
Hydraulic Unit SOLENOID Lamp Replacement.
(See fig. 6-4.) Unscrew the lens (51) from the SOLENOID switch (50).
Lift out the defective lamp.
Insert the replacement lamp.
Position the lens on the switch and hand tighten.
Hydraulic Unit Selector Valve Handle Replacement.
Remove screw in top of selector valve.
Remove defective handle by pulling up.
Position the replacement handle on the valve.
Install the screw into the valve, Tighten the screw.
3-10. Hydraulic Unit Relief Valve Knob Replacement.
a. Remove knob by rotating counterclockwise. Do not remove the spring under the knob.
b. Make sure that spring is on shaft. Install replacement knob. Hand tighten the knob.
3-11. Hydraulic Unit Shutoff Valve Knob Replacement.
a. Pry round head pin from knob. Use a knife blade or equal.
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