TM 5-3610-286-20
2-48.
Suction Valve Housing Assembly and Motor.
This task covers:
a. Test
b. Remove
c. Repair
d. Install
INITIAL SETUP
Tools
Additional Personnel Requirement
6 mm combination wrench
Electrician MOS 35E20
13 mm combination wrench
6 mm hex key
0.050 x 0.375 x 8 in. flat-tip screwdriver
Multimeter
a. Test. (figure 2-98)
WARNING
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
2-238
When working on high-voltage components, always have an additional person
present, and keep one hand away from equipment to reduce hazard of current
flowing through vital organs of body. Remove all jewelry from fingers, wrists,
and neck prior to working on electrical components, Failure to do so may
result in death or serious injury.
Turn main power switch ON.
Ensure red button (1) on switch motor electrical box is out and gray button (2) is in.
Remove four screws (3) and cover (4).
Using a multimeter set to range higher than 220V ac, check for 220V ac between points L1
and L2, L1 and L3, and L2 and L3 on suction motor terminal strip (5).
Replace suction motor if 220V ac is present, or go to step 4 if 220V ac is not present.
Check for 220V ac between points T1 and T2, T1 and T3, and T2 and T3 on motor
protection switch (6).
Replace suction motor if 220V ac is present, or if 220V ac is not present, troubleshoot
printing press circuits using schematic (figure FO-1).
Turn main power switch OFF.
