SECTION 8 – RECHARGE, INSPECTION, AND MAINTENANCE
PAGE 8-4 REV. 0 2014-MAY-02
MAINTENANCE (Continued)
4. Check integrity of each component.
a. Confirm Electric Manual Actuator (EMA) is:
• Securely mounted
• No damage, wear, or abrasions
• Red strike button intact
• Ring pin intact and in place
• Rubber boot intact
• Connector secure
• Visual inspection seal intact
• Bracket secure
b. Confirm Electric-Pneumatic Actuator is:
• Securely mounted
• All actuator components appropriately tightened
• Release Circuit Drop Cable connection tight
• 1/4 in. brass plugs securely tightened in pneumatic
ports OR - if optional pneumatic actuation, 1/4 in.
actuation hose fittings securely in place
c. Confirm Spot Thermal Detector is:
• Securely mounted and heat shields in place
• Proper location
• Inspect for damage to face of detector
• Verify tightness of the heat shield and retaining nut.
Torque not to exceed 25 in-lb (2.82 N•m).
5. If optional Pneumatic Manual Actuator is part of system
refer to appropriate system manual for inspection and
maintenance instructions (latest edition):
• LT-A-101-10/20/30 Manual
(Part No. 24327)
• LT-A-101-50/125/250 Manual
(Part No. 427865)
• LVS Manual
(Part No. 427109)
6. If system includes optional pneumatic manual actuator(s),
carefully remove the LT-10-R cartridge(s) from the pneu-
matic manual actuator(s), install shipping cap(s), and set
aside in a safe location.
7. Check and perform maintenance on each Electric-Pneu-
matic Actuator (Part No. 439569) (installed on each agent
tank expellant gas cartridge):
a. Remove power from system both external and internal
as applicable.
b. If attached, remove Release Circuit Drop Cable from
Electric-Pneumatic Actuator.
CAUTION
!
When handling the PAD, always point actuating end
away from yourself and others. On electrical initiation,
PAD operates very quickly and a small brass disk
forcefully separates from actuating end. Physical injury
may occur from contact with the actuating pin and/or
the detaching disk.
c. Check PAD and maintenance records for installation
date of PAD to determine if PAD needs replacement.
Refer to Five-Year PAD Replacement instructions, page
8-6.
d. Confirm PAD o-ring is in place; if absent, check inside
actuator and remove. (New PAD comes with new
o-ring.) See Figure 8-7.
CAUTION
Failure to remove loose o-ring from inside actuator
body can result in improper positioning of the PAD and
incorrect system operation.
e. Examine actuating end of PAD to determine if PAD has
actuated.
Note: Occasionally the actuating pin will pull back into
the PAD. Inspect actuating end where pin extends. If
pin is visible, PAD has actuated. See Figure 8-8.
f. If PAD actuated, remove PAD from the connector and
discard. If possible, determine why PAD was actuated.
Do not install new PAD until testing is complete,
see Step 9.
Find and discard small brass disk ejected
from actuating end of PAD during release.
FIGURE 8-7
CHECK PAD
009246
FIGURE 8-8
CHECK END OF PAD
009243
g. If needed, remove 1/4 in. gas actuation hose(s). Loosen
and slide base of Electric-Pneumatic Actuator sideways
to remove from each expellant gas cartridge.
CAUTION
If Electric-Pneumatic Actuator is difficult to remove
puncture pin is not fully retracted. Do not force.
CHECKFIRE 210
Detection and Actuation System
PAD O-RING
CHECK PAD
IF PIN IS VISIBLE
PAD HAS
ACTUATED
