TM-5-2330-378-14-P
SEMITRAILER, LOWBED: 40 TON CONSTRUCTION EQUIPMENT TRANSPORTER M870 AND M870A1
TECHNICAL MANUAL; OPERATOR'S, UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
JUNE 1999
TM-5-2330-378-14-P - Page 78 of 524
TM 5-2330-378-14&P
3-8.
AIR RESERVOIRSSERVICE.
ThisTaskCovers:
Servicing
InitialSetup:
Tools/TestEquipment:
- Commonno. 1 toolset (Item6, AppendixB)
SERVICING
a.
Turn off air supply to semitrailer.
b.
Unhook gladhands (1) from truck tractor air hose.
WARNING
Wear protective goggles for draining pressurized air from air reservoirs. Failure to
wear protective goggles when opening air reservoir drain cocks could cause eye
injury.
NOTE
• There are three air reservoirs on the semitrailer.
• On the M870, the drain cocks on the front and middle air reservoirs are operated
by turning control levers. The drain cock on the rear air reservoir on the M870 and
the drain cocks on all three air reservoirs on the M870Al
are operated by turning
the knob on the drain cock.
C.
Open drain cock (2). Use control levers (3) on M870 front and middle air reservoirs (4).
d.
Allow air reservoir (4) to drain fully, then close drain cock (2). Repeat for other two air reservoirs (4).
e.
Connect gladhands (1) to truck tractor air hose.
f.
Turn on air supply to semitrailer at truck tractor.
9.
Check all three drain cocks (2) for leaks by listening for hissing. If drain cocks (2) are leaking, notify Unit
maintenance.
3-16
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