TM 10-4320-344-10
(2) Swing jack (4) down to vertical position.
Align holes in post (3) and
sleeve (5) .
Insert pin (1) through holes.
g .
Use turncranks (2) to lower jacks (4) until trailer (6) is secured in level
p o s i t i o n .
2.3.2.1 Unpacking.
Models 609-A and US636HCCD-1 are shipped with a protective plywood
cap.
The protective plywood cap will have been removed by unit maintenance as part
of the service upon receipt of materiel.
If depreservation was needed, it will
have been performed by unit maintenance.
2.3.2.2 Installation of Pumping Assemblies.
The suction port and discharge ports have a
groove for connection to a grooved pipe coupling.
Before operation, the suction
and discharge ports must be connected to a hoseline or pipeline.
Pumping assembly
installation instructions for the TWDS are contained in applicable TWDS technical
manual.
2.4 INITIAL ADJUSTMEMTS, CHECKS, MD SELF TEST.
Do not operate pump unless casing is
filled with water to level of suction
p o r t .
Operating a dry pump will cause overheating and damage unit.
The pumping assembly must be primed before initial startup.
Once primed, repriming
is not needed unless the pump loses prime because of a leak, hoseline or pipeline
break, or disconnection for maintenance.
If the pumping assembly is to be operated
as a standalone unit or source pump,
manually prime the pump by filling with water
through the pump fill plug or priming port cap.
If the pumping assembly is to be
operated as a boost pump,
it will receive priming water from the upline pump; but
trapped air must be released through the discharge elbow.
2.4.1 Priming of Lead Pump.
Refer to Figure 2-17 and prime the pumping assembly as
f o l l o w s:
a .
Remove fill plug (1) or priming port cap (2).
b .
Fill pump casing (3) with water to bottom of fill plug hole.
c .
Install fill plug (1) or priming port cap (2).
2-86
CAUTION
