16
10. Remove inlet head (37). Using a sling or eyebolts and nuts support the weight of the
inlet head, then remove bolts (21) and washers (20) (size 400: 39 and 38, respectively).
11. Install strongback assembly on the suction side of the pump case (1). This consist of
the following: strongback, blank, allthread, nuts, and hardened washers (size dependent
on pump; see special tools). A blank is required to ensure even compression occurs to
the face of the housing.
a) Install applicable allthread (see Special Tooling; Housing Removal) into the
suction side pump case bolt holes 180° apart. (location of bolts 21 or 39)
b) Install housing strongback, sliding the allthread thru the slots in the stongback.
c) Install nuts and hardened washers on the back side of the allthread leaving a 1”
gap between the strongback and the housing.
d) Install 1”-8 allthread into the strongback and tighten to secure a metal blank
against the suction housing.
e) Install 1” jam nuts on the open end of the strongback allthread.
CAUTION
ATTENTION
The suction and discharge housings are not bolted together and will separate. Please use
caution when removing.
f) Push the housing out of the discharge end by rotating the outboard jam nut.
g) As the discharge housing emerges support the weight using a sling.
h) After the discharge housing is removed, remove vent pins (8), balance tube (87),
and O-rings (4 and 82).
i) Remove the suction housing(5).
j) (GLH8L-400) Remove retaining ring (7) from the pump case.
PUMP ASSEMBLY
1. (GLH8L-400) Install retaining ring (7) into the pump case (1).
2. Install O-rings (82) in grooves of oil balance tube (87).
3. Install vent pins (8), oil balance tube (87), O-ring (4), and strainer sub-assembly (92) in
discharge housing (3).
NOTE
Either the inlet housing (5) or discharge housing (3) must be placed partly in the suction side or
the discharge side of the pump case (1) (size 400 – housing must be installed from the
discharge side) prior to meshing them together and installing the anti-rotation pin (9).
4. Assemble inlet housing (5) and discharge housing (3) together ensuring vent pins (8), oil
balance tube (87) and housing openings mesh together.
5. Ensure slot in the discharge housing (3) flange aligns with stop-pin hole in the case (1).
Install housing stop pin (9). Install O-ring (10) on plug (11) and thread plug into anti-
rotation pin opening.
Содержание CIRCOR GLH8L-400 Series
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