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11
TABLE 1 - COOLING OIL - Dielectric
SUPPLIER GRADE
BP Enerpar SE100
Conoco Pale Paraffi n 22
Mobile D.T.E. Oil Light
G & G Oil Circulating 22
Imperial Oil Voltesso-35
Shell Canada Transformer-10
Texaco Diala-Oil-AX
Woco Premium 100
F-1.4) Pressure Test:
Before checking the pump for leaks around the shaft
seal, square ring, and cord inlet, the oil level should be
full as described in section F1.3. Apply pipe sealant to the
pressure gauge assembly and tighten into fi ll plug hole
(see fi g.4). Pressurize motor housing to 10 P.S.I. Use a
soap solution around the sealed areas and inspect joints
for “air bubbles”. If, after fi ve minutes, the pressure is still
holding constant, and no “bubbles” are observed, slowly
bleed the pressure and remove the gauge assembly.
Replace the pipe plug using a sealant. If the pressure
does not hold, then the leak must be located.
F-2) Impeller and Volute Service:
F-2.1) Disassembly and Inspection:
To clean out body (20), or to replace impeller (17),
disconnect power, remove hex bolts (21), and vertically lift
motor and seal assembly from body (20). Clean out body
if necessary . Clean and examine impeller (17) for pitting
or wear and replace if required. Inspect gasket (19) and
replace if cut or damaged. The impeller (17) is threaded
onto the shaft and to remove, unscrew impeller, holding
shaft with a large screwdriver. Remove exclusion seal (16)
and replace if needed.
F-2.2) Reassembly:
Before installing impeller (17), inspect threads on shaft
and impeller to assure that they are clean. Place exclu-
sion seal on shaft with the thin lip toward the motor (see
section F-4.3). Apply a thread-locking compound to shaft
threads and screw impeller onto shaft and tighten. Rotate
impeller to check for binding. Position gasket (19) on body
and install impeller and motor housing on pump body.
Apply thread locking compound to each cap screw (21),
thread into body, and torque to 11 ft. lbs. Check for free
rotation of impeller.
F-3) Motor, Bearing and Cable Service
F-3.1) Disassembly and Inspection:
BP & SE Series, Motor - To examine or replace the mo-
tor (1) or bearing (4), remove body and impeller as per
section F-2.1. Drain oil from motor housing as per section
F-1.2. Remove gland nut (9a) and friction ring (9b) from
motor housing (14). Pull cord through opening and discon-
nect the motor wires from the terminals on cable (9), see
Figure 5. Remove socket head screws (15) and lift motor
housing (14) from seal plate (2). Remove o-ring (13) and
inspect for breaks. Loosen motor screws and pull motor
(1) straight up and off seal plate (2). Inspect all parts for
signs of wear and check motor resistance values.
On “AU” series pumps gland nut (29a) and friction ring
(29b) must also be removed from motor housing (14) and
pulled though opening and motor wires from the terminals
on cable (2), see Figure 5.
BP-HT & SE-HT Series, Motor - To examine or replace
the motor (1) or bearing (4), remove body and impeller
as per section F-2.1. Drain oil from motor housing as
per section F-1.2. Remove socket head screws (15) and
loosen gland nut (9a) and push cord through while lifting
motor housing (14) off of seal plate (2). Disconnect motor
wires from cord set (9). Pull cord through motor housing
along with two friction rings and one gromment. (See
Figure 6). Remove o-ring (13) and inspect for breaks.
Loosen motor screws and pull motor (1) straight up and
off seal plate (2). Inspect all parts for signs of wear and
check motor resistance values.
On “HTAU” series pumps gland nut (29a), must also be
loosened from motor housing (14). Push cord through
while lifting motor housing (14) off of seal plate (2).
Disconnect motor wires from cord set (29). Pull cord
through motor housing along with friction rings (29b) and
grommet (29c), see Figure 6.
Check capacitor (7) with an Ohm meter by grounding the
capacitor by placing a screwdriver across both terminals
and then removing the screwdriver. Connect Ohm meter
(set on high scale) to terminals, if needle moves to infi nity
( ∞ ) then drifts back, the capacitor is good. If needle does
not move or moves to infi nity ( ∞ ) and does not drift back,
replace capacitor (7).
10 PSI
AIR
Pressure Gauge Assembly
(See Parts List)
Remove Pipe
Plug
FIGURE 4
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