Viking Pump TSM340.1: SG-10, SG-14 - Manual (Page 6)

SECTION TSM 340.1 ISSUE D PAGE 6 OF 11
ASSEMBLY:
1. Be sure to clean the bracket and casing thoroughly. If the
bearings were removed, install new pump bearings into
each bore using an arbor press. If carbon graphite, Refer
to “Installation of Carbon Graphite Bushings” below.
MODELS BEARING PRESS DEPTH
SG-10 / SG-410 0.060” - 0.080” (1.5 - 2 mm)
SG-14 / SG-414 0.070” - 0.090” (1.8 - 2.3 mm)
MODELS RECOMMENDED CAPSCREW TORQUE
SG-10 / SG-410 80 ft. lbs. (110 Nm)
SG-14 / SG-414 100 ft. lbs. (140 Nm)
2. Press the lip seal into the pump bracket using an arbor
press and install snap ring.
DANGER!
Before starting the pump, be sure all drive
equipment guards are in place.
Failure to properly mount guards may result in
serious injury or death.
ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART
2 Bracket 8 Lip Seal 14 Crescent Snap Rings (4 Required)
3 Bearings (4 Required) 9 Spacer 15 Gear Pins (2 Required)
4 Internal Snap Ring 10 External Snap Ring 16 Gears (2 Required)
5 Outboard Bearing 11 O-ring for Casing 17 Alignment Pins (2 Required)
6 Seal Holder 12 Drive Shaft 19 Casing
7 O-ring for Seal Holder 13 Driven Shaft 20 Capscrews (4 Required)
FIGURE 3
EXPLODED VIEW – MODELS SG-410 AND SG-414 MECHANICAL SEAL PUMPS
MECHANICAL SEAL PUMPS
6. To remove the gears (16) from the shafts, remove both
snap rings (14) from both sides of the gear. The gears
should then slide freely off the shaft. NOTE: There is a
small pin (15) located under the gear which can fall out of
its groove when the gears are removed.
7. Inspect the gears and shafts for wear. Replace as needed.
8. Remove the internal snap ring (4) and lip seal (8) from the
bracket.
9. Inspect the bearings or bushings (3). If the bearings or
bushings need to be replaced:
Remove the bearings from the bracket and casing using a
Blind Bearing Puller. To remove carbon graphite or silicon
carbide bushings, use a cold chisel or punch to break the
bushing. Be careful not to damage the bore.
3. Assemble the shaft / gear assemblies. Install one snap
ring (14) onto the shaft. Place the gear pin into its groove
on the shaft. Slide the gear over the pin and lock into place
using the second snap ring. NOTE: Proper snap ring
orientation can be seen in Figure 2. The gear pin blocks
the flow path along the gear ID in one of the grooves.
Make sure the snap rings do not block the other.
4. Coat shaft / gear assemblies with light oil. Place both
shafts in the casing with the drive shaft (longer shaft) on
the top (nameplate side).
5. Lubricate the casing O-ring using a compatible lubricant
and place it in the groove of the casing.
6. Slide the pump bracket over the gear and shaft assemblies
until flush with the casing.
7. Place the capscrews into the bracket and tighten evenly.
4 5
6 7
8 9
10
2
20 3
17
11
12
13
14
15
16
19