User Manual

• Shaft sleeve (126)
• Outboard bearing (112A)
• Inboard bearing (168A)
• Casing gasket (351)
• Frame-to-adapter gasket (360D)
• Bearing-housing retaining ring (361A)
• Bearing lockwasher (382)
• Bearing locknut (136)
• Impeller O-ring (412A)
• Bearing-housing O-ring (496)
• Outboard labyrinth-seal rotary O-ring (497F)
• Outboard labyrinth-seal stationary O-ring (497G)
• Inboard labyrinth-seal rotary O-ring (497H)
• Inboard labyrinth-seal stationary O-ring (497J)
• Lantern ring half (105) (packed stuffing box)
• Stuffing box packing (106) (packed stuffing box)
• Packing gland (107) (packed stuffing box)
• Impeller gasket (428D) (XLT-i and i17 only)
Interchangeability drawings
3198 interchangeability
Table 21: 3198 interchangeability drawing
Description
Shaft and Bearing
Frame Assembly
Adapter Seal Chamber Impeller Casing Size
Model 3198 STi
1–3/8 in. Shaft
Dia. Max
BHP-40 HP
1.5x3-7 AB
Model 3198
MTi 1–3/4 in.
Shaft Dia. Max
BHP-122 HP
1.5X3-10 A50
3X4-10 A70
3X4-13 A40
Lubrication conversion
Frame lubrication conversion
NOTICE:
• Never mix greases of different consistencies (NLGI 1 or 3 with NLGI 2) or with different thickeners.
For example, never mix a lithium-based grease with a polyurea-based grease. Doing so may result in
decreased performance.
• Remove the bearings and old grease if you need to change the grease type or consistency. Failure to
do so may result in equipment damage or decreased performance.
Use a grease that is suitable for high temperatures when you have frame pumpage temperatures greater
than 350°F (177°C). Ensure that mineral-oil greases have oxidation stabilizers and a consistency of NLGI
3.
Most pumps use Sunoco 2EP grease. High temperature units with a pumpage temperature greater than
350° F (177°C) use Mobil SCH32.
Maintenance
102 Model 3198 i-FRAME Installation, Operation, and Maintenance Manual