To Assemble The Liquid End; Power End; J " Type Bearing - Goulds Pumps JC Installation, Operation And Maintenance Instructions

Preventive Maintenance
WARNING:
explosion.
5. Remove cap screws or bolts which fasten casing (100) to hub disc (184). Slide casing from
6. Disassemble gland (107) from stuffing box.
7. Remove bolts which fasten hub disc (184) and bearing frame (228). Carefully pull hub disc
8. Pull or drive shaft sleeve (126) from shaft (100) if replacement is necessary.

To assemble the liquid end

1. Shaft (122) and shaft sleeve (126) must be clean and free of burrs. Install sleeve (126) on
2. Carefully guide hub disc (184) stuffing box over impeller end of shaft. Secure hub disc (184)
3. Position casing (100) with gasket into hub disc (184) fit. Be sure discharge is in proper
4. Install impeller (101) with gasket onto shaft (100) Drawing impeller tight on shaft threads
5. Place suction disc liner (100B) into casing fit. With O-ring (412F) in position on liner O.D.,
6. Set impeller clearance according to section Impeller Clearance in the bearing section of this
WARNING:
parts, resulting in a spark and heat generation.
clearance or not following any of the proper procedures can result in sparks, unexpected heat
generation and equipment damage.
7. Install packing (106), seal cage (105) and gland (107). Refer to assembly drawing for
8. Install pump half of coupling or sheave. Realign pump and driver. Connect pump section
9. Start-up instructions. Refer to General Instructions

Power end

"J " type bearing

The "J" type bearing assembly uses medium-heavy ball bearings. On the small size "J"
bearings, double row ball bearings are used for combined loading. The larger sizes utilize
separate radial and thrust ball bearings. Adjustment of nose clearance can be easily
accomplished without bearing disassembly.
18
NOTICE:
If impeller is frozen on shaft, restrain the impeller, attach a spanner wrench to coupling end
of shaft, and give the wrench a sharp blow.
Do not apply heat to hub or nose of threaded impeller. There is a danger of
hub disc fit.
from shaft sleeve (126). Packing (106) and seal cage (105) may be left in stuffing box
during disassembly of hub disc.
shaft.
to bearing frame (228) with bolts (370C).
orientation. Fasten casing to hub disc with cap screws (370J).
firmly secures shaft sleeve. Seal sleeve to impeller with RTV silicone.
install suction disc (182). Fasten suction disc to casing with cap screws (370E).
manual.
Improper impeller adjustment could cause contact between the rotating and stationary
The impeller clearance setting procedure must be followed. Improperly setting the
proper packing sequence and to section Stuffing Boxes in the General Instructions.
and discharge to pipe line. Connect auxiliary lubrication lines.
Model JC Installation, Operation and Maintenance Instructions