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WARMAN PUMP-maintenance-manual

PUMP LINER ASSEMBLY INSTRUCTIONS

Warman pumps are available in a variety of liner configurations (metal lined, elastomer lined, or a combination of both). A few sizes are also available in an unlined configuration (AHU designation). This manual contains assembly instructions for all liner configurations. Refer to your pump components diagram to determine the applicable configuration. For lined pumps locate your model number in Table 6-1 below to determine the appropriate pump assembly section of the manual. For unlined pumps refer to Section 6, Page 19. Do not use petroleum based lubricants on liner components. Use only mild hand soap if required.

Table 6-1 • Liner Configuration Chart

PUMP ASSEMBLY

METAL LINERS - TWO PARTS FITTING SEAL RING, FRAME PLATE LINER INSERT, VOLUTE LINER SEALS, VOLUTE LINER, IMPELLER AND COVER PLATE For two piece metal lined pumps, the volute liner and "front liner" (throatbush) are one piece. This applies for pump sizes 1.5/1 AH, 2/1.5 AH, 3/2 AH, 4/3 AH, 1.5/1 CHH, 20 AL, 50 BL, 75 CL, 100 DL, and 150 EL pumps.

1. Fit VOLUTE LINER SEAL (124 or 125). The seal is one of two types: • O-RING: VOLUTE FRAME SEAL (125): 1.5/1 AH, 2/1.5 AH, 3/2 AH, and 20 AL pumps. The seal is an o-ring and it is fitted at a later stage. • C-SECTION – VOLUTE LINER SEAL (124): 1.5/1 CHH, 50 BL, 75 CL, 100 DL, 150 EL, and 4/3 AH pumps. The seal is a C-Section and is activated by internal pressure. Fit it (flat face in) into the frame plate groove. Use rubber contact cement if required. 2. Fit SEAL RING (122 or 109). This seal is al so of two different types.

FOR 1.5/1 AH, 2/1.5 AH, and 3/2 AH PUMPS Fit C-Section SEAL RING (122) onto rim of stuffing box or expeller ring. To aid in holding the seal in position during subsequent assembly steps, it is recommended that the seal be cemented to the stuffing box/expeller ring using rubber cement, (preferably of the dry contact type), with sufficient drying time allowed before contacting the two parts. Only apply the cement at four to six locations on bottom of the C-section in the seal, rather than all the way around. This will ensure that the seal is not unduly restrained during compression.

FOR 20 AL, 50 BL, 75 CL, 100 DL, 150 EL, and 1.5/1 CHH PUMPS Fit O-RING SEAL (122 or 109) into groove around the perimeter of the stuffed box. If needed, use rubber cement as indicated above to hold o-ring in position during assembly. 3. Fit FRAME PLATE LINER INS ERT (041) and IMPELLER.

For most of the sizes listed the frame plate liner insert is NOT held with studs, but is held by a locating seat engaging with the frame plate - (1.5/1 AH, 2/1.5 AH, 3/2 AH, 20 AL, 50 BL, 75 CL, 100 DL, and 150 EL) or by the volute liner (4/3 AH). Only the 1.5/1 CHH pump uses studs.

FOR 1.5/1 AH, 2/1.5 AH, 3/2 AH, 20 AL, 50 BL, 75 CL, and 100 DL PUMPS • Obtain correct type of impeller as specified for the particular application. Rest the impeller, boss up, on a flat surface. Apply anti-seize lubricant to the impeller thread. Place FRAME PLATE LINER INSERT (041) over impeller boss, then screw impeller on shaft. Make certain that the various seals have not shifted and that the locating seats on the back of the frame plate liner insert engage fully with the frame plate. • Check CLAMP B OLTS (012) on side of base to ensure they are snug just enough to hold the bearing assembly horizontal, but not locked in place. Assuming shaft is bare, fit SHAFT KEY (070) in keyway and bolt SHAFT WRENCH (306) onto the shaft. If the pump is installed, remove v-belts or separate coupling hubs. While holding impeller with a bar between the vanes, turn shaft with wrench or v-belt pulley and tighten impeller on shaft. Do not over-tighten. To hold the frame plate liner insert temporarily in its correct position, move the bearing assembly back by means of the nut on the ADJUSTING SCREW (001). • Fit VOLUTE FRAME SEAL (125) – (O-Ring) over the rim of frame plate liner insert and next to the frame plate.

FOR 4/3 AH AND 150 EL PUMPS • Obtain correct type of IMPELLER as specified for the particular application. Elastomer impellers require use of BOSS CAP (379). To keep it in position during assembly tape it to the impeller hub. Rest the impeller (boss up) on a flat surface. Apply anti-seize lubricant to the impeller thread. Place FRAME PLATE LINER INSERT (041) over the impeller boss, then screw impeller onto the shaft. Make certain that the various seals have not shifted.

PUMP ASSEMBLY

METAL LINERS – THREE PARTS FITTING FRAME PLATE LINER INSERT, VOLUTE LINER, SEAL RINGS, VOLUTE LINER SEALS, IMPELLER O-RING, IMPELLER AND COVER PLATE. IMPORTANT - READ INSTRUCTIONS FOR HANDLING VOLUTE ON PAGE 8 BEFORE PROCEEDING.

1. Apply rubber cement i n expeller o r shaft spacer groove. Depending on pump type, fit either IMPELLER O-RING (064) or (217), or SHAFT SLEEVE O-RING (109) into the expeller. Make sure that o-ring is held in position. 2. Fit SEAL RING (122). There a re two different ty pe seals. a. The C-section type fits on the r im of the stuffing box or the metal expeller ring. Use rubber cement to hold the seal in position, avoiding the possibility of the seal shifting when the frame plate liner is attached. b. The o-ring ty pe fits an o-ring. Fit it in the groove in the rim of the stuffing box or the metal expeller ring. Use rubber cement to hold seal in position if needed. 3. Fit VOLUME FRAME SEAL (124). The seal is of C-section and it is actuated by internal pressure. Fit it (flat face in) into the frame plate groove. Use rubber cement to hold the seal in position, avoiding the possibility of the seal shifting when the frame plate liner is attached. 4. Fit FRAME PLATE LINER INS ERT (041) and IMPELLER. The frame plate liner insert has provisions to accommodate studs for mounting insert into frame plates. Proceed as follows: 1. Screw and tighten STUDS (026) into tapped holes pro vided in the frame plate liner inserts. 2. Suspend LIFTING TUBE (302) from a hoist. Stand the frame plate liner insert on edge and push the lifting tube into insert hole. Lift tube along with the insert and slide the tube over shaft thread. Line up studs, or bolts, with holes and push liner insert against frame plate. Make sure that the various seals have not shifted. Screw on nuts, but do not tighten, then remove lifting tube. 3. Check CLAMP BOLTS (012) on side of base to ensure they are just tight enough to hold the bearing assembly horizontal, but not to lock it. Assuming the shaft is bare, fit SHAFT KEY (070) in keyway and bolt SHAFT WRENCH (306) onto the shaft. If the pump is installed, remove v-belts or separate coupling hubs. Hold the shaft and screw LOCATING NUT (303) on the shaft. The conical face will locate the frame plate liner insert in its correct position. Tighten up all studs on the insert, then remove locating nut. 4. Obtain correct type of IMPELLER as specified for particular pump application. Elastomer impellers require use of a BOSS CAP (379). To keep it in position during