Zenith B Spécifications télécharger pdf (Page 8)

BPB Series

Assembly

Considerable care should be taken to

prevent wedging or jamming. Never

force the parts together. They will drop

into place if properly aligned.

1) Provide a can of clean oil, preferably

SAE-50 motor oil or mineral oil.

2) Press Arbor (5) and Dowels (10) into

Rear Side Plate (3) using the Driven

Metering Gear (7) as a guide for

press-ing the arbor upright and per-

pendicular to the plate. See Figure 2.

3) Install Port Seal Screws (23 & 25) in

both plates with new Gaskets (22 &

24). Repeat for Shaft Seal Screw (31)

and Gasket (30).

4) Fix the Rear Side Plate (3) in a bench

vise inside face up.

5) Lubricate the drive shaft bearing hole

and arbor with a few drops of oil. See

Figure 3.

6a) LIP SEAL DESIGN. Place Driving

Metering Gear Assembly onto plate.

Place the shaft into bearing hole,

rotating several times to insure free

rotation.

6b) METAL SEAL DESIGN. Place Ball

(29) into depression on shaft seal

screw. Assemble loose-fit Driving

Metering Gear (6), Drive Shaft (4)

and Key (8). Place stub end of drive

shaft into bearing hole and rotate

several times to insure free rotation.

7) Position Driven Metering Gear (7)

over the Arbor (5), rotating several

times to insure free rotation.

8) With a thin film of oil on your fingertips,

lubricate the gear pockets of the

Center Plate (2).

9) Carefully lower Center Plate (2) over

gears.

10) Lower Spacer (9) over Dowel (10).

11) Place a drop of oil into each port in

Center Plate (2) (i.e. either side of

meshing gear teeth) and turn Drive

Shaft (4) several times to insure free

rotation. See Figure 3.

12) Carefully lower the Front Side Plate

(1) over the Dowel (10) and Drive

Shaft (4).

13) Flip pump over in the vise, clamp to

Front Side Plate (1), and insert

Binder Screws (21) until finger tight.

Check for free rotation.

14) Tighten binder screws to 60 lbs.-in.,

50% of the recommended tightening

torque. Follow the order shown in

Figure 4 depending on whether the

pump has 4 or 6 binder screws. Be

sure the pump turns freely.

15) Tighten binder screws to the recom-

mended tightening torque of 120

lbs.-in.; follow the order shown in

Figure 4.

Note: If the pump will not turn freely after

each component is installed, then

the last piece installed needs addi-

tional attention or replacement.

16) Flip pump over and fix it in a vise. Set

leading chamfer of Lip Seal (14) into

Hub (12) opening. For Metal Seal

Design pumps, place Compression

Spring (16) into hole on top of Drive

Shaft (4).

17) LIP SEAL DESIGN only. Use of the

Zenith

Lip Seal Installation Guide is

recommended to prevent lip seal

damage. [P/N 14-00131-0001-1

(Items A,B & C)].Set guide (B) down

over Lip Seal (14) and against the

Hub (12) in order to compress the

seal O.D. and ease its entry into the

hub. See Figure 5.

18a) LIP SEAL DESIGN. Holding the Lip

Seal Guide (B) against the Hub

(12), press the Lip Seal Inserter (C)

down firmly, but gently, until Lip

Seal (14) is seated against the

bottom of the hole. Be careful not

to crush the seal. See Figure 5.

18b) METAL SEAL DESIGN. Place the Uni-

versal Seal Coupling (14) over the

drive shaft and slide the Coupling

Housing (13) over the coupling. The

Anchor Washer (15) is then inserted

into the coupling housing right on

top of the coupling itself. The two

ears on the anchor washer fit into

grooves in the housing. See

Diagram 1 Inset.

19) LIP SEAL DESIGN only. Place “O” Ring

(32) over the Drive Shaft (4) and

using the Bullnose (A) on end of

Drive Shaft (4), carefully lower hub

and seal assembly down over Drive

Shaft (4). See Figure 6.

20a) LIP SEAL DESIGN. Remove Bull-nose

Installation Tool and rotate Hub (12)

until grease fitting is facing in the

desired orientation.

20b) METAL SEAL DESIGN. Place the Hub

(12) on top of the Coupling Housing

(13) and orient the Grease Fitting

(26) as desired.

21) Insert Hub Screws (27) and tighten

to first 32 lbs.-in. in a circular rotation,

then complete tightening to recom-

mended torque of 64 lbs.-in.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 19 20

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Zenith B Spécifications Page 8

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