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6 Maintenance
6. Position the outer guard so that there is less than 1/4 in. (0.64 cm) of exposed shaft.
7. Hold the guard in this position and tighten the three capscrews.
8. Open the isolation valves and inspect the pump for leaks.
9. Return the pump to service if it is not leaking.
6.9.4 Assembly references
6.9.4.1 Ordering parts
The pumps covered by this manual have been designed and built with certain
replaceable wearing parts. The recommended inventory of spare parts depends upon the
installation and the importance of continued operation.
For critical service requiring a minimum of "down time" a complete or "quick change"
rotating element is recommended.
For normal service, with repairs to be made in the field, the following parts are
recommended for stock.
• 1 set of bearings
• 1 set of wearing rings
• 1 set of gaskets, O-rings, and grease seals
• 2 mechanical seals (complete)
• 1 set of shaft sleeves
Parts should be ordered as far in advance of their use as possible since circumstances
beyond the control of the company may reduce existing stock. Not all parts are stocked
and must be manufactured for each order.
To facilitate rapid handling of your order for spare parts, be sure to include the following
information:
1. Serial number of the pump.
2. Catalog number of the part.
3. Quantity of each part.
4. Name of the part.
5. Material desired. (Parts will be furnished in original materials unless specified as a
material change. All material substitutions should be discussed with the factory.
6.9.4.2 Screw torque values
Capscrew torque in ft-lb (Nm)
Capscrew
Head
type
marking
1/4
SAE grade
6 (8)
2
Brass and
or
4 (5)
stainless
steel
SAE grade
10 (14)
5
*The M6 set screw has a rating of 10 N m.
42
If...
The pump does not have a motor
saddle support bracket
5/16
3/8
13 (18)
25 (34)
10 (14)
17 (23)
20 (27)
35 (47)
G&L Pumps Series A-C 8300 Base Mounted Centrifugal Pump INSTRUCTION MANUAL
Then...
Insert the spacer washer between the holes located closest to the motor in
the outer guard and install the two remaining capscrews.
Do not tighten the capscrews.
Capscrew diameter (in inches)
7/16
1/2
5/8
38 (52)
60 (81)
120 (163)
27 (37)
42 (57)
83 (113)
60 (81)
90 (122)
180 (244)
3/4
7/8
190 (258)
210 (285)
300 (407)
130 (176)
200 (271)
300 (407)
325 (440)
525 (712)
800 (1085)
1
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