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4. Maintenance 4.5 Primary seals removal and fitting
4.5.6 Packed gland
Packed gland removal:
1. Loosen gland follower nuts.
2. Remove rotorcase with gland housing (7), packing (4) and gland follower (8) still assembled.
3. Loosen shaft sleeve screws (10) and remove sleeves (2) from shafts.
Packed gland fitting:
Check condition of all components replacing as necessary.
1. Lubricate the O-rings (1), fit to shaft sleeves (2) and locate on shafts.
2. Tighten screws (10) and fit slingers (9).
3. Fit gland spacer (3), gasket (6) and gland housing (7) to rotorcase.
4. Insert the packing rings (4), and lantern ring (5) if fitted, as shown ensuring joints are correctly spaced.
5. Loosely locate the gland follower (8) and nuts.
6. Refit rotorcase with packed assemblies over shaft sleeves.
7. Adjust the packed gland.
Packed gland adjustment:
Important: To prolong gland life some leakage is necessary.
1. Lightly and evenly tighten gland follower nuts.
2. Start pump. Run for 10 minutes, monitoring gland housing temperature and leakage. Gland housing temperatures should be
equal.
3. Adjust gland follower nuts by a
1
/
6
of a turn until leakage is at an acceptable rate.
Always replace gland guard after adjustment.
Item Description
1 Shaft sleeve O-ring
2 Shaft sleeve
3 Spacer
4 Packing rings
5 Lantern ring (if fitted)
6 Gasket
7 Gland housing
8 Gland follower
9 Ring slinger
10 Screw
10
