Hale Q Series Muscle - Manual (Page 79)

77 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
Preventive Maintenance 
Packing Gland Adjustment
The packing gland is adjusted for a leakage rate of about 8 to 10 drops per minute at
150 PSI (1034 kPa). This slight leakage lubricates and cools the shaft and packing to
prevent burning and scoring.
Check the leakage rate, and adjust the packing gland if necessary. If the leakage rate
cannot be adjusted within satisfactory limits, replace packing. See Section 8.1 “Pack-
ing Seal Replacement” on page 131 for additional information.
Packing should be replaced every three (3) years.
Adjustment
1. Connect the pump to a fresh water source of about 150 PSI (1034 kPa). If this is
not possible, operate the pump at about 150 PSI from draft or from the booster
tank discharging through the booster line, another small nozzle, or circulating
back to the tank.
2. Count the drops (water leakage) per minute.
3. Shut down engine to make adjustments.
WARNING!
DO NOT RUN THE ENGINE WHILE MAKING PACKING ADJUSTMENTS.
4. Loosen the packing nut lock. The lock is either a spring-loaded pin. The end of
the lock fits into a slot in the gland. (See Figure 5-2: “Pump Packing Seal Assem-
bly” on page 86.)
5. To loosen or tighten the packing gland:
 Insert a screwdriver or rod into one of the slots. Refer to the Hale Service
Chart.
 To loosen the nut, turn it in the direction of engine rotation.
 To tighten the nut, turn it in the opposite direction to engine rotation.
6. Repeat Steps 1 through 3 and verify that leakage is correct. Tighten to REDUCE
leakage, loosen to INCREASE leakage.
Pump, Drive Line and Flange Bolts
Check all pump, drive line and flange bolts to ensure:
1. No bolts are missing.