F-1031, Section 4202
Page 9 of 10
CAUTION
Pump overheating hazard.
May cause damage to the pump.
Circulate enough water through the pump to prevent overheating.
WARNING
!
Truck movement hazard.
May cause serious personal injury.
Stop engine, set the parking brake and chock the wheels before going
under truck to adjust packing.
1.
Engage pump per appropriate operating instructions. Operate the
pump at the capacity pressure shown on the serial plate for ten (10)
minutes.
CAUTION
Observe the stuffing box drip rate from the side of the truck.
2.
Observe leakage. Normal leakage is 10-120 drops per minute.
3.
If drip rate is considered high, stop the engine and tighten the packing
gland nuts 1/2 to 1 flat (maximum of 1/6 of a revolution). Make ap
propriate adjustments starting with 1 flat, when approaching the final
adjustment reduce to 1/2 flat. This reduces the possibility of over tight
ening.
Tighten the gland nuts equally to ensure that the packing
gland goes on straight.
Gradually reducing leakage during the first
hour of operation will result in a better seal over a longer period of
time.
CAUTION
Stopping the leakage entirely at this point will cause the packing
to overheat.
4.
Operate the pump at the capacity pressure shown on the serial plate
for two (2) minutes to let packing run in, then observe the drip rate.
WARNING
!
Packing Gland and Pump Body Temperature Hazard. May result in
serious burns.
Heat is dissipated through the cross-section of the packing, transfer
ring the heat to the packing gland and pump body.
5.
Repeat steps 3 and 4 until the drop rate is acceptable.
NOTE: After adjusting the packing, the pump must pass the va
cuum test described on the next page.
Final Assembly
To complete final assembly, perform the following:
1.
Connect the propeller or drive shaft to the pump transmission.
2.
Connect the intake and discharge piping.
3.
Connect the cooling and drain lines, electrical wiring and similar equip
ment to the pump and accessories.
4.
Fill the pump transmission with lubricant as directed in the transmission
operation and maintenance instructions.
