General Machine Products 70483 Hydraulically Limited Cable Puller - Manual (Page 9)

8.2 C
ALIBRATION OF
P
ULLER
1. Consult cable manufacture specifications for maximum pull rating and proper
capstan size for cable being installed.
2. Refer to calibration chart for corresponding pressure setting for desired maxi-
mum pull and capstan diameter. For example, to set your hydraulic puller to a
maximum pull of 600 Lbs. using a 32" diameter capstan, a pressure setting of
1,000 PSI is to be used. See chart below.
3. Calibrate your hydraulically limited cable puller as follows.
1. Turn off the hydraulic power source.
2. Disconnect hose from fitting labeled "OUTPUT TO PULLER"
3. Turn on hydraulic power source and depress foot pedal.
4. Adjust "Force control knob" until pressure gauge reads desired pressure
setting based on capstan size from chart.
5. Release foot pedal, turn off hydraulic power source and reconnect hose to
fitting labeled "OUTPUT TO PULLER".
8.3 O
PERATION OF
P
ULLER
1. Install capstan onto hydraulic motor shaft and turn hydraulic power on.
2. Wrap pulling tape or cable around capstan in a clockwise rotation beginning
at the outer edge of the capstan closest to the puller motor at least (4) times
being careful not to over-lay the pulling tape or cable. Entire hydraulic puller
assembly may have to be moved slightly to properly align the tape or cable
being pulled with the capstan to avoid a cross-over condition of the pulling
tape or cable.
3. In order to prevent it from becoming entangled with the capstan or hydraulic
puller, the pulling tape or rope must be guided off the capstan. (See Figure 3a
on page 7)
9
Hydraulic Pressure Setting (PSI)
Desired Capstan Diameter
Pull 25” 30” 32” 40” 42”
600 lbs. 700 900 1000 1300 1400
750 lbs. 800 1100 1200 1700 1800
1000 lbs. 1150 1500 1650 2200 2350