Troubleshooting - BRADEN PD12C Series Installation Maintenance And Service Manual

o o
F -40 F -40 -30 -30
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C -40 C -40 -30 -30
NOTE: SHADED TEMPERATURE RANGE IN THE CHART ABOVE NOT RECOMMENDED FOR SEVERE APPLICATIONS SUCH AS: OFFSHORE NOTE: SHADED TEMPERATURE RANGE IN THE CHART ABOVE NOT RECOMMENDED FOR SEVERE APPLICATIONS SUCH AS: OFFSHORE
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CRANES, SUSTAINED FAST DUTY CYCLES OR FREQUENT LIFTING. CRANES, SUSTAINED FAST DUTY CYCLES OR FREQUENT LIFTING.
Planetary hoists are factory filled with Mobilgear 600 XP 150, or equivalent. Consult your oil supplier for other equivalent
oils if required.
Mobilgear 600 XP 150
Mobilgear 600 XP 220
OIL CAPACITIES:
(PD12C/PD15B) 01, 02 & 22 DRUM - 6 PINTS (2.8 L)
(PD12C/PD15B) 04, 05 & 23G DRUM - 7 PINTS (3.3 L)
(PD12C/PD15B) 06 DRUM - 18 PINTS (8.6 L)
(PD12C/PD15B) 24G & 25G DRUM - 11.5 PINTS (5.4 L)
(PD17A) 27G DRUM - 20 PINTS (9.5 L)

TROUBLESHOOTING

If a hoist ever exhibits any sign of erratic operation, or load control diffi culties (i.e. load creeping or chattering)
appropriate troubleshooting tests and repairs should be performed immediately. Continued operation in this
manner may result in property damage, serious personal injury or death.
TROUBLE
A
The hoist will not lower the load or
not lower the load smoothly.
RECOMMENDED PLANETARY GEAR OIL RECOMMENDED PLANETARY GEAR OIL
PREVAILING AMBIENT TEMPERATURE PREVAILING AMBIENT TEMPERATURE
-20 -20 -10 -10 0 0 10 10 20 20 30 30
MOBILGEAR 600 XP 150 OR EQUIVALENT
AGMA 4 EP, ISO VG 150 AGMA 4 EP, ISO VG 150
-20 -20 -10 -10
Mobil Shell Shell Shell
Omala 150 Omala 150 Omala 150
Omala 220 Omala 220 Omala 220
PROBABLE CAUSE
1. The problem could be a plugged
or loose pilot orifi ce. The pilot ori-
fi ce is a small pipe plug with a hole
drilled through it, located behind the
pilot port fi tting on the brake valve.
If it becomes plugged, it will prevent
the pilot pressure, from the mani-
fold, from opening the brake valve.
If it becomes loose, it will allow an
unregulated amount of oil in to op-
erate the brake valve which cause
erratic brake valve operation.
2. The friction brake may not be
releasing as a result of a defective
brake cylinder seal.
NOTE: If the brake cylinder seal
is defective you will usually fi nd oil
leaking from the hoist vent plug.
40 40 50 50 60 60 70 70 80 80
MOBILGEAR 600 XP 220 OR EQUIVALENT
AGMA 5 EP, ISO VG 220 AGMA 5 EP, ISO VG 220
MOBILGEAR SHC 150
SYNTHETIC OR EQUIVALENT SYNTHETIC OR EQUIVALENT
0 0 10 10 20 20
Chevron Chevron Chevron
Gear Compounds EP 150 Gear Compounds EP 150 Gear Compounds EP 150
Gear Compounds EP 220 Gear Compounds EP 220 Gear Compounds EP 220
NOTE: Capacities are approximate. Refer to "Oil
Level" earlier in this section
12
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90 90 100 100 110 110 120 120 130 130 F F
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30 30 40 40 50 50 C C
Texaco Texaco Texaco
Meropa 150 Meropa 150 Meropa 150
Meropa 220 Meropa 220 Meropa 220
REMEDY
Remove the pilot hose and fi tting
from the brake valve, then use a
5/32 inch Allen wrench to remove
the pilot orifi ce. The diameter of the
orifi ce is approximately .020 inches.
Clean and install the pilot orifi ce
tightly in the brake valve.
Check brake cylinder seal as fol-
lows:
A. Disconnect the swivel tee from
the brake release port. Connect a
hand pump with accurate 0-2000
psi gauge and shut-off valve to the
–4 J.I.C. fi tting in the brake relea
port.
Amsoil cross
AMS ISO220-EP
AMS ISO150-EP
se