Paccar Braden PD12C, Инструкция по установке, обслуживанию и ремонту

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7
HOIST INSTALLATION
1. Th e hoist should be mounted with the centerline of the
drum in a horizontal position. Th e mounting plane of the
base may be rotated in any position around this center-
line.
2. Because of the design of the mounting base, the direction
of line pull should only be as shown in the above illustra-
tion. Line pulls in any other direction must be approved
by BRADEN Engineering.
3. When mounting the hoist, use all eight (8) mounting holes
and grade 8 capscrews and nuts. Tighten to recommend-
ed torque.
It is important that the hoist is mounted on a surface that
will not fl ex when in use, and cause binding of the gear
train. Binding in the gear train will result in accelerated
wear and heat. Also, be sure the hoist is mounted on a fl at
surface. If necessary, use shim stock to insure the mount-
ing surface is fl at within 0.020 in. (0.5 mm). Use stainless
steel shim stock as required.
4. Th e vent plug must always be located above the horizontal
centerline. If the hoist is mounted on a pivoting surface,
be sure vent plug remains above the centerline in all po-
sitions. If necessary, reposition bearing support and vent
plug as follows:
A. Remove bearing support bolts.
B. Rotate bearing support until vent plug
is positioned correctly and bolt holes
are aligned.
C. Evenly tighten bolts to recommended
torque.
5. Hydraulic lines and components that operate the hoist
must be of su ffi cient size to assure minimum back-pres-
sure at the hoist motor ports. Th e hydraulic back-pressure
measured at the motor work ports must be less than 100
PSI (690 kPa) at full operating fl ow.
Back-pressure in ex-
cess of 100 PSI (690 kPa) will shorten motor sha ft seal
life and partially release the load holding brake.
Th e
standard hoist is supplied with the gear motor internal-
ly drained and connected the drain by-pass port on the
BRADEN brake valve. If high back-pressures are encoun-
tered, the motor should be externally drained directly to
the reservoir and the “DRAIN” port on the brake valve
capped. All piston motors
MUST
be drained directly
to the reservoir. Th e piston motor case drain port must
NEVER
be exposed to more than 42 PSI (290 kPa); sha ft
seal damage will occur.
6. Th e hoist should be mounted perpendicular to an imagi-
nary line from the center of the drum to the fi rst sheave
to insure even spooling. Make certain the fl eet angle does
not exceed 1-1/2 degrees.
TO LOAD
OR
FIRST SHEAVE
A = B
A
B
1/2
MIN
1
1/2
MAX
O
O
FLEET ANGLE
CenterLine
VENT PLUG
ABOVE CENTERLINE
This hoist m er
SIONS
BROKE 4012
U.S.A.
SERIAL NO. 76381
BRADEN Gearmatic
HOIST
BRADEN Gearmatic Service Manual.
76381 SERIAL NO.
U.S.A.
BROKEN ARROW,OK.,74012
WINCH DIVISIONS
This hoist must be maintained per
HOIST