Preventative Maintenance - Mountain MTN5119 Manual De Instrucciones

Operating Instructions • Preventative Maintenance
SETUP
PLEASE REFER TO THE EXPLODED VIEW DRAWING IN THIS
MANUAL IN ORDER TO IDENTIFY PARTS.
1. Secure the index #5 rear caster assemblies to the index #1 base
frame with the bolts and washers provided and in accordance with
the assembly drawing.
2. Loosely assemble the index #17 upright mast to the index #1 base
frame in accordance with the assembly drawing and finger tighten
the index #4 bolts, index #3 washers and index #2 nuts.
3. Loosely assemble the index #11 mast braces to the index #17
upright mast by finger tightening the index #18 bolt, index #15
washer and index #16 nut. Loosely assemble the opposite ends of
the index #11 mast braces to the index #1 base frame by finger
tightening the index #4 bolts, index #3 washers and index #2 nuts.
4. Tighten all the hardware mentioned in steps 2 and 3.
5. Install the index #9L and #9R leg extensions in the index #1 base
where the holes in the legs line up with the holes in the base as
shown in the assembly drawing. Secure the legs to the base using
the index #8 detent pins and index #7 R-clips.
6. According to the assembly drawing, secure the index #14 hydraulic
ram in between the mounting brackets on the index #17 upright
mast using the index #12 bolt, index #15 washer and index #16 nut.
Lean the ram up against the mast.
7. Secure the index #26 boom in between the mounting flanges
located on top of the index #17 upright mast using the index #30
bolt, index #23 washer and index #24 nut.
8. Line up the hole in the index #14 hydraulic ram with the holes in
the gussets of the index #26 boom and secure the ram to the boom
with the index #22 bolt, index #15 washer and index #16 nut. It may
be necessary to extend the ram to line up all the holes.
9. Pump the jack so the index #26 boom is horizontal to the ground.
According to the assembly drawing, slide the index #27 boom
extension inside the index #26 boom so the hole in the boom aligns
with any of the four holes in the index #26 boom. Secure the boom
and boom extension together using the index #25 detent pin and
index #7 R-clip.
10. Slide one of the chain links of the index #29 hook and chain
assembly through the slot in the bottom of the index #27 boom
extension. Feed the index #28 bolt through the hole on one side of
the extension boom, then through the chain link and finally through
the hole in the other side of the extension boom. Secure the index
#28 bolt with index #3 washer and index #2 nut.
11. Secure the index #19 push bar on the back side of the index #17
upright mast using the index #21 screws and index #20 washers.
12. Install the index #13 pump handle in the index #14 hydraulic ram
pump linkage when using or in the index #17 upright mast holder
for storage.
13. Sometimes air gets trapped in the hydraulic system during
shipment. An air bound hydraulic system feels spongy when
pumped and may not allow the jack to pump full incremental
strokes.
TO PURGE AIR FROM THE HYDRAULIC SYSTEM
a. Open the release valve by turning the handle in a
counterclockwise direction two full turns.
b. Pump the handle ten full strokes.
c. Close the release valve by turning the handle in a
clockwise direction until tight.
d. Pump the jack until the ram is extended to maximum
height.
e. If the condition remains, repeat steps "a" through "d"
until all the air is purged from the system.
OPERATING INSTRUCTIONS
This is the safety alert symbol used for the OPERATING
INSTRUCTIONS section of this manual to alert you to
potential personal injury hazards. Obey all instructions to
avoid possible injury or death.
OPERATION:
1. Before lifting, evaluate the work to be done by:
a. Determine the weight of the load to be lifted and secure the
boom extension in the boom in the appropriate hole position.
MTN5119 01/27/12
b. Determine the crane's boom extension in order to ensure there
is enough boom lift/travel to accomplish the work. IMPORTANT:
THE WORKING CAPACITY OF THE CRANE IS DETERMINED BY
THE LOCATION OF THE EXTENSION BOOM. THE CAPACITY
OF THE EXTENSION BOOM MUST EXCEED THE WEIGHT TO
BE LIFTED. Secure the boom extension in the boom with the
appropriate hardware provided, making sure it can not come
loose during use.
c. The crane's hook and chain assembly must be adjusted to the
right length and secured to the end of the boom to prevent the
hook from binding with the boom when lifting.
2. Make sure the crane's front wheels extend beyond the extension
boom's hook in order to avoid load tipping. Do not lift or move a
load with a center of gravity that extends beyond the sides of the
crane and the crane's front wheels.
3. Use balancers, levelers, slings, chains or any combination thereof
(which are capable of sustaining the load) around the load before
using the crane's hook to lift the load. Make sure the complete
setup is secure before lifting.
4. Attach the crane's hook to the balancer, leveler, sling, chain or any
combination thereof. Turn the release valve on the crane's hydraulic
ram in a clockwise direction until tight. Before pumping the crane's
jack handle, make sure the engine or load is free from all other
restraints and connections that would hinder the raising of the load.
Once the engine or load has cleared its location, make sure there
is no slope in the floor or any obstructions on the floor that could
cause the crane to tip and lose the load.
5. Immediately upon removal of the engine from the engine
compartment or load from its position, the engine or load must
be as close to the ground as possible when transporting. Lower
the load to the proper transport height by slowly and carefully
turning the hydraulic ram's release valve in a counter clockwise
direction. When approaching the transport height, start turning the
crane's release valve in a clockwise direction until tight. This same
procedure of lowering the load is also used for moving a load to its
final or temporary resting place or location.

PREVENTATIVE MAINTENANCE

This is the safety alert symbol used for the PREVENTATIVE
MAINTENANCE section of this manual to alert you to
potential personal injury hazards. Obey all instructions to
avoid possible injury or death.
1. Always store the crane in a well protected area where it will not
be exposed to inclement weather, corrosive vapors, abrasive dust,
or any other harmful elements. The jack must be cleaned of water,
snow, sand or grit before using.
2. Lubricate the wheels, casters, and all pivot points on the crane
according to an acceptable shop maintenance schedule.
Maintenance intervals are dependant on time and usage.
3. Every crane owner is responsible for keeping the crane labels clean
and readable. Use a mild soap solution to wash external surfaces
of the crane but not any moving hydraulic components. Contact
Mountain for a replacement label if your crane's label is not
readable.
4. Inspect the crane before each use. Do not use the crane if any
component is cracked, broken or bent. Do not use the crane if it
has loose or missing hardware or components, or is modified in any
way. Take corrective action before using the crane again.
5. It should not be necessary to refill or top off the crane's jack
reservoir with hydraulic fluid unless there is an external leak. An
external leak requires immediate repair which must be performed
in a dirt-free environment by qualified hydraulic repair personnel
who are familiar with this equipment. Authorized service centers are
recommended. IMPORTANT: In order to prevent seal damage and
jack failure, never use alcohol, hydraulic brake fluid, or transmission
oil in the crane's jack. Use jack oil, Chevron Hydraulic oil AW IS032,
or Unocal Unax AW150.
- 3 -