5
Westward Operating Instructions and Parts Manual
Operation
PuRGE AIR PRIOR TO OPERATION
Sometimes during shipment and/or
handling, air gets into hydraulic system
causing poor lifting performance. To
correct this:
1. Open release valve by turning it
counterclockwise two full turns.
2. Pump hydraulic unit about 6 full strokes.
3. Close release valve and continue
pumping until boom has raised several
feet.
4. Open release valve and slowly lower
boom.
NOTE:
Avoid overtightening release valve
- the tighter it is closed the harder it is to
crack open for very slow lowering.
OPERATING THE CRANE
NOTE:
Capacity of crane varies with
boom position. (See boom or
Specifications chart.)
1. Use boom in its retracted position,
whenever possible.
2. Extend boom only when necessary to
reach load.
3. Be sure load is within capacity limit for
boom position selected.
4. Close release valve (do not overtighten)
and pump to raise load to desired
height.
IMPORTANT:
If load is to be moved to
another location, raise only high enough to
clear floor. Move crane slowly and avoid
sudden stops that could cause load to
swing violently.
CHANGING BOOM ExTENSION
Do not try to change boom position while
under load. Do not exceed load capacity.
NOTE:
Check load rating located on
boom or on Specifications chart.
1. Place boom in horizontal position.
2. Move boom and secure with pin and “R”
clip.
Maintenance
GENERAL
1. Avoid overloads.
2. Keep hook clean and inspect
occasionally for damage.
3. Oil all moving joints periodically (at least
every 30 days) with a medium weight
machine oil or motor oil.
4. Keep sufficient hydraulic jack oil in
reservoir.
Do not use brake or
shock absorber
fluids. They have ingredients harmful to the
jack’s oil seals.
ADDING OIL
1. Make sure boom is in lowered position.
2. Remove oil fill plug from hydraulic unit.
3. Squirt clean hydraulic jack oil into hole.
NOTE:
In most cases, the addition of a
few ounces of oil is sufficient.
4. Fill to level of filler hole.
Do Not
Overfill.
RuST PREvENTION
1. Check ram and plunger every 3 months
for rust or corrosion.
2. Clean as needed and wipe with an oily
cloth.
NOTE:
When not in use always position
boom and pump plunger all the way down.
STORAGE
When not in use, store the crane with the
legs folded and secured with the bolt pins
and “R” lock pins (Model 3ZC72K only).
NOTE:
If necessary to move the crane
with legs in the storage position, do so
with care and only across a smooth,
level, seamless surface.
See illustration below for details of
securing legs for storage.
Models 3ZC71H, 3ZC72K and 5Z010G
