instruction manual

instruction manual
INSTRUCTION MANUAL
FOR 6,000 LBS ENGINE HOIST
MODELS COVERED:EHN-60-T
VESTIL MANUFACTURING CORP.
2999 NORTH WAYNE STREET, P.O. BOX 507, ANGOLA, IN 46703
TELEPHONE: (260) 665-7586 -OR- TOLL FREE (800) 348-0868
FAX: (260) 665-1339
URL: WWW.VESTILMFG.COM EMAIL: [email protected]
SPECIFICATION
While every effort has been made to ensure accuracy of information given in this
manual is correct at the time of going to print, we reserve the right to change
specification without notice.
Lifting Capacity Position 1 …………………………………………………… 6,000 lbs
Lifting Capacity Position 2 .…………………………………………………… 4,000 lbs
Lifting Capacity Position 3 ……………………………………………………. 3,000 lbs
Lifting Capacity Position 4 ……………………………………………………. 2,000 lbs
Maximum Lifting Height (minimum boom extension) ……………
Maximum Lifting Height (maximum boom extension) ………
84”
96 9/16”
Boom Reach Position 1 ………………………………………………………….
51 7/8”
Boom Reach Position 2 ………………………………………………………….
60”
Boom Reach Position 3 ………………………………………………………….
68”
Boom Reach Position 4 …………………………………………………………
96 9/16”
Height of Frame ………………………………………………………………………. 7 7/8”
Length of Frame Retracted ……………………………………………………… 54 ½”
Length of Frame Extended ……………………………………………………… 83 ¼“
Overall Height ………………………………………………………………………….
61”
Width of Frame …………………………………………………………………….
30 1/8”
Distance between center of rear wheels ……………………………
28 ½”
WARNING

Do not over load. Overloading can cause damage or failure of the engine crane.

Never use the crane on uneven floor surface as this could result in the crane
tipping over

Always lock the legs and jib in position before lifting the load

The nuts and bolts supplied with the crane are all high strength and shouldn’t
be substituted for inferior types

Before each use ensure that all nuts and bolts are correctly fitted and tight

Never exceed the safe working loads indicated on the jib.
ASSEMBLY INSTRUCTIONS
NOTE: During the assembly procedure, bolts & nuts should be hand-tightened. Once
assembly is complete, bolts and nuts must be fully tightened.
1.
Attach two 1 ½” x Ø4 swivel casters (#6) to base frame using nuts (#9),
lock washers (#10) & washer (#11).
2.
Referring to the spare parts drawing, insert two legs (#G) into the base (#F)
and secure the legs in place using 2 set screws (#12).
3.
Attach the main support post (#C) to the base assembly (#F) using bolts
(#8), flat washers (#11) and nuts (#9).
4.
Now secure the boom (#B) to the main support post (#C) using bolt (#17),
flat washer (#22) and nut (#14).
5.
Attach support brackets (#D) to top of the main support post using bolt
(#8), flat washers (#11) and nut (#9).
6.
Attach support brackets (#D) to the frame base using bolts (#8), flat
washers (#11), spring washers (10) and nuts (#9).
7.
Connect bottom of cylinder (#E) to main support post (#C) using bolt (#13),
flat washer (#22) and nut (#14).
8.
Hold the boom up with the help of a helper, connect top of the cylinder (#E)
to boom using bolt (#15), flat washer (#21) and nut (#16).
9.
Slide boom extension (#A) into the main boom (#B), secure in one of the
four positions using lock pin (#19).
10.
Tighten all the bolts, lock washers & nuts.
OPERATING INSTRUCTIONS
WARNING!
Δ THIS DOUBLE PUMP LONG RAM IS DESIGNED FOR LIFTING PURPOSE
ONLY. NOT FOR SUPPORTING LOADS.
Δ DO NOT LOAD BEYOND IT’S RATED CAPACITY
IMPORTANT: It is possible that air has got into the hydraulic cylinder system,
causing poor lifting performance. Purge any air from the system by fully opening
release valve (turn handle counterclockwise), then while holding the boom down,
operate pump handle rapidly several times.
TO RAISE LOAD
Close release valve by turning handle COUNTERCLOCKWISE very slowly. The
speed of lowering the load is controlled by how much you turn the handle.
MAINTENANCE
IMPORTANT: Do not use brake fluid or jack oil in the hydraulic system. If oil is
needed, use an anti-wear hydraulic oil with a viscosity grade of 150 SUS at 100°F,
(ISO [email protected]°C), or a non-synthetic transmission fluid.
Avoid mixing different grades/types of oil DO NOT use brake fluid, alcohol,
glycerin, detergent motor oil or dirty oil. Improper fluid can cause internal damage
to long ram.
When adding oil, be VERY CAREFUL, not to permit dirt or foreign matter to get into
the system. Check ram & plunger every 3 months for any signs of rust or
corrosion. Clean as needed and wipe with an oily cloth. When not using the long
ram, always leave the shop crane in fully lowered postion.
TROUBLE SHOOTING
Problem
Will not hold load
Possible
Action
Cause
Dirt on valve seats
1. Lower lifting boom. Close the release
valve and remove oil filter plug.
2. Place one foot on the leg and pull up the
lifting boom to its full height by hand.
3. Open release valve to lower the lifting
boom.
4. Worn seals.
Will not lift load
Air block
1. Open the release valve and remove oil
filler plug.
Will not lift to the full height
2. Pump handle a couple of full strokes and
close the release valve.
Pump feels unsteady under load.
Pump will not lower completely
Pump will not lift its full height
The reservoir could
Check the oil level. Remove the filler plug.
be over filled
Pump feels unsteady under load
Low hydraulic oil
Fill the oil to correct level
level
Pump feels unsteady under load
The pump seal
Replace cup seal with new one
could be worn out
Will not lower completely
Air block.
Release air from hydraulic pump by removing
filler plug.
Unit requires
lubrication
Oil external moving parts.
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