Hyster H177, Периодическое техническое обслуживание

Страница: 42 / 80

Maintenance Procedures Every 250 Hours or 6 Weeks 8000 SRM 707
BRAKE FLUID
WARNING
Loss of fluid from the reservoir indicates a
leak. Repair the brake system before the lift
truck is used. Replace the brake fluid in the
brake system if there is oil, water, or dirt in
the system.
Check fluid level in reservoir for master cylinder. See
Figure 12. The brake fluid reservoir is under the
floor plate, at the master cylinder. Add brake fluid
as necessary. Use the brake fluid shown in the Main-
tenance Schedule.
HYDRAULIC TANK BREATHER
WARNING
Cleaning solvents can be flammable and toxic
and can cause skin irritation.
When using
cleaning solvents, always follow the recom-
mendations of the manufacturer.
The breather for the hydraulic tank is next to the dip-
stick for the hydraulic oil. Clean breather in solvent.
Install new breather if air will not flow through it
easily.
BATTERY
WARNING
The acid in the electrolyte can cause injury.
If the electrolyte is spilled, use water to flush
the area. Use a solution of sodium bicarbonate
(soda) to neutralize the acid. Acid in the eyes
must be flushed with water immediately. Wear
eye protection.
Batteries generate explosive fumes. Keep the
vents in the caps clean. Keep sparks or open
flame away from the battery area.
Do not
make sparks from the battery connections.
Disconnect the battery ground cable when
doing maintenance.
Check battery electrolyte level every 250 hours of op-
eration. See Figure 11. Heavy-duty or high-temper-
ature operations will require more frequent checks.
It is not necessary to check the electrolyte level on
a maintenance-free battery. A low electrolyte level
can cause the alternator warning light to come on or
cause battery damage during lift truck operation.
Keep battery and cable terminals clean. Check elec-
trolyte level (unless maintenance-free battery). Keep
electrolyte level above separators and plates. Use
distilled water. Do not fill battery more than to bot-
tom of internal filler neck.
FORKS
WARNING
Never repair damaged forks. Do not heat, weld,
or bend the forks. Forks are made of special
steel using special methods. Replace damaged
forks.
1. Check heel and attachment points of forks with
a penetrant or magnetic particle inspection.
2. Measure thickness of forks at a vertical section
where there is no wear. This thickness is dimen-
sion X. Now measure thickness at heel of fork
( Figure 7). If the thickness of the heel is not
greater than 90% of dimension X, replace fork.
LIFT CHAINS
Lubrication
WARNING
When working on or near the mast, see Safety
Procedures When Working Near Mast in this
section.
Do not repair a worn or damaged lift chain. If
a lift chain is worn or damaged, both lift chains
must be replaced.
Lubricate lift chains with SAE 30 engine oil. The
best procedure is to remove the chains from the lift
truck and soak them in engine oil. Be sure to clean
any grease or dirt from chains before lubricating. DO
NOT USE STEAM TO CLEAN THE LIFT CHAINS.
Wear, Check
If a section of chain is 3% longer than a similar sec-
tion of new chain, the chain is worn and must be
replaced. Measure chain for wear where it moves
over sheaves. If a chain scale is available, check lift
chains as shown in Figure 22. If a chain scale is not
available, measure 20 links of chain. Measure from
the center of a pin to the center of another pin 20
pitches away. Compare the length with the chart in
Figure 22. Replace the chain if the length of 20 links
of the worn section is more than the wear limit.
36